Work with disk units

Use this option to perform the following actions from the partition from which DST was entered:

• Work with disk configuration.
  • Create and update the disk configuration.
  • Display the logical structure (disk unit and auxiliary storage pool (ASP) information).
• Work with disk unit recovery.

Options on the Work with Disk Units display

Options and menu flow for the Work with disk units options vary, depending on the system paging environment. For details, see System paging environments. Use the following information as a reference during problem analysis and system repair.

Select the Work with disk units option on the Use Dedicated Service Tools display.

Work with disk unit options

Stand-alone paging environment

1. Save load-source disk unit data
2. Copy load-source disk unit data
3. Display/change page data
4. Analyze disk unit surface
5. Initialize and format disk unit
6. Reclaim IOA cache storage
7. Stop device parity protection
8. Update system Vital Product Data

Limited paging environment

1. Work with disk configuration

• Display disk configuration
  • Display disk configuration status
  • Display disk configuration capacity
  • Display disk configuration protection
  • Display non-configured disk units
  • Display device parity status
  • Display disk hardware status
  • Display disk compression status
  • Display hot spare disk unit status
  • Display disk path status
  • Display encryption status
  • Display protection for multiple connection disk units
  • Display status of remove operation

• Work with ASP threshold
• Work with ASP configuration
  • Display disk configuration capacity
  • Delete user ASP
  • Display disk configuration capacity
  • Delete user ASP
  • Add units to ASP
  • Delete ASP data
  • Change ASP storage threshold
  • Move units from one ASP to another
  • Work with removing disk units from configuration
  • Add units to the ASP and balance data

• Work with mirrored protection
  • Start mirrored protection
  • Stop mirrored protection
  • Enable remote load source mirroring
  • Disable remote load source mirroring
  • Display disk configuration
  • Select delay for unit synchronization

• Work with device parity protection
  • Display device parity status
  • Start device parity protection
  • Stop device parity protection
  • Include unit in device parity protection
  • Exclude unit in device parity protection
  • Select parity optimization
• Work with disk compression
  • Display disk compression status
  • Start compression on disk units
  • Stop compression of disk units
• Work with hot spare
  • Display hot spare status
  • Start hot spare
  • Stop hot spare
• Display disk configuration
  • Display encryption status
  • Create encrypted ASPs
  • Add units to encrypted ASP
  • Start encryption on ASPs
  • Stop encryption on ASPs
  • Change data encryption key for basic ASPs
  • Change data encryption key for Independent ASPs
• Work with disk unit recovery
  • Display disk configuration
  • Start mirrored protection
  • Stop mirrored protection
  • Enable remote load source mirroring
  • Disable remote load source mirroring
  • Select delay for unit synchronization
  • Disk unit problem recovery procedures
    • Initialize and format disk units
    • Display/change page data
    • Analyze disk unit surface
  • Suspend mirrored protection
  • Resume mirrored protection
  • Copy disk unit data
  • Delete disk unit data
  • Upgrade load-source utility
  • Rebuild disk unit data
  • Reclaim IOA cache storage
  • Correct device parity protection mismatch
  • Recover unknown load source
  • Recover mirrored load source
  • Recover from start compression failure
  • Migrate load-source disk unit data

Full paging environment

1. Display disk configuration
   • Display disk configuration status
   • Display disk configuration capacity
   • Display disk configuration protection
   • Display non-configured disk units
   • Display device parity status
   • Display device parity status
   • Display disk hardware status
   • Display disk compression status
   • Display hot spare disk unit status
   • Display disk path status
   • Display encryption status
   • Display protection for multiple connection disk units
   • Display status of remove operation
2. Work with disk configuration
   • Display disk configuration
   • Add units to ASPs
   • Work with ASP threshold
   • Add units to ASPs and balance data
   • Enable remote load source mirroring
   • Disable remote load source mirroring
   • Start compression on non-configured disk units
   • Start hot spare
   • Stop hot spare
   • Work with device parity protection
     • Include unit in device parity protection
     • Start device parity protection - RAID 5
     • Start device parity protection - RAID 6
     • Start device parity protection - RAID 5 with hot spare
     • Start device parity protection - RAID 6 with hot spare
     • Select parity optimization
   • Work with encryption
     • Create encrypted ASPs
     • Add units to encrypted ASPs
     • Start encryption on ASPs
     • Stop encryption on ASPs
     • Change data encryption key for basic ASPs
   • Work with removing disk units from configuration
     • Display status of remove operation
     • Remove units from configuration
     • Pause the remove operation
     • Resume the remove operation
     • Cancel the remove operation
     • Cancel the remove operation and balance data in the ASP
   • Work with disk unit recovery
     • Replace configured unit
     • Disk unit problem recovery procedures
       • Initialize and format disk units
       • Display/change page data
       • Analyze disk unit surface
       • Suspend mirrored protection
       • Resume mirrored protection
       • Delete disk unit data
       • Rebuild disk unit data
       • Rebuild IOA cache storage