Striping enables you to enhance your system's performance. Several rules enable you to monitor important parameters such as the number of columns in a stripe plex or RAID-5 plex, and the stripe unit size of the columns.
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 309.
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 303.
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 303.
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 303.