HP-UX mirror disks

[Sharma Sanjeev]

Hi Again

You need to use

newfs -f vxfs -o largefiles /dev/vgtest/rlvoltest


rlvoltest not lvoltest

Regards
Sanjeev

[Sharma Sanjeev]

Hi Again

Sorry for last post it should be

newfs -F vxfs -o largefiles /dev/vg01/rlvoltest

Regards
Sanjeev

[Mel Burslan]

newfs requires the raw device file, so you will use

newfs -f vxfs -o largefiles /dev/vg01/rorau8

[Sharma Sanjeev]

You need to use ( upper case ) -F with newfs not -f

Regards
Sanjeev

[unix adm]

Hi Andrew,

I am sure you would have done with this by now, sorry about the small silly mistakes in the command syntax, allow me to type it all over again to make sure you have got correct procedure for this in one shot.

Considering following info

Volume Group Name - vgtest
Logical Volume name - lvoltest
Logical volume size - 20480 MB (20 GB)
Disk 1 - /dev/dsk/c4t4d0
Disk 2 - /dev/dsk/c4t5d0


Steps to create new vg
###################

#Verify if these disks are not the part of any volume group already


strings /etc/lvmtab |grep -i c4t4d0
strings /etc/lvmtab |grep -i c4t5d0

(above commands should come out without any output, if it is coming with the disk name means this disk is already being used for some other VG, in this case verify and use another disk which is free on the system)

pvcreate -f /dev/rdsk/c4t4d0
mkdir /dev/vgtest
mknod group c 64 0X020000
(minor number 0X020000 make sure it is unused, if used just use successive number 0X030000)

you can check it by running below command

ls -al /dev/*/group

crw------- 1 root sys 64 0x010000 May 28 17:39 /dev/vg01/group
crw-r----- 1 root sys 64 0x000000 Feb 26 11:06 /dev/vg00/group


vgcreate -l 255 -p 255 -e 5000 -s 64 /dev/vgtest /dev/dsk/c4t4d0
lvcreate -L 20480M -n lvoltest /dev/vgtest
newfs -F vxfs -o largefiles /dev/vgtest/rlvoltest
mkdir /test
mount /dev/vgtest/lvoltest /test

#take backup of /etc/fstab
cp /etc/fstab /etc/fstab_backup

# Appen below entry in fstab to be able to mount this file system after reboot.

/dev/vgtest/lvoltest /test vxfs delaylog,largefiles 0 2

run command confirm any syntax error in the entry you have added in /etc/fstab

#mountall

#vgcfgbackup vgtest
(To create/update LVM volume group configuration backup file, this you may need if there is any corruption of vginfo on any disk)

Mirroring (RAID 1)
####################

pvcreate -f /dev/rdsk/c4t5d0
vgextend /dev/vgtest /dev/dsk/c4t5d0
lvextend -m 1 /dev/vgtest/lvoltest /dev/dsk/c4t5d0
Once completes u can check using , look for mirror copy details.
lvdisplay /dev/vgtest/lvoltest

Thanks
Rajeev

[Torsten.]

See also your other thread:

http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1359248