How to create volume group-steps

[Ajin_1]

Dear Sir

add a disk and How to create volume group? what are the steps installed.I'm beginner please explain step by step from physically connect the disk.

Thanks & Regards

AJN

[Johnson Punniyalingam · Accepted solution]

Request HW Vendor / Storage Team add "Psyical disk" Once done

# ioscam -fn
# ioscan -fnC disk

Once added / disk are shown claimed.

Procedure to Create "New Volume Group"

# pvcreate /dev/rdsk/cxtxdx -> man pvcreate for more Good examples

# ll /dev/*/group -> display all existing "Minor numbers" of your other volume groups
(you can't use duplicate minor number" you need to use next corresponding minor numbers
example if 01 -> exists you need use 02)

# mkdir /dev/vgname

# mknod /dev/vgname/group c 64 0x######

# vgcreate /dev/vgname -> man "vgcreate"

-p -s (options are very important) -> man vgcreate for options & Syntx

[James R. Ferguson]

Hi:

The HP documentation site holds a wonderful suite of excellent guides. I suggest you look at:

http://docs.hp.com/en/5992-6576/index.html

Regards!

...JRF...

[Steven E. Protter]

Shalom,

docs.hp.com

http://docs.hp.com/en/B2355-90692/index.html

V 2.0 VG
http://docs.hp.com/en/lvm-v2/L2_whitepaper_8.pdf

SEP

[Sp4admin]

You need to do a couple of steps.

# ioscam -fn
# ioscan -fnC disk
# pvcreate /dev/rdsk/cxtxdx * from the ioscan
# mkdir /dev/vgname
# mknod /dev/vgname/group c 64 0x######
# vgcreate /dev/vgname /dev/dsk/cxtxdx

I suggest you read some of the links that were provided so you get a good understanding on how to complete this task.

sp,

[Prasanth Thomas]

Hi,

Please let me know the version.
In v3 no need to create the dir and groupfile manually for new VG, just run the vgcreate.

<To avoid manually creating the volume group directory and the group file, use vgcreate. In this case, vgcreate automatically creates the directory and group file if they do not exist for this volume group.
Example
# vgcreate -s 8 -l 3 -p 16 -e 63535 /dev/vg01 /dev/dsk/c3t4d0
To select a particular volume group number or if you want to create the volume group the same way as in releases before March 2008, first create the volume group directory and the group file.
Example
# mkdir /dev/vg01
# mknod /dev/vg01/group c 64 0x010000
# vgcreate -s 8 -l 3 -p 16 -e 63535 /dev/vg01 /dev/dsk/c3t4d0 >>>

Regards,
Prasanth Thomas.