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| Working with existing ISP disk groups | ||
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| Prev | Managing disk groups | Next |
The Intelligent Storage Provisioning (ISP) feature of Veritas Volume Manager (VxVM) has been deprecated. This release does not support creating ISP disk groups. If you have existing ISP disk groups, you can import the disk groups without upgrading the disk group version. In this case, you cannot perform any operations on ISP volumes that would result in a configuration change. In addition, you cannot use any of the current release functionality that requires the upgraded disk group version.
You can upgrade an ISP disk group to the current disk group version. This operation converts all ISP volumes to standard (non-ISP) volumes and deletes ISP-specific objects. The ISP-specific objects include st pool, volume template, capability, and rules. This operation does not affect non - ISP volumes.
Note: |
When you upgrade the ISP disk group, all intent and storage pools information is lost. Only upgrade the disk group when this condition is acceptable. |
To determine whether a disk group is an ISP disk group
# vxprint
Sample output:
Disk group: mydg TY NAME ASSOC KSTATE LENGTH PLOFFS STATE TUTIL0 PUTIL0 dg mydg mydg - - - ALLOC_SUP - - dm mydg2 ams_wms0_359 - 4120320 - - - - dm mydg3 ams_wms0_360 - 4120320 - - - - st mypool - - - - DATA - - dm mydg1 ams_wms0_358 - 4120320 - - - - v myvol0 fsgen ENABLED 20480 - ACTIVE - - pl myvol0-01 myvol0 ENABLED 20480 - ACTIVE - - sd mydg1-01 myvol0-01 ENABLED 20480 0 - - - v myvol1 fsgen ENABLED 20480 - ACTIVE - - pl myvol1-01 myvol1 ENABLED 20480 - ACTIVE - - sd mydg1-02 myvol1-01 ENABLED 20480 0 - - -
In the sample output, st mypool indicates that mydg is an ISP disk group.
The ISP volumes in the disk group are not allowed to make any configuration changes until the disk group is upgraded. Attempting any operations such as grow shrink, add mirror, disk group split join, etc, on ISP volumes would give the following error:
This disk group is a ISP disk group. Dg needs to be migrated to non-ISP dg to allow any configuration changes. Please upgrade the dg to perform the migration.