SYSOPS (System Options)

The SYSOPS (System Options) command is used to display or set various system options.

Syntax

─┬─ SYSTEMOPTIONS ─┬─┬───────────────────────┬────┤
 └─ SYSOPS ────────┘ ├─ ALL ─────────────────┤
                     │ ┌◄─────── , ────────┐ │
                     └─┴──<system option>──┴─┘
                          

<system option>

─┬─/1\─ ABCDIAG ─┬─────────────────────────────────────┬────────┤
 │               ├─────┬─┬─ OFF ───────────────────────┤
 │               └─ = ─┘ ├─ ON ────────────────────────┤
 │                       ├─ MINIMUM ───────────────────┤
 │                       └─ MAXIMUM ───────────────────┤
 ├─/1\─ ALLOWVSSUNALIGN ─┬─────────────────────────────┤
 │                       ├─────┬─┬─ TRUE ──────────────┤
 │                       └─ = ─┘ └─ FALSE ─────────────┤ 
 ├─/1\─ AREAALIGNMENT ──┬──────────────────────────────┤
 │                      ├─────┬─┬─ VSS2 ───────────────┤
 │                      └─ = ─┘ └─ VSS3 ───────────────┤
 ├─/1\─ BACKUPSDEFAULT ─┬──────────────────────────────┤
 │                      ├─────┬─┬─ ALIGNED180 ─────────┤
 │                      └─ = ─┘ ├─ BLOCKED ────────────┤
 │                              └─ STREAM ─────────────┤
 ├─/1\─ BCVRSVPS ─┬────────────────────────────────────┤
 │                └── <switch> ────────────────────────┤
 ├─/1\─ CATALOGLEVELSET ─┬─────────────────────────────┤
 │                       ├─────┬──<catalog level>──────┤
 │                       └─ = ─┘                       │
 ├─/1\─ CCSVERSION ─┬──────────────────────────────────┤
 │                  ├─────┬─┬──<ccsversion name>───────┤
 │                  └─ = ─┘ └──<ccsversion number>─────┤
 ├─/1\─ CIADIAG ─┬─────────────────────────────────────┤
 │               ├─────┬─┬─ OFF ───────────────────────┤
 │               └─ = ─┘ ├─ ON ────────────────────────┤
 │                       ├─ MINIMUM ───────────────────┤
 │                       └─ MAXIMUM ───────────────────┤
 ├─/1\─ CONVENTION ─┬──────────────────────────────────┤
 │                  ├─────┬──<convention name>─────────┤
 │                  └─ = ─┘                            │
 ├─/1\─ COUNTRY ─┬─────────────────────────────────────┤
 │               ├─────┬──<country name>───────────────┤
 │               └─ = ─┘                               │
 ├─/1\─ DIRECTPRINTER ─┬───────────────────────────────┤
 │                     ├─────┬─┬─ DIRECTDLP ───────────┤
 │                     └─ = ─┘ └─ DIRECTPS ────────────┤
 ├─/1\─ ESR ─┬─────────────────────────────────────────┤
 │           ├─────┬─┬─ UNCONDITIONAL ─────────────────┤
 │           └─ = ─┘ ├─ CONDITIONAL ───────────────────┤
 │                   └─ SUPPRESSED ────────────────────┤
 ├─/1\─ HLWAITFAMINDEX ─┬──────────────────────────────┤
 │                      └─ <switch> ───────────────────┤
 ├─/1\─ HOSTCSS ─┬─────────────────────────────────────┤
 │               ├─────┬──<CCS Name>───────────────────┤
 │               └─ = ─┘                               │
 ├─/1\─ IOPBYPASWICACHE ─┬─────────────────────────────┤
 │                       ├─────┬─┬─ TRUE ──────────────┤
 │                       └─ = ─┘ └─ FALSE ─────────────┤
 ├─/1\─ LABELFORMAT ─┬─────────────────────────────────┤
 │                   ├─────┬─┬─ ANSI69DEFAULT ─────────┤
 │                   └─ = ─┘ ├─ ANSI69DEFAULT ─────────┤
 │                           ├─ ANSI69 ────────────────┤
 │                           ├─ ANSI87DEFAULT ─────────┤
 │                           └─ ANSI87 ────────────────┤
 ├─/1\─ LANGUAGE ─┬────────────────────────────────────┤
 │                ├─────┬──<language name>─────────────┤
 │                └─ = ─┘                              │
 ├─/1\─ LMBLOCKSIZE ─┬─────────────────────────────────┤
 │                   ├─────┬──<blocksize>──────────────┤
 │                   └─ = ─┘                           │
 ├─/1\─ LMCDMULTIVOLUME ─┬─────────────────────────────┤
 │                       └───<switch>──────────────────┤
 ├─/1\─ LMENCRYPT ─┬───────────────────────────────────┤
 │                 ├── NO ─────────────────────────────┤
 │                 ├── TDES ───────────────────────────┤
 │                 ├── AES256 ─────────────────────────┤
 │                 └── AESGCM ─────────────────────────┤
 ├─/1\─ LMSINGLESPACE ─┬───────────────────────────────┤
 │                     └───<switch>────────────────────┤
 ├─/1\─ LONGFILENAMES ─┬───────────────────────────────┤
 │                     ├─────┬─┬─ + ───────────────────┤
 │                     └─ = ─┘ ├─ SET ─────────────────┤
 │                             ├─ TRUE ────────────────┤
 │                             └─ YES ─────────────────┤
 ├─/1\─ MEMORYLOCK ─┬──────────────────────────────────┤
 │                  ├─────┬─┬─ SET ────────────────────┤
 │                  └─ = ─┘ └─ RESET ──────────────────┤
 ├─/1\─ NODATEOFFSET ─┬────────────────────────────────┤
 │                    └────<switch>────────────────────┤
 ├─/1\─ OKDTWAITTIME ─┬────────────────────────────────┤
 │                    └────<minutes>───────────────────┤
 ├─/1\─ OPENTIMESTAMP ─┬───────────────────────────────┤
 │                     └────<switch>───────────────────┤
 ├─/1\─ PATHERRLIMIT ─┬────────────────────────────────┤
 │                    ├─────┬──<threshold>─────────────┤
 │                    └─ = ─┘                          │
 ├─/1\─ PERMDIRECTORIES ─┬─────────────────────────────┤
 │                       └────<switch>─────────────────┤
 ├─/1\─ QUEUEDAX ─┬────────────────────────────────────┤
 │                └────<switch>────────────────────────┤
 ├─/1\─ RCBP ─┬────────────────────────────────────────┤
 │            └──<switch>──────────────────────────────┤
 ├─/1\─ RSVPONTAPEERROR ─┬─────────────────────────────┤
 │                       └──<switch>───────────────────┤
 ├─/1\─ SESSIONLOGGING ─┬──────────────────────────────┤
 │                      ├─ UNCONDITIONAL ──────────────┤
 │                      ├─ CONDITIONAL ────────────────┤
 │                      └─ SUPPRESSED ─────────────────┤
 ├─/1\─ SUPPRESSACTIVE ─┬──────────────────────────────┤
 │                      ├─────┬─┬─ ALL ────────────────┤
 │                      └─ = ─┘ ├─ NONE ───────────────┤
 │                              │ ┌◄─────── , ───────┐ │
 │                              └─┴─┬──────────────┬─┴─┤
 │                                  ├─/1\─ JOBS ───┤   │
 │                                  ├─/1\─ LIBS ───┤   │
 │                                  └─/1\─ DBS ────┘   │
 ├─/1\─ SYSTEMDIRECTORY ─┬─────────────────────────────┤
 │                       ├─────┬──<rowsize>────────────┤
 │                       └─ = ─┘                       │
 ├─/1\─ TAPEEXPIRATION ─┬──────────────────────────────┤
 │                      └──<switch>────────────────────┤
 ├─/1\─┬─ TAPEMANAGER ─┬─┬─────────────────────────────┤
 │     └─ TM ──────────┘ └──<switch>───────────────────┤
 ├─/1\─ TAPEOVERWRITE ─┬───────────────────────────────┤
 │                     └──<switch>─────────────────────┤
 ├─/1\─┬─ TAPESERVER ─┬─┬──────────────────────────────┤
 │     └─ TM ─────────┘ └──<switch>────────────────────┤
 ├─/1\─ TIMEOUTERRLIMIT ─┬─────────────────────────────┤
 │                       ├─────┬──<threshold>──────────┤
 │                       └─ = ─┘                       │
 ├─/1\─ UDCHAINLENGTH ─┬───────────────────────────────┤
 │                     ├─────┬──<chain length>─────────┤
 │                     └─ = ─┘                         │
 ├─/1\─ WARNFACTOR ─┬──────────────────────────────────┤
 │                  ├─────┬─┬─ MINIMUM ────────────────┤
 │                  └─ = ─┘ ├─ STANDARD ───────────────┤
 │                          └─ MAXIMUM ────────────────┤
 └─/1\─ WRAPNOWAIT ─┬──────────────────────────────────┤
                    └──<switch>────────────────────────┘

