Administering disks

Changing the disk-naming scheme

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Persistent simple or nopriv disks in the boot disk group

Persistent simple or nopriv disks in non-boot disk groups

These procedures use the vxdarestore utility to handle errors in persistent simple and nopriv disks that arise from changing to the enclosure-based naming scheme. You do not need to perform either procedure if the devices on which any simple or nopriv disks are present are not automatically configured by VxVM (for example, non-standard disk devices such as ramdisks).

Note: The disk access records for simple disks are either persistent or non-persistent. The disk access record for a persistent simple disk is stored in the disk’s private region. The disk access record for a non-persistent simple disk is automatically configured in memory at VxVM startup. A simple disk has a non-persistent disk access record if autoconfig is included in the flags field that is displayed by the vxdisk list disk_access_name command. If the autoconfig flag is not present, the disk access record is persistent. Nopriv disks are always persistent.

Note: You cannot run vxdarestore if c#t#d# naming is in use. Additionally, vxdarestore does not handle failures on persistent simple/nopriv disks that are caused by renaming enclosures, by hardware reconfiguration that changes device names. or by removing support from the JBOD category for disks that belong to a particular vendor when enclosure-based naming is in use.

For more information about the vxdarestore command, see the vxdarestore(1M) manual page.

Persistent simple or nopriv disks in the boot disk group

If all persistent simple and nopriv disks in the boot disk group (usually aliased as bootdg) go into the error state, the vxconfigd daemon is disabled after the naming scheme change.

To remove the error state for persistent simple or nopriv disks in the boot disk group

1Use vxdiskadm to change back to c#t#d# naming.

2Enter the following command to restart the VxVM configuration daemon:

# vxconfigd -kr reset

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HP Veritas Volume Manager 5.0 -UX 11i v3 Persistent simple or nopriv disks in the boot disk group, # vxconfigd -kr reset