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Learn how to add additional disk units to an existing HyperSwap configuration

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1. To add new disk units to the system, user, or independent ASP, first create the new disk units (LUNs) on the source DS8000 storage controller.

2. Assign the these LUNs on the source DS8000 storage controller to the IBM i.

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Expand
titleInitializing and formatting non-configured units

  1. From the IBM i command line, type STRSST and press enter to start System service tools (SST).

  2. Sign on to SST with your service tools user ID and password.

  3. Select option 3 (Work with disk units).

  4. Select option 3 (Work with disk unit recovery).

  5. Select option 2 (Disk unit problem recovery procedures).

  6. Select option 1 (Initialize and format disk unit).

  7. Select option 1 on the new non-configured disk units that will be added to the ASP.

  8. Press F10 to confirm the choice to initialize and format the disk units.

  9. Exit out of the System Service tools.

4. Create the new LUNs on the HyperSwap target DS8000 storage controller.

Warning

Important: Do not assign the newly created HyperSwap target LUNs to the IBM i yet.

5. Configure HyperSwap replication for the new LUNs:

Expand
titleHyperSwap (no Global Mirror)

  1. Configure Metro Mirror between the new source and target DS8000 LUNs using the mkpprc command from DSCLI. An example of the mkpprc command is shown below:
    mkpprc -dev IBM.2107-75ABC11 -remotedev IBM.2107-75DEF21 -type mmir -mode full 1000:2000

  2. Wait for the replication for the volumes to get to a state of Full Duplex by monitoring the progress with the lspprc command from DSCLI. An example of the lspprc command is shown below:
    lspprc -remotedev IBM.2107-75DEF21 1000:2000

Expand
titleHyperSwap with Global Mirror

The IBM Copy Services Manager Storage Controller must be updated to replicate the new volume.

  1. Configure Metro Mirror between the new HyperSwap source and HyperSwap target DS8000 LUNs using the mkpprc command from DSCLI. An example of the mkpprc command is shown below:
    mkpprc -dev IBM.2107-75ABC11 -remotedev IBM.2107-75DEF21 -type mmir -mode full 1000:2000

  2. Configure Global Copy between the new HyperSwap source and Global Mirror target DS8000 LUNs using the mkpprc command from DSCLI. An example of the mkpprc command for the Global Copy link is shown below:
    mkpprc -dev IBM.2107-75ABC11 -remotedev IBM.2107-75GHI31 -type gcp -mode full 1000:3000

  3. Wait for the replication for the HyperSwap volumes to get to a state of Full Duplex by monitoring the progress with the lspprc command from DSCLI. An example of the lspprc command is shown belowlooks like:
    lspprc -remotedev IBM.2107-75DEF21 1000:2000

  4. Wait for the replication for the Global Copy volumes to have a first pass status of True by monitoring the progress with the lspprc command with the -l option from DSCLI. An example of the lspprc command is shown below:
    lspprc -remotedev IBM.2107-75HGI31 -l 1000:3000

  5. Use the Add copy sets wizard on the IBM Copy Services Manager (CSM) Storage Controller to add the new volumes and new consistency group volumes to the session on the CSM storage controller.

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7. Verify with the Work with HyperSwap Status (WRKHYSSTS) command that HyperSwap is currently active for the ASP the units will be added to. In the example below, HyperSwap status is active for all ASP devices shown on the Work with HyperSwap Status display:

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8. Add the new units to the ASP using SST:

Expand
titleAdding new disk units to an ASP

  1. From the IBM i command line, type STRSST and press enter to start System service tools (SST).

  2. Sign on to SST with your service tools user ID and password.

  3. Select option 3 (Work with disk units).

  4. Select option 2 (Work with disk configuration).

  5. Select option 2 (Add units to ASPs).

  6. Select option 3 (Add units to existing ASPs).

  7. Enter the ASP number of the existing ASP to add units to, using 1 for the system ASP (*SYSBAS), 2-32 for user ASPs, or the ASP number of the independent ASP for an independent ASP.

  8. Confirm the choice to add disk units.

  9. Exit out of the System Service Tools.

9. Verify with the Work with HyperSwap Status (WRKHYSSTS) command that HyperSwap is currently active for the ASP that units were added.

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