Veritas Command Reference
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Command
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Meaning
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vxdiskadmin
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Interactive front end to the
vxdisk program
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vxdisk rm disk99
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command to remove a grayed out or obsolete disk, or remove
a disk from a disk group. In this example disk99
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vxdisk list
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List all disks under volume manager control and give there
status.
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vxdisk clearimport c?t?d?s?
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Allow a disk to be imported
after a server crash.
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vxdisk rm c?t?d?
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remove a disk so that it is no longer under volume manager
control
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vxdiskadd c?t?d?
or vxdisksetup -i c?t?d? |
add or bring a disk under volume manager control
It might help to newfs the s2 slice of the disk and perform a vxdctl enable to get it to add a disk |
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vxassist make neville 100m
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make a volume called neville of size 100m using any
available disk
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vxassist make neville 100m disk99
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make a volume called neville to be 100m big using
the disk disk99.
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vxassist mirror neville disk99 disk88
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Uses the disks disk99 and disk88 to make a
mirror on the volume called neville
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vxassist mirror neville 50m layout=mirror
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make a 50 mb mirror called neville using any two
free disks
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vxassist make neville 50m layout=mirror disk99
disk88
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make a 50mb mirror using the two disks disk99 and disk88
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xvassist make neville 50m layout=mirror,stripe,log disk99
disk88 disk77 disk66
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make a 50mb stripe disk using disks disk99 and disk88
and mirror this on a stripped mirror using disk77 and disk66
and use a log subdisk
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vxassist make neville 100m layout=raid5
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make a 100mb raid5 volume
called neville on any free disk
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vxassist -g rootdg mirror vol99 vol88
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In the disk group rootdg
mirror volume vol99 to vol88
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vxassist mirror neville
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mirrior the disk neville
on any free disk
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vxassist naxsize layout=stripe
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This shows the largest stripe you can have on the system
i.e.
Maximum volume size: 18952192 (9254Mb) |
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vxassist naxsize layout=raid5
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This shows the largest raid5 partition you can have on the
system
Maximum volume size: 18952192 (9254Mb) |
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vxassist growto neville 2000
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grow the size of the volume neville
to 2000 512byte sectors
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vxassist growby neville 2000
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grow the size of the volume neville
by 2000 512byte sectors
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vxassist shrinkto neville 2000
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shrink the volume neville
to 2000 512byte sectors
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vxassist shrinkby neville 2000
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shrink the volume neville
by 2000 512byte sectors
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vxassist move neville !disk99
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move the volume neville
to any ouhter disk except disk99
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vxassist maxgrow volume-name
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shows how much the volume can be grown by i.e.
Volume volume-name can be extended by 9476096 to: 12549992 (6127Mb+1896 sectors |
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vxassist addlog volume-name
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create a log disk for a raid5 or mirror of the volume volume-name
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vxtrace volume-name
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traces all the I/O on the selected volume
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vxstat -d
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report disk statistics
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vxedit -g rootdg rename disk99 disk88
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rename the disk disk99
to be called disk88 in the group rootdg
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vxedit -g homedg set spare=on disk99
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set disk99 in the
group homedg to ba a hot spare
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vxedit set user=red group=green mode=0666 neville
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sets the user to red, the group to green and the mode
rw-rw-rw on the volume neville
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vxedit -rf rm neville
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remove a volume called neville and any plex(es) and
subdisks
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vxedit set comment"testing" subdisk01-01
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set the comment field of sunbisk subdisk01-01 to
testing
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vxmirror rootdisk disk99
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mirror all the volumes on the disk rootdisk to the
disk disk99
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vxdg -g homedg rmdisk disk99
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from the disk group homedg
remove the disk disk99
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vxdg -g homedg adddisk disk99=c0t0d0
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in the disk group homedg add the physical disk c0t0d0
calling it disk99
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xvdg free
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display free space on the disks
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vxsd aslog disk-name volume-name
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add a log disk disk-name to the volume volume-name
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vxsd mv subdisk-99 sundisk-88
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move the contents of subdisk-99 to subdisk-88
then move subdisk-88 to the plex where subdisk-99 was. this
leaves subdisk-99 free for whatever.
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vxsd join subdisk-88 subdisk-77 subdisk-99
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joins subdisk-88 and subdisk-77 to create
the new bigger subdisk-99
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vxvol rdpol prefer volume-name plex-name
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set a prefered plex to read from
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vxvol rdpol round neville
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sets a round robin read policy on the volume neville
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vxvol -g disk-group volume-name
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will stop the volume volume-mane in the group disk-group
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vxvol maint neville
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puts the volume neville into maintainance mode
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vxplex att neville plex-01
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attaches the plex plex-01 to the volume neville
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vxmend off plex-name
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sets the plex plex-name offline
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vxmend on plex-name
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sets the plex plex-name on
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vxmend fix clean plex-name
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sets the plex to a clean state so thet you can start the
volume and aceess data
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ssaadm display -p c?
