VERITAS Volume Manager 3.1 Administrator's Guide

Performance Monitoring
Performance Monitoring
Chapter 9 399
vol local 49477 49230 507892 204975 28.5 33.5
vol rootvol 102906 342664 1085520 1962946 28.1 25.6
vol src 79174 23603 425472 139302 22.4 30.9
vol swapvol 22751 32364 182001 258905 25.3 323.2
This output helps to identify volumes with an unusually large number of
operations or excessive read or write times.
To display disk statistics, use the vxstat -d command. The following is
an example of disk statistics produced using the vxstat -d command:
OPERATIONS BLOCKS AVG TIME(ms)
TYP NAME READ WRITE READ WRITE READ WRITE
dm disk01 40473 174045 455898 951379 29.5 35.4
dm disk02 32668 16873 470337 351351 35.2 102.9
dm disk03 55249 60043 780779 731979 35.3 61.2
dm disk04 11909 13745 114508 128605 25.0 30.7
To move the volume archive onto another disk, first identify which
disk(s) it is on using the following command:
# vxprint -tvh archive
The following is an example display:
VNAMESETYPESTATESTATELENGTHREADPOLREFPLEX
PLNAMEVOLUMEKSTATESTATELENGTHLAYOUTNCOL/WDTHMODE
SDNAMEPLEXPLOFFSDISKOFFSLENGTH[COL/]OFFFLAGS
varchivefsgenENABLEDACTIVE204800SELECT-
plarchive-01archiveENABLEDACTIVE204800CONCATRW
sddisk03-03archive-010409600204800/0c1t2d0
NOTE Your system may use a device name that differs from the examples. For
more information on device names, see “Disk Devices”.
The associated subdisks list indicates thatthe archive volume is on disk
disk03. To move the volume off disk03, use the following command:
# vxassist move archive !disk03 dest_disk
where dest_disk is the disk to which you want to move the volume. It is
not necessary to specify a dest_disk . If you do not specify a dest_disk ,
the volume is moved to an available disk with enough space to contain
the volume.
For example, to move the volume from disk03 to disk04, use the