VERITAS Storage Foundation 4.1 Cross-Platform Data Sharing Administrator's Guide

Chapter 3, Maintaining Your System
Displaying Information
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Displaying Traditional DRL Map Size and Log Size
Use the vxprint command to display the map length and map alignment of traditional DRL logs:
# vxprint -g dg1 -vl drlvols
# vxprint -g dg1 -vF '%name %logmap_len %logmap_align' drlvols
Displaying the Disk Group Alignment
To discover the value in blocks of the alignment that is set on a disk group, use this command:
# vxprint -g diskgroup -G -F %align
Utilities that print information regarding a disk group record (such as, vxprint and vxdg
list) can also output the disk group alignment. For example, to print information for disk group
dg1, you can use the command:
# vxdg list dg1
Displaying Volume Log Map Values
Use the vxprint command to determine the log map alignment and log map length values:
# vxprint [ -g diskgroup ] -lv volname
For example, to print information for the volume vol1 in disk group dg1, you can use the
command:
# vxprint -g dg1 -lv vol1
The output is of the form:
logging: type=REGION loglen=0 serial=0/0 mapalign=0 maplen=0
(disabled)
This indicates a log map alignment (logmap_align) value of 0, and a log map length
(logmap_len) value of 0.
If the log map is set and enabled, the command and results may be of the form:
# vxprint -lv drlvol
Disk group: dgTestSol
Volume: drlvol
info: len=20480
type: usetype=fsgen
state: state=ACTIVE kernel=ENABLED cdsrecovery=0/0 (clean)
assoc: plexes=drlvol-01,drlvol-02,drlvol-03
policies: read=SELECT (round-robin) exceptions=GEN_DET_SPARSE
flags: closed writecopy writeback