VERITAS Volume Manager 3.5 Administrator's Guide (September 2002)

Using vxassist
164 VERITAS Volume Manager Administrator’s Guide
The format of entries in a defaults file is a list of attribute-value pairs separated by new
lines. These attribute-value pairs are the same as those specified as options on the
vxassist command line. Refer to the vxassist(1M) manual page for details.
To display the default attributes held in the file /etc/default/vxassist, use the
following form of the vxassist command:
# vxassist help showattrs
The following is a sample vxassist defaults file:
# By default:
# create unmirrored, unstriped volumes
# allow allocations to span drives
# with RAID-5 create a log, with mirroring don’t create a log
# align allocations on cylinder boundaries
layout=nomirror,nostripe,span,nocontig,raid5log,noregionlog,
diskalign
# use the fsgen usage type, except when creating RAID-5 volumes
usetype=fsgen
# allow only root access to a volume
mode=u=rw,g=,o=
user=root
group=root
# when mirroring, create two mirrors
nmirror=2
# for regular striping, by default create between 2 and 8 stripe
# columns
max_nstripe=8
min_nstripe=2
# for RAID-5, by default create between 3 and 8 stripe columns
max_nraid5stripe=8
min_nraid5stripe=3
# by default, create 1 log copy for both mirroring and RAID-5 volumes
nregionlog=1
nraid5log=1
# by default, limit mirroring log lengths to 32Kbytes
max_regionloglen=32k
# use 64K as the default stripe unit size for regular volumes
stripe_stwid=64k
# use 16K as the default stripe unit size for RAID-5 volumes
raid5_stwid=16k