Veritas Volume Manager 5.0.1 Administrator's Guide, HP-UX 11i v3, First Edition, November 2009

Checking the configuration of large mirrored-stripe volumes
(vxse_mirstripe)
To check whether large mirror-striped volumes should be reconfigured as
striped-mirror volumes, run rule vxse_mirstripe.
A large mirrored-striped volume should be reconfigured, using relayout, as a
striped-mirror volume to improve redundancy and enhance recovery time after
failure.
See “Converting between layered and non-layered volumes” on page 347.
Checking the number of columns in RAID-5 volumes
(vxse_raid5)
To check whether RAID-5 volumes have too few or too many columns, run rule
vxse_raid5.
By default, this rule assumes that a RAID-5 plex should have more than 4 columns
and fewer than 8 columns.
See “Performing online relayout” on page 340.
Checking the stripe unit size of striped volumes (vxse_stripes1)
By default, rule vxse_stripes1 reports a violation if a volume’s stripe unit size
is not set to an integer multiple of 8KB.
See “Performing online relayout” on page 340.
Checking the number of columns in striped volumes
(vxse_stripes2)
The default values for the number of columns in a striped plex are 16 and 3. By
default, rule vxse_stripes2 reports a violation if a striped plex in your volume
has fewer than 3 columns or more than 16 columns.
See “Performing online relayout” on page 340.
Disk sparing and relocation management
The hot-relocation feature of VxVM uses spare disks in a disk group to recreate
volume redundancy after disk failure.
Using Storage Expert
Identifying configuration problems using Storage Expert
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