<blocksize>

A positive integer.  See SYSOPS LMBLOCKSIZE <blocksize> later in this section for more information.

<catalog level>

An integer between 1 and 6, inclusive.

<chain length>

An integer in the range of 0 to 31.

<minutes>

An integer in the range of 0 to 60.

<rowsize>

The number 2000, 4000, or 44000.

<switch>

 ──┬─────┬─┬─ SET ────┬─────────────────┤
   └─ = ─┘ ├─ RESET ──┤
           ├─ TRUE ───┤
           ├─ FALSE ──┤
           ├─ + ──────┤
           ├─ - ──────┤
           ├─ ON ─────┤
           ├─ OFF ────┤
           ├─ YES ────┤
           └─ NO ─────┘

<threshold>

An integer in the range of 1 to 1000.

Explanation

SYSTEMOPTIONS

SYSOPS

Display the current values for each of the system options.

SYSOPS ALL

Display the current values for the system options and the possible values for these options. If any values were changed in the same command input, the changes are not displayed until after the next inquiry.

SYSOPS ABCDIAG

SYSOPS ABCDIAG MINIMUM

SYSOPS ABCDIAG MAXIMUM

SYSOPS ABCDIAG ON

SYSOPS ABCDIAG OFF

Displays or sets the value for ABCDIAG. This option should be performed only at the request of Unisys support personnel to help diagnose an ABC channel problem. It is valid only on an MCP compiled with the DIAGNOSTICS compile-time option. It specifies how much diagnostic tracing information to gather for ABC channel activity.

Note: Setting the ABCDIAG option might seriously degrade system performance. It should remain off except for relatively brief periods of time.

SYSOPS ALLOWVSSUNALIGN

SYSOPS ALLOWVSSUNALIGN TRUE

SYSOPS ALLOWVSSUNALIGN FALSE

Displays or sets the value for the ALLOWVSSUNALIGN option. When TRUE, this option enables functionality for migrating disks for compatibility with the Unisys MCP Cyber Recovery Vault.

Note: This option should only be enabled under the supervision and direction of Unisys Support.

SYSOPS AREAALIGNMENT

SYSOPS AREAALIGNMENT VSS2

SYSOPS AREAALIGNMENT VSS3

Displays or sets the value for the AREAALIGNMENT option. This option assigns the default value of the AREAALIGNMENT file attribute for disk files. By default, the value is VSS2.

Note: For more information on the AREAALIGNMENT file attribute, see the File Attributes Programming Reference Manual.

SYSOPS BACKUPFSDEFAULT

SYSOPS BACKUPFSDEFAULT ALIGNED180

SYSOPS BACKUPFSDEFAULT BLOCKED

SYSOPS BACKUPFSDEFAULT STREAM

Display or set the value for the BACKUPFSDEFAULT option. This option assigns the default FILESTRUCTURE value for printer backup disk files. By default, the value is ALIGNED180.

SYSOPS BCVRSVPS

SYSOPS BCVRSVPS <switch>

Display or set the value for the BCVRSVPS option. By default, the value is TRUE. If the BCVRSVPS option is TRUE, a warning displays whenever the operator attempts to acquire a BCV. If the option is FALSE, the warnings are suppressed and the BCVs are acquired without operator intervention. If there are any BCV RSVPS waiting for the operator when the BCVRSVPS option is set to FALSE, all the waiting entries are acknowledged and the BCVs imported.

SYSOPS CATALOGLEVELSET

SYSOPS CATALOGLEVELSET <number>

Display or set the value for the CATALOGLEVELSET system option. Valid values for CATALOGLEVELSET are the integers 1 through 6.

At sites that run with the OP + CATALOGING option set, the system uses this number to determine the CATALOGLEVEL. That is, this value determines the number of generations of a cataloged disk file or cataloged tape file that the system will keep track of. A value of 1 means the system will allow two generations, 0 and 1; a value of 2 means the system will allow three generations, 0, 1, and 2; and so forth. The default value for CATALOGLEVELSET is 3.

When you change the value of CATALOGLEVELSET the new value applies to new files. Existing resident disk files and existing nonresident disk and tape files will continue to use the value under which they were originally created. To apply the new value of CATALOGLEVELSET to an existing file, you can either remove or change the name of that file, then use the WFL “CATALOG PURGE <file name> (PACK, FAMILYNAME=<family>)“statement to delete all catalog information for the file, and then restore the file or change the name of the file back to its original name.

SYSOPS CCSVERSION

SYSOPS CCSVERSION <ccsversion name>

SYSOPS CCSVERSION <ccsversion number>

Display or set the value for the CCSVERSION system option. If a new character set is specified, it is implemented after the next halt/load. For more information about what a ccsversion is and how to use it, refer to the MultiLingual System Administration, Operations, and Programming Guide.

SYSOPS CIADIAG

SYSOPS CIADIAG MINIMUM

SYSOPS CIADIAG MAXIMUM

SYSOPS CIADIAG ON

SYSOPS CIADIAG OFF 

Displays or sets the value for CIADIAG. This option should be performed only at the request of Unisys support personnel to help diagnose a CIA problem. It is valid only on an MCP compiled with the DIAGNOSTICS compile-time option set. It specifies how much diagnostic tracing information to gather for FastPath CIA activity. 

Note: Setting this option might seriously degrade system performance. It should remain off except for relatively brief periods of time.

SYSOPS CONVENTION

SYSOPS CONVENTION <convention name>

Display or set the value for the CONVENTION system option. For more information about what a convention is and how to use it, refer to the MultiLingual System Administration, Operations, and Programming Guide.

SYSOPS COUNTRY

SYSOPS COUNTRY <country name>

COUNTRY is an alphanumeric string from 1 to 17 characters in length. The COUNTRY string is not compared with any predefined values. The default system option COUNTRY is UNITEDSTATES.

SYSOPS DIRECTPRINTER

SYSOPS DIRECTPRINTER = DIRECTDLP

SYSOPS DIRECTPRINTER = DIRECTPS

Display or set the value of the DIRECTPRINTER option. This option affects the printing of printer backup files declared as DIRECT files or having a PRINTDISPOSITION file attribute value of DIRECT. The DIRECTPRINTER option values have the following effects:

  • DIRECTDLP specifies that DIRECT files can be printed only to devices attached to printer DLPs.

  • DIRECTPS specifies that DIRECT files can be printed to any device controlled by the Print System, except for virtual servers.

In addition, for any files declared with KIND = PRINTER and PRINTDISPOSITION = DIRECT, the PRINTDISPOSITION value is changed to match that of the DIRECTPRINTER system option.

The default value is DIRECTDLP. 

SYSOPS ESR

Displays the current setting of the Electronic Service Request (ESR) option to control the disposition of an ESR event.

Note: For information about ESRs, refer to the System Assistant Operations and Programming Guide.

SYSOPS ESR = UNCONDITIONAL

Generates Electronic Service Requests (ESRs) when an ESR event occurs.

SYSOPS ESR = CONDITIONAL

Generates an RSVP waiting entry when an Electronic Service Request (ESR) event occurs.

SYSOPS ESR = SUPPRESSED

Stops the system from generating Electronic Service Requests (ESRs).

SYSOPS HLWAITFAMINDEX

SYSOPS HLWAITFAMINDEX <switch>

Displays or sets the value of the HLWAITFAMINDEX option. This option can be set at any time and is reset by default.

The HLWAITFAMINDEX option affects the way the system readies disk families at halt/load time. If this option is set and a continuation pack for a family is not available, the process that readies the family issues the following RSVP message:

 REQUIRES PK [<serial number>] #<family index number>
   <family name>

You should try and ACQUIRE or RY the missing disk. If you cannot do this, reply with either OF (proceed without waiting) or DS (terminate) to the RSVP as follows.

Response Result
<mix number> OF The process readies the family without waiting for the missing continuation pack.
<mix number> DS Except in the case of the halt/load and DL CATALOG families, the process terminates without readying the disk family. For the halt/load and DL CATALOG families, the process continues as described for the <mix number> OF reply.

Setting HLWAITFAMINDEX can result in an RSVP message if there are missing family members. The option is not changed unless the missing family members are mounted or the operator indicates that the missing family members are to be ignored.

Even if the option is changed, the family configuration can still change causing system initialization to wait for missing family members.

Note: The missing family member check is only performed when the option is changed from reset to set. You can force the check to occur by resetting the option and then setting it (that is SYSOPS HLWAITFAMINDEX - followed by SYSOPS HLWAITFAMINDEX +).

SYSOPS HOSTCCS

Displays the current status of the HOSTCCS option.

SYSOPS HOSTCCS = <CCS Name>

Use this command to set the HOSTCCS option. The HOSTCCS option can be set only when the next default value of CCSVERSION is ASERIESNATIVE. Setting this option changes the value of the HOSTCCS from the default CCSVERSION to the designated <CCS Name>.

The <CCS Name> must be a member of the following approved CCS list:

  • ASERIESEBCDIC (4)

  • LATIN1EBCDIC (12)

  • LATIN5EBCDIC (14)

  • CANSUPPLEBCDIC (16)

  • LATINGREEKEBCDIC (19)

  • LATIN2EBCDIC (26)

  • LATINCYRILLICEBC (29)

  • ARABIC20EBCDIC (34)

  • LATIN9EBCDIC (47)

  • LOCALEBCDIC (50)

  • IBMSWEDENEBCDIC (51)

  • JAPANEBCDICJBIS8 (100)

  • EBCDICKSC5601 (105)

  • EBCDICGB2312 (111)

  • JAPANV24JBIS8 (114)

Note: Use of the ??RJ (Remove JOBDESC File) command is not required for the MCP to expand the size of the current Job Description file.

SYSOPS IOPBYPASWICACHE

Displays the value of the IOPBYPASWICACHE option. If "(pending)" appears in the text, it means that the specified value will not become active until after the next halt/load.

SYSOPS IOPBYPASWICACHE FALSE

Disables the IOPBYPASWICACHE option. This is the suggested setting for systems with a relatively small I/O working set, and means that native-180 format emulated disk units will be accessed using Windows File Cache mode and one active I/O processing thread.

SYSOPS IOPBYPASWICACHE TRUE

Enables the IOPBYPASWICACHE option. This is the suggested setting for systems with a relatively large I/O working set, and means that native-180 format emulated disk units will be accessed bypassing Windows File Cache mode and using multiple active I/O processing threads.

SYSOPS LABELFORMAT

Displays the ANSI standard being used to format tape labels when you create tapes. The default is ANSI69DEFAULT.

SYSOPS LABELFORMAT = ANSI69

SYSOPS LABELFORMAT = ANSI69DEFAULT

If you choose this option, the ANSI69 standard is used to format tape labels when you create tapes. For information about the ANSI69 tape labels, refer to the I/O Subsystem Programming Guide.

If SECURITYLABELS attribute is set for the tape volume, the ANSI87 standard is used to format the tape labels regardless of the setting of the LABELFORMAT  option. 

SYSOPS LABELFORMAT = ANSI87

SYSOPS LABELFORMAT = ANSI87DEFAULT

If you choose this option, the ANSI87 standard is used to format tape labels when you create tapes. For information about the ANSI87 tape labels, refer to the I/O Subsystem Programming Guide.

SYSOPS LANGUAGE <language name>

Display or set the value for the LANGUAGE system option. If a new system language is specified, it is implemented after the next halt/load. For more information about what a language is and how to use it, refer to the MultiLingual System Administration, Operations, and Programming Guide.

SYSOPS LMBLOCKSIZE

Displays the current default block size (in words) that library maintenance uses for disk sources, disk destinations, and tape destinations.

SYSOPS LMBLOCKSIZE = 0

Clears the value specified for LMBLOCKSIZE to zero, which directs library maintenance to use its standard internal default values. These values depend on the kind of disk or tape volume being used, as shown in the following table.

Kind

Density

Default Block size

PK/DK

N/A

5400 words

MT

11000

10800 words

MT

9840

10800 words

MT

FMTLT03

64800 words

SYSOPS LMBLOCKSIZE <blocksize>

Sets the default block size (in words) that library maintenance is to use for copying to and from disk and copying to tape. The maximum valid value is 64800. The system automatically rounds the specified number up to an integer multiple of 900 words, which is the record size used by library maintenance.

Depending on the kind of tape your installation uses, you can increase the default block size to improve the performance of library maintenance tasks, and to increase the amount of data that can be stored on library maintenance tapes. If you specify a value of 5400 or more, the following benefits occur:

  • Processing time used for library maintenance runs is reduced by at least half.

  • Performance of disk-to-disk and disk-to-tape copy operations is greatly improved.

  • Performance of tape-to-tape copy operations is greatly improved if the input tape has the same block size as the LMBLOCKSIZE value.

For tape units, there are two special limits on the block size that library maintenance can use. In general, the special tape limits only affect the use of block sizes greater than 10800.

First, certain tape drives have a built-in maximum block size.

Tape Drive Name

Density

Maximum Library Maintenance Block size

HS8500(C) (8mm)

11000

40500

ALP440/TAL408012 (rmm)

FMTDDS

FMTDDS2

FMTDDS3

FMTDDS4

10800

OST5136, CTS5236, CTS4890, ALP8436

FMT36TRK

43200

ALP920 (AIT)

FMTAIT

FMTAIT2

64800

CTS9840, CTS9840B, CTS9840C, CTS9940B

FMT9840

FMT9840C

FMT9940

43200

DLT7000, DLT8000, SDLT320

FMTDLT20

FMTDLT35

FMTDLT40

FMTDLT160

64800

LTO Gen 2

FMTLTO

64800

LTO Gen 3

FMTLTO3

64800

Note: Library maintenance always adds one word for the record sequence number. For example, setting the block size to 43200 yields a block size of 43201.

When writing to tape volumes on tape units with special limits, library maintenance automatically limits the block size it uses to conform to the allowable maximums even if you specify a value that exceeds their limits. However, if you are copying files to a tape volume that does not have limits, and that tape might later be read on a tape unit that does have limits, you need to make sure that library maintenance writes the tape with a block size that can be read on the target tape unit.

Second, the type of connection to a tape unit might also impose a limit on the maximum block size that can be used. The soft or emulated controls (either a SCSI DLP or Native SCSI Channel) limit the maximum block size of any tape connected to it to 65535 bytes, which corresponds to a maximum library maintenance block size of 10800 words. You can use the LOG CONFIG or LOG C CONFIG forms of the LOG (Analyze Log) command to determine whether or not a given tape unit is attached to an emulated SCSI. In the Unit Configuration section of the LOG CONFIG report, tapes listed as SCSI with a firmware level of D101 or higher are emulated SCSI DLPs.

SYSOPS LMCDMULTIVOLUME

SYSOPS LMCDMULTIVOLUME <switch>

Displays or sets the value of the LMCDMULTIVOLUME option. This option can be set at any time and is reset by default.

When the LMCDMULTIVOLUME option is set, the default value for the Library Maintenance MULTIVOLUME file attribute is TRUE. You can override the LMCDMULTIVOLUME attribute by specifying MULTIVOLUME = TRUE or MULTIVOLUME = FALSE in the COPY statement.

SYSOPS LMENCRYPT

SYSOPS LMENCRYPT NO

SYSOPS LMENCRYPT TDES

SYSOPS LMENCRYPT AES256

SYSOPS LMENCRYPT AESGCM

Display or set the value of the LMENCRYPT system option. Library maintenance uses the option to determine the default encryption option when copying data to tape. Use NO (the default) to prevent library maintenance from encrypting the data that it copies to tape. Use TDES to request that library maintenance use the triple DES algorithm for encrypting all data being copied to tape. Use AES256 to request that library maintenance use the AES256 algorithm for encrypting all data being copied to tape. Use AESGCM to request that library maintenance use the AESGCM algorithm for encrypting all data being copied to tape. If you specify the ENCRYPT file attribute for a destination tape volume in a WFL COPY statement, the value of the file attribute overrides the SYSOPS LMENCRYPT option.

SYSOPS LMSINGLESPACE

SYSOPS LMSINGLESPACE <switch>

Display or set the value of the LMSINGLESPACE system option. This option can be changed at any time and is reset by default. You can use this option to avoid file sequence errors when copying files from an 18-track tape volume with a density of BPI_38000 that is loaded on a 36-track OST5136 or CTS5236 tape unit. If you specify the LIBMAINTSINGLESPACE file attribute for a source volume in a COPY statement, the value of the file attribute overrides the SYSOPS LMSINGLESPACE option.

SYSOPS LONGFILENAMES

SYSOPS LONGFILENAMES +

SYSOPS LONGFILENAMES SET

SYSOPS LONGFILENAMES TRUE

SYSOPS LONGFILENAMES YES

Display or set the value for the LONGFILENAMES system option. This feature makes it easier for you to copy files with long names between Windows environments and the MCP environment.

When LONGFILENAMES is RESET, file names are limited to 12 identifiers and 17 characters per identifier. When LONGFILENAMES is SET, users can create file names with up to 20 identifiers. Identifiers can exceed 17 characters, but the total file name cannot exceed 215 characters.

Setting LONGFILENAMES results in an RSVP message. The change does not take place until you reply OK to the RSVP message and halt/load the system. After the halt/load, the system migrates to a new file system that supports long file names. See the System Operations Guide for more information.

Additionally, the LONGFILENAMES option determines the size limit for the central SYSTEM/ACCESS directory and the SYSTEM/CATALOG directory. If the LONGFILENAMES option is SET then the size of the areas in the directory is 2048 sectors, and the maximum number of areas is 1000 for a capacity of 2,048,000 sectors. If the LONGFILENAMES option is RESET, then the size of the areas is 1200 sectors, and the maximum number of areas is approximately 440 for a total capacity of about 528,000 sectors. For more information on managing directory space, see the System Administration Guide.

Note: Not all MCP environment utilities recognize long file names.

 Caution

Both the sending and destination hosts must have the SYSOPS LONGFILENAMES option set when a file transfer involves a file or files with node names exceeding 17 characters.

Migration to the new file system should be viewed as a one-time migration and is not intended to be reversed. Once the system has migrated to the new file system, you cannot use the SYSOPS command to return to the old file system. Returning to the old file system results in the loss of all files with long names. If you must return to the old file system, you need to use LOADER to cold start the system on a new halt/load family.

SYSOPS MEMORYLOCK

Displays the value of the MEMORYLOCK option. If "(pending console load)" or "(pending halt/load)" is displayed in the response, the specified value will not become active until after the next console load or halt/load.

The default value is RESET.

Note: The MEMORYLOCK option can help provide consistent performance for fast memory dumps. For more information on the MEMORYLOCK option, see Fast Memory Dump.

SYSOPS MEMORYLOCK RESET

Disables the MEMORYLOCK option. If the firmware memory locking feature is currently enabled, a console load is required to disable the feature.

SYSOPS MEMORYLOCK SET

Enables the MEMORYLOCK option. If the firmware memory locking feature is currently disabled, a halt/load is required to enable the feature.

SYSOPS NODATEOFFSET

SYSOPS NODATEOFFSET <switch>

Display or set the value for the NODATEOFFSET system option. The default value is RESET. When you set this option, assignments to the DATEOFFSET task attribute are not allowed. If a process tries to set this attribute, a warning message is displayed.

The DATEOFFSET task attribute is described in the Task Attributes Programming Reference Manual.

SYSOPS OKTDWAITTIME

SYSOPS OKTDWAITTIME<minutes>

Display or set the value of the OKTDWAITTIME system option. This option places a time limit on the waiting entry that occurs when OKTIMEANDDATE (option 24) is set. OKTDWAITTIME is specified and displayed in minutes with a range of 0-60 (0 = disabled).

If OKTDWAITTIME has a non-zero value when the waiting entry for OKTIMEANDDATE is initiated, the MCP will resume system initialization if an operator does not reply within the specified time. If an operator changes OKTDWAITTIME while the MCP is waiting for TIMEOK, the change is accepted, but has no effect on the currently waiting entry.

SYSOPS OPENTIMESTAMP

SYSOPS OPENTIMESTAMP <switch>

Display or set the value of the OPENTIMESTAMP system option. You can change this option at any time. If OPENTIMESTAMP is set, the system stores a time stamp value in the header of a disk file whenever that file is opened.

The OPENTIMESTAMP option is reset by default, because storing the time stamp information at file open time incurs the extra overhead of a write action to the system directory or system directories for the disk family on which the file resides.

You can display the open timestamp value of a disk file with the PD and PDRES system commands or the CANDE LFILES command, or with the FILEDATA ATTRIBUTES request.

You can programmatically retrieve the open timestamp information with the GETSTATUS procedure or GETHEADERATTRIBUTE procedure, or with the new file attributes OPENTIME, OPENDATE, OPENTIMEZONE, OPENTIMEUT, and OPENDATEUT.

SYSOPS PATHERRLIMIT

SYSOPS PATHERRLIMIT <threshold>

Display, set, or reset the value for the PATHERRLIMIT system option. PATHERRLIMIT is the number of path error events (for a given CHAN or TAP) allowed over the past hour, before the MCP takes action. The action depends on the state of the system.

Allowed values are 1 to 1000; The default value is 3.

Setting PATHERRLIMIT to 1 causes action to be taken on every path error.

Setting PATHERRLIMIT to 1000 disables this algorithm.

Note: Path errors tend to occur in groups, because a single event can impact multiple outstanding IO operations. The PATHERRLIMIT algorithm will attempt to address this by considering path error errors which occur in a three second interval to be a single path error event. Transient path errors usually resolve much faster than transient timeout errors.

When the PATHERRLIMIT threshold is exceeded, the MCP takes one of the following actions:

Note: In the following list, “CHAN” refers to the fiber channel path from the HBA in the MCP system to the fiber channel switch, and “TAP” refers to the fiber channel path from the fiber channel switch to the storage system. For direct connections from the HBA in the MCP system to the storage system, CHAN and TAP are essentially the same thing, and the first two points below do not apply.
  • If a redundant CHAN is available but a redundant TAP is not available, the CHAN will be taken out of service and a system message is generated.

  • If a redundant TAP is available but a redundant CHAN is not available, the TAP will be taken out of service and a system message is generated.

  • If a redundant CHAN is available and a redundant TAP is available:

    • If recent errors via the TAP exceed recent errors via the CHAN, the TAP will be taken out of service and a system message is generated.

    • Otherwise, the CHAN will be taken out of service and a message is displayed on the ODT.

  • If no redundant CHAN or TAP is available, and no message has been issued in the last four minutes, a message to that effect will be issued.

    This message is throttled to one per four-minute interval in order to avoid overwhelming the ODT and the SUMLOGs if many path errors are occurring and a redundant path is available.

SYSOPS PERMDIRECTORIES

SYSOPS PERMDIRECTORIES <switch>

Display, set, or reset the value for the PERMDIRECTORIES system option. When PERMDIRECTORIES is set, privileged users can use the MKDIR command in WFL to create the root permanent directory *DIR on specific disk families. Thereafter, users can create permanent directories on those families. Permanent directories are similar to the directories supported in Novell Netware and Windows  environments. You can use permanent directories to help control access to files that are shared among groups of users. For further information, refer to the System Administration Guide and the System Operations Guide.

SYSOPS QUEUEDAX

SYSOPS QUEUEDAX <switch>

Display or set the value for the QUEUEDAX option. When you turn on the option, the system can queue as many as 250 AX (Accept) messages for a task. If you turn off the option, the system queues only one AX message for each task; subsequent messages overwrite previous messages.

If you enter SYSOPS QUEUEDAX and the system has already queued some messages, subsequent ACCEPT messages issued by the task continue to take response messages from the front of the queue until the queue becomes empty. However, the next AX command directed to a task produces the following results:

  • Flushes the entire AX queue for that task

  • Maintains from that point a queue depth of one

SYSOPS RCBP

SYSOPS RCBP <switch>

Display or set the value for the RCBP system option. When you set this option, the system activates a checking feature to prevent accidental reconfiguration of base packs in a multipack family. If an RC (Reconfigure Disk) command is entered for a directory-capable base pack, the system displays system warning and RSVP messages. An operator must reply OK to continue the reconfigure operation if another base pack for the family can be used or if the continuation packs are also to be reconfigured. A reply of DS aborts the RC command and retains the multipack family environment.

SYSOPS RSVPONTAPEERROR

SYSOPS RSVPONTAPEERROR <switch>

Display or modify the value for the RSVPONTAPEERROR system option. The default value is RESET. This option, if SET, causes a tape drive to be saved automatically and an RSVP message issued when an irrecoverable tape I/O error results in the abnormal termination of a task.

SYSOPS SESSIONLOGGING

SYSOPS SESSIONLOGGING UNCONDITIONAL

SYSOPS SESSIONLOGGING CONDITIONAL

SYSOPS SESSIONLOGGING SUPPRESSED

Display or set the value for the SESSIONLOGGING system option, which controls whether a job file is produced from an MCS session. The default value is UNCONDITIONAL. When the SESSIONLOGGING option is set to UNCONDITIONAL, a job file is always created. When the SESSIONLOGGING option is set to CONDITIONAL, a job file is created if any log record other than Log On or Log Off is generated for the session. When the SESSIONLOGGING option is set to SUPPRESSED, a job file is not created. The JOBSUMMARY option setting determines whether any created job summary is printed when the session terminates; however, if a job file is not created, a job summary is not created.

Session log-off performance is improved for all sessions if the option is set to SUPPRESSED. A setting of CONDITIONAL generally improves MARC session log-off performance, but has no effect on most CANDE sessions.

If you need to generate job summaries from sessions, set the option to CONDITIONAL. If you never need such summaries, set the option to SUPPRESSED.

SYSOPS SUPPRESSACTIVE NONE

SYSOPS SUPPRESSACTIVE ALL

SYSOPS SUPPRESSACTIVE JOBS, LIBS, DBS

Display or set the value for the SUPPRESSACTIVE system option. The SUPPRESSACTIVE system option controls whether jobs, freeze-control libraries, and database task stacks are displayed in an Active Entries response. For the purpose of this option, jobs include active jobs and tasks with no parent.

Note: The values JOBS, LIBS, and DBS can be listed in any order, as long as the values are separated by commas.

SYSOPS SYSTEMDIRECTORY

SYSOPS SYSTEMDIRECTORY 2000

SYSOPS SYSTEMDIRECTORY 4000

SYSOPS SYSTEMDIRECTORY 44000

The size limit for a SYSTEMDIRECTORY is 1000 AREAS. When you use the RC PK<unit number> system command to create a new disk family, the default size of the AREAS for the SYSTEMDIRECTORY depends upon the kind of disk and the SYSOPS SYSTEMDIRECTORY setting. Refer to the following table for the default style of SYSTEMDIRECTORY generated with different values for SYSOPS SYSTEMDIRECTORY.

Disk Format

SYSOPS SYSTEMDIRECTORY

Directory Generated from RC command

180-byte

2000

4000

44000

AREASECTORS = 2000

AREASECTORS = 4000 (VSS-2 style)

AREASECTORS = 44000 (VSS-3 style)

VSS-1

2000

4000

44000

AREASECTORS = 2000

AREASECTORS = 4000 (VSS-2 style)

AREASECTORS = 44000 (VSS-3 style)

VSS-2

2000

4000

44000

AREASECTORS = 4000 (VSS-2 style)

AREASECTORS = 4000 (VSS-2 style)

AREASECTORS = 44000 (VSS-3 style)

Notes:
  • A SYSTEMDIRECTORY with 4000 sectors per area is a Virtual Sector Size 2 (VSS-2) style directory. A SYSTEMDIRECTORY with 44000 sectors per area is a Virtual Sector Size 3 (VSS-3) style directory.

  • If the RC command also specifies a VSS option that corresponds to an AREASECTORS value that is greater than the value of SYSOPS SYSTEMDIRECTORY, the greater value is used. For example, if SYSOPS SYSTEMDIRECTORY is set to 4000 and the VSS = VSS3 option is used when entering the RC command for a VSS-2 pack, the AREASECTORS value used is 44000 instead of the default 4000 specified by SYSOPS SYSTEMDIRECTORY.

The maximum size of a SYSTEMDIRECTORY is 600,000, 2,000,000, 4,000,000, or 44,000,000 sectors depending on the size of the AREAS of that SYSTEMDIRECTORY.

You can use the DU SYSTEMDIRECTORY ON <family name> system command to monitor the size and usage of  a SYSTEMDIRECTORY.

To make space available in a SYSTEMDIRECTORY, you have to remove files from the disk family.

SYSOPS TAPEMANAGER

SYSOPS TAPEMANAGER <switch>

Display or modify the value for the TAPEMANAGER system option. The default value is RESET.

SYSOPS TAPESERVER

SYSOPS TAPESERVER <switch>

Display or modify the value for the TAPESERVER system option. The default value is RESET.

SYSOPS TAPEEXPIRATION

SYSOPS TAPEEXPIRATION <switch>

Display or set the value for the TAPEEXPIRATION system option. The default is TRUE. When the MCP reads the labels on a tape and this option is FALSE, the MCP ignores the expiration date of the tape. When the MCP reads the labels on a tape and this option is TRUE, the MCP treats the tape as a scratch tape if the current date is past the expiration date, the tape is write-enabled, and the tape is labeled an ordinary data tape. Library maintenance tapes and printer backup tapes are never treated as scratch tapes.

SYSOPS TAPEOVERWRITE

SYSOPS TAPEOVERWRITE <switch>

Display or set the value for the TAPEOVERWRITE system option. This option determines whether the system assigns an output tape file to a given tape volume in cases where all the following conditions are true:

  • The tape file has a non-null SERIALNO value matching the serial number of the tape volume.

  • The tape volume is write enabled.

  • The tape volume is not a scratch tape.

In this situation, if TAPEOVERWRITE is TRUE, then the system assigns the output file to the tape volume. If TAPEOVERWRITE is FALSE, then the system does not assign the output file to the tape volume. The default value of TAPEOVERWRITE is TRUE.

SYSOPS TIMEOUTERRLIMIT

SYSOPS TIMEOUTERRLIMIT <threshold>

Display, set, or reset the value for the TIMEOUTERRLIMIT system option. TIMEOUTERRLIMIT is the number of timeout error events (for a given CHAN or TAP) allowed over the past hour, before the MCP takes action. The action depends on the state of the system.

Allowed values are 1 to 1000; the default value is 3.

Setting TIMEOUTERRLIMIT to 1 causes action to be taken on every timeout error.

Setting TIMEOUTERRLIMIT to 1000 disables this algorithm.

Note: Timeout errors are also considered path errors, so to fully disable handling of timeout errors, PATHERRLIMIT must also be disabled.

For the purpose of this algorithm, a path error is considered a timeout error if the IOTIMER expired, or if any other path error occurred, which caused the IO operation to be outstanding for more than 70% of the IOTIMER setting.

Note: Timeout errors tend to occur in groups, because a single event can impact multiple outstanding IO operations. The TIMEOUTERRLIMIT algorithm will attempt to address this by considering timeout errors which overlap in time to be a single timeout event.

When the TIMEOUTERRLIMIT threshold is exceeded, the MCP takes one of the following actions:

Note: In the following list, “CHAN” refers to the fiber channel path from the HBA in the MCP system to the fiber channel switch, and “TAP” refers to the fiber channel path from the fiber channel switch to the storage system. For direct connections from the HBA in the MCP system to the storage system, CHAN and TAP are essentially the same thing, and the first two points below do not apply.
  • If a redundant CHAN is available but a redundant TAP is not available, the CHAN will be taken out of service and a system message is generated.

  • If a redundant TAP is available but a redundant CHAN is not available, the TAP will be taken out of service and a system message is generated.

  • If a redundant CHAN is available and a redundant TAP is available:

    • If recent errors via the TAP exceed recent errors via the CHAN, the TAP will be taken out of service and a system message is generated.

    • Otherwise, the CHAN will be taken out of service and a message is displayed on the ODT.

  • If no redundant CHAN or TAP is available, and no message has been issued in the last four minutes, a message to that effect will be issued.

    This message is throttled to one per four-minute interval in order to avoid overwhelming the ODT and the SUMLOGs if many path errors are occurring and a redundant path is available.

SYSOPS UDCHAINLENGTH

SYSOPS UDCHAINLENGTH <chain length>

Display or set the value for the UDCHAINLENGTH system option. The UDCHAINLENGTH system option controls the generation of a warning message when the number of index overflow blocks in the USERDATAFILE becomes too large. The option can have a value from 0 to 31. The default value is 3. A value of 0 inhibits the warning message. Otherwise, the value is the number of index overflow blocks which trigger the warning. The warning is generated only once every halt/load; however, the warning status is reset whenever the option is assigned (assigning the existing value is sufficient to reset the status).

SYSOPS WARNFACTOR

Displays the current value for the WARNFACTOR option and the approximate System Software Release (SSR) at which the code files will expire.

The WARNFACTOR option determines which code files receive recompilation warning messages when they are executed. The warning message indicates that the code file must be recompiled in order to run when the system is upgraded. The system displays the warning message each time it executes a code file that requires recompilation to run on the SSR level subsequent to the displayed SSR.

SYSOPS WARNFACTOR MINIMUM

If you choose this option, the recompilation warning message is issued for only code files that require recompilation to run on system software released after the next year (approximately 12 months). For example, for SSR 50.1, the MINIMUM setting results in warning messages for code files that expire on or before SSR 51.1. Code files that expire after that period do not receive the warning message on the SSR 50.1 level of software. Use this option if your site expects to upgrade to a new software level (SSR) within the next year.

SYSOPS WARNFACTOR STANDARD

If you choose this option, the recompilation warning message is issued for only code files that require recompilation to run on system software released after the next 2 years (approximately 24 months). For example, for SSR 50.1, the STANDARD setting results in warning messages for code files that expire on or before SSR 52.1. Code files that expire after that period do not receive the warning message on the SSR 50.1 level of software. Use this option if the site has no plans to upgrade the software within the near future, but does expect to upgrade before the end of the life cycle of the current software level.

SYSOPS WARNFACTOR MAXIMUM

If you choose this option, the recompilation warning message is issued for only code files that require recompilation to run on system software released after the next 3 years (approximately 36 months). For example, for SSR 50.1, the MAXIMUM setting results in warning messages for code files  that expire on or before SSR 53.1. Code files that expire after that period do not receive the warning message on the SSR 50.1 level of software. Use this option if the site prefers to wait until the current level of software is no longer supported before upgrading to the newest software level available at the time of the upgrade.

SYSOPS WRAPNOWAIT

SYSOPS WRAPNOWAIT <switch>

Display or modify the value for the WRAPNOWAIT system option. The default value is RESET. This option, if set, prevents processes from waiting for an RSVP when a wrap is attempted without the presence of the wrap license key. If the wrap license key is not present, the files are wrapped for Unisys support use only.

Examples

Example 1

The following example sets a new value for the CCSVERSION system option:

SYSOPS CCSVERSION = USEBCDIC
  ---------------------SYSTEM OPTIONS-------------------
    SYSTEM OPTION(S) are changed as follows:
    The current CCSVERSION is ASERIESNATIVE ( 0 ).
    The CCSVERSION following the next HALTLOAD will be
     USEBCDIC ( 1 ).

Example 2

Use the following example when you want to indicate that all subsequent tapes are to be created with the ANSI87 standard format. Note that a LABELFORMAT task attribute can override the SYSOPS LABELFORMAT specification.

SYSOPS LABELFORMAT =  ANSI87DEFAULT
   ---------------------SYSTEM OPTIONS-------------------
       SYSTEM OPTION(S) are changed as follows:
          LABELFORMAT is ANSI87DEFAULT

Example 3

Use the following example when you want the system to call a TAPEMANAGER library for tape file requests:

SYSOPS TAPEMANAGER = SET
   -------------------- SYSTEM OPTIONS ------------------
      SYSTEM OPTION(S) are changed as follows:
         TAPEMANAGER is being SET

Example 4

Use the following example to indicate that the MCP is to ignore the expiration dates on tapes when it reads tape labels:

SYSOPS TAPEEXPIRATION = FALSE
   -------------------- SYSTEM OPTIONS ------------------
      SYSTEM OPTION(S) are changed as follows:
         TAPEEXPIRATION will be set to FALSE

Example 5

SYSOPS QUEUEDAX TRUE
   -------------------- SYSTEM OPTIONS ------------------
      SYSTEM OPTION(S) are changed as follows:
         QUEUEDAX will be set to TRUE

Example 6

SYSOPS ESR UNCONDITIONAL
   -------------------- SYSTEM OPTIONS -----------------
      SYSTEM OPTION(S) are changed as follows:
         The ESR Software Logging Option is UNCONDITIONAL