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show disk iops
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ssaadm -t 1|2|3 stop|start controller
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stop or start the controller controller. this
effectivly stops whole disk trays.
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vxrecover -s volume-name
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will start recovery on the volume volume-name
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vxrecover -s
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will start recovery on all volumes
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vxrecover -b volume
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this will bring the plexes bacl online. the -b means
background mode
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vxinfo volume-name
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usefull info about the volume. usefull if it wont come up.
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vxmake plex plex-name sd=sub-disk-name
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make a plex called plex-name using the subdisk sub-disk-name
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vxmake sd sub-disk-name disk-name,0,10000
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this will make a subdisk called sub-disk-name at
the beginning of the disk disk-name of size 10000 blocks.
if you wanted to put another sub-disk on this disk then you would have an offset of the size of the previous sub-disk ie 10000 e.g. vxmake sd sub-disk-name2 disk-name,10000,20000 |
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Daemons
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vxdctl mode / enable / disable
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When doing any disk configurations check that the vxconfigd
daemon is in the enabled mode. to check this use the command vxdctl mode
if it is not enabled enable it.
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vxiod
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This is the daemon that allows for extended I/O calls
without blocking calling processes.
As this is a kernel thread you cannot see it with ps hense you have to use the vxiod command to see if it is running. use the command vxiod set X to set the number of threads where X is the desired number (usually 10) |
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vxconfigd
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This is the main deamon and needs to be running all the
time. It is started at boot time.
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vxprint -ht
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You will get a display about the volumes something like :- Disk group: rootdg
DG NAME NCONFIG NLOG MINORS GROUP-ID
DM NAME DEVICE TYPE PRIVLEN PUBLEN STATE
V NAME USETYPE KSTATE STATE LENGTH READPOL PREFPLEX
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
dg rootdg default default 0 902269639.1025.taupo
dm disk02 c0t1d0s2 sliced 3590 17678493 -
dm rootdisk01 c3t5d0s2 sliced 3590 17678493 -
v rootvol root ENABLED ACTIVE 1027026 ROUND -
pl rootvol-01 rootvol ENABLED ACTIVE 1027026 CONCAT - RW
sd disk02-01 rootvol-01 disk02 0 1027026 0 c0t1d0s2 ENA
pl rootvol-02 rootvol ENABLED ACTIVE 1027026 CONCAT - RW
sd rootdisk01-01 rootvol-02 rootdisk01 0 1027026 0 c3t5d0 ENA
v swapvol swap ENABLED ACTIVE 2050461 ROUND -
pl swapvol-01 swapvol ENABLED ACTIVE 2050461 CONCAT - RW
sd disk02-02 swapvol-01 disk02 1027026 2050461 0 c0t1d0s2 ENA
pl swapvol-02 swapvol ENABLED ACTIVE 2050461 CONCAT - RW
sd rootdisk01-02 swapvol-02 rootdisk01 1027026 2050461 0 c3t5d0 ENA
v usr fsgen ENABLED ACTIVE 2050461 ROUND -
pl usr-01 usr ENABLED ACTIVE 2050461 CONCAT - RW
sd disk02-03 usr-01 disk02 3077487 2050461 0 c0t1d0s2 ENA
pl usr-02 usr ENABLED ACTIVE 2050461 CONCAT - RW
sd rootdisk01-03 usr-02 rootdisk01 3077487 2050461 0 c3t5d0 ENA
v var fsgen ENABLED ACTIVE 3073896 ROUND -
pl var-01 var ENABLED ACTIVE 3073896 CONCAT - RW
sd disk02-04 var-01 disk02 5127948 3073896 0 c0t1d0s2 ENA
pl var-02 var ENABLED ACTIVE 3073896 CONCAT - RW
sd rootdisk01-04 var-02 rootdisk01 5127948 3073896 0 c3t5d0 ENA
This says that in the group rootdg there are 4 volumes, those being rootvol, swapvol, usr and var. An example of a volume will be var. This says that the
volume is made up of 2 plexes called var-01 and var-02. In tern the plex var-01 is made up of the subdisk disk02-04 and the plex var-02 is made up of the subdisk rootdisk-04. The filesystem types of the volumes in this group are :- rootvol root (root filesystem) swapwol swap (swap file system) /usr fsgen (generic filesystem) /var fsgen (generic filesystem) other posssible filsystem types are gen and raid5 |
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vxprint -l volumename
or vxprint -vl or xvrpint -vt |
display information about volumes
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vxprint -l plex-name
or vxprint -lp |
display information about plex(es)
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vxprint -l diskname-??
or vxprint -st |
display information about Subdisks
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vxprint -t -v -e 'aslist.aslist.sd_disk="boot-disk-name"'
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list all the volumes on the boot disk boot-disk-name
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vxmksdpart -g rootdg diskpart 1 0x03 0x01
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Rebuild the partition table after recovering from a root
disk failure.
This is after re-mirroring the disk |
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