Veritas Volume Manager 5.1 SP1 Administrator"s Guide (5900-1506, April 2011)

■ Designate hot-relocation spare disks in each disk group.
■ Add mirrors to volumes.
■ Configure DRL and FastResync on volumes.
The following tasks are to perform ongoing maintenance:
■ Resize volumes and file systems.
■ Add more disks, create new disk groups, and create new volumes.
■ Create and maintain snapshots.
Unsupported disk arrays
After installation, add any disk arrays that are unsupported by Symantec to the
DISKS (JBOD) category.
See “How to administer the Device Discovery Layer” on page 87.
Foreign devices
The device discovery feature of VxVM can discover some devices that are controlled
by third-party drivers, such as for EMC PowerPath. For these devices it may be
preferable to use the multipathing capability that is provided by the third-party
drivers rather than using the Dynamic Multi-Pathing (DMP) feature. Provided
that a suitable array support library is available, DMP can co-exist with such
drivers. Other foreign devices, for which a compatible ASL does not exist, can be
made available to Veritas Volume Manager as simple disks by using the vxddladm
addforeign command. This also has the effect of bypassing DMP.
See “How to administer the Device Discovery Layer” on page 87.
Initialization of disks and creation of disk groups
To place disks in disk groups, use the vxdiskadm program after completing the
installation.
See “Adding a disk to VxVM” on page 109.
Guidelines for configuring storage
A disk failure can cause loss of data on the failed disk and loss of access to your
system. Loss of access is due to the failure of a key disk used for system operations.
Veritas Volume Manager can protect your system from these problems.
Configuring Veritas Volume Manager
Unsupported disk arrays
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