DUMP disk replacement

[Prashant Zanwar_4]

hi,
Situation, i want to replace a alerted dump disk..
- Do i do lvrmboot first on lvol
- vgreduce
- pvcreate
- lvlnboot

Is this ok?
thanks
Prashant

[Steven E. Protter · Accepted solution]

Shalom Prashant,

Is this dump disk all by itself, with nothing else on it?

pvdisplay -v /dev/dsk/c1t1do
# use a real c1... device

If it is truly alone

lvremove the logical volumes if you can.

then vgreduce
replace the disk
pvcreate
lvcreate
lvlnboot

Dump and swap sometimes do double duty.

Take it slow, and you may need to go to single user or lvm maintenance mode to do this.

SEP

[Pete Randall]

Is there anything else on this disk? Your procedure looks basically correct though a little incomplete. The lvlnboot command requires you to specify the logical volume for the dump volume, so you'll need to add vgextend and lvcreate to your list.


Pete

[Prashant Zanwar_4]

It is the only disk by itself and nothing else on it, neither it's mirrored..

1> lvrmboot
2> lvremove
3> vgreduce
4> pvcreate
5> vgextend
6>lvcreate
7> lvlnboot

This sounds good now..

[Devender Khatana]

Hi,

Yes these are the steps. But take caution of the arguments

With lvcreate

#lvcreate -n dump -L ??? -C y /dev/vgxx

With lvlnboot

#lvlnboot -d /dev/vgxx/lvol??

HTH,
Devender

[Chan 007]

PZ,

No need to mirror Dump disk. As how it is