- Add or initialize one or more disks
Prompts for one or more disk device addresses.
Prompts for a disk group (which defaults to
rootdg). You are also given the alternative of
initializing the disk but leaving it unallocated to a disk group.
If a disk group is specified,
you must name the disk.
A default disk name in the form disk## is
chosen for the
root disk group.
If you add a disk to a disk group other
than rootdg,
the name is in the form diskgroup##, such that
the name are unique within all imported disk groups.
If a disk group is specified for the disks, you are
prompted to specify whether to designate the disks as spares
for the disk group.
- Remove a disk
Prompts for a disk, by disk media name.
The disk is checked
to ensure that no subdisks reside on the disk.
If the disk is in use,
the operation fails with a recommendation to first move all
volumes off the disk.
If this disk is the last disk in a group,
you are also prompted whether to remove the disk group
from the system.
The operation then calls vxdg rmdisk to remove the
disk from its disk group.
If this is the last disk in its disk group,
vxdg deport is used instead.
- Remove a disk for replacement
Prompts for a disk by disk media name.
The disk is checked
for volumes that would lose all mirrors as a result of the operation.
If such volumes exist, those volumes are listed and
you are prompted whether to continue the operation.
The operation calls vxdg -k rmdisk to dissociate
the media record from the physical disk.
If there are formatted disks available that have
disk headers but no disk group,
you are prompted whether to use one of these disks as a
replacement.
- Replace a failed or removed disk
Prompts for a disk media name.
The named media record must be dissociated from a disk.
If the media record is not in the
removed state,
unused disks are scanned for matching disk IDs.
If a disk with a matching disk ID is found,
you are prompted whether to reattach that disk.
If a matching disk is not used,
you are prompted for a new disk,
by device address.
If the named replacement disk has a valid disk header,
but is not allocated to a disk group,
you are prompted
whether to reinitialize the disk.
If the named replacement
disk is listed as allocated to a disk group or to another host,
you are prompted whether to continue the operation.
If the device is initialized, vxdisksetup is called to
set up public and private regions
and to create the disk header.
Given an initialized disk,
the operation replaces the
disk in a disk group with vxdg -k adddisk.
- Mirror volumes on a disk
Prompts for a disk, by media name.
It then prompts
for a destination disk within the same disk group, also by media
name.
Specifying no destination disks indicates that any disk is can be
the destination.
The operation calls vxmirror to mirror the volumes.
- Move volumes from a disk
Prompts for a disk, by media name.
It then prompts
for a possible list of destination disks, also by disk media name.
Specifying no destination disks indicates that any disk is suitable.
The operation calls vxevac to move subdisks
off the disk.
- Enable access to (import) a disk group
Prompts for a disk, by device address.
The operation calls vxdg import to import the disk group stored
on that disk.
- Remove access to (deport) a disk group
Prompts for a disk group name.
The prompt
lists alternate disk groups and the disks
(media name and access name)
that they contain.
The operation calls vxdg
deport.
- Enable (online) a disk device
Prompts for a disk device.
The prompt
lets you display the disks on the system.
The operation
functions only for disks currently offline.
It then makes the disk accessible.
- Disable (offline) a disk device
Prompts for a disk device.
The prompt
lets you display the disks on the system.
The operation
functions only for disks currently online, but not part of
any disk group.
It then marks the disk as offline such that Volume Manager no
longer tries to access the disk.
- Mark a disk as a spare for a disk group
Sets up a disk as a spare device for its disk group.
A spare disk can be used to automatically replace a
disk that has failed.
No space can be used on a disk that is marked as a spare.
- Turn off the spare flag for a disk
Removes a disk from spares list
and returns its space to the general pool of available space.
- Remove (deport) and destroy a disk group
Removes access to and destroys a disk group that is currently
enabled (imported). A disk group may be destroyed if the disks
are needed for some other purpose.
- Unrelocate subdisks back to a disk
Moves subdisks which were hot-relocated following a disk failure
back to the original disk, or to a disk with a different name,
possibly with a different offset.
- Exclude a disk from hot-relocation use
Sets up a disk to be excluded from use by hot-relocation.
The disk is marked as nohotuse and it cannot be used by
hot-relocation to replace a disk that has failed.
However, it remains available to be used as free space
for its disk group.
- Make a disk available for hot-relocation use
Turns off the nohotuse flag on a disk.
Use this option to make a disk available
for hot-relocation use. This only applies to disks that were
previously excluded from hot-relocation use.
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