The SHOWSPARES command displays a list of disk packs which have been assigned to the spare disk pool for the Mirrored Disk Pooling Facility (MDPF). For more information about MDPF, see the System Administration Guide or the System Operations Guide.

Syntax

Explanation

The spare disk pool is a collection of packs which have been assigned by the customer as spare disks for automatic replacement of failed mirror disks. The pool contains two types of spare disks: free spares and in-use spares.

Free spare disks contain no data and are not actively being used by any system or application software. The entry for each free spare pack displays the unit number, the serial number in brackets, and the word "S P A R E."

In-use spare disks are actively being used as members of an online mirrored set. A display entry is shown for all members of online mirrored sets. The entry for each in-use spare pack shows the unit number, the serial number in brackets, and the family name. These fields are identical to the fields displayed in the PER (Peripheral Status) command.

At any given time, some packs in the spare disk pool might not be available for selection as replacements for failed mirrors. Packs which are excluded are closed (the entry displays the word "C L O S E D") or reserved (the entry displays the word "R E S E R V E D"), or are mirrored sets with less than three online members. Packs not currently available for selection are displayed with the unit numbers enclosed in parentheses.

Example

The following example displays information about a system that has free spare disks in the spare disk pool. The display groups spare disks by capacity and logical sector size. For each group of packs, the group heading includes all subtypes for which the packs are compatible mirrors.

SHOWSPARES

  ----------------------- SPARE DISK POOL ----------------------
  226, 236------------------------------------------------------
    100 *B      [659002]  #1 S P A R E
    300 *B      [659005]  #1 S P A R E
  3680 1440 FIPS-SEQ, 3680 1440 FIPS-INT------------------------
    200 *B      [659004]  #1 S P A R E
  3682----------------------------------------------------------
     71 *B      [659006]  #1  S P A R E
  (1383)*B      [659006]  #1  R E S E R V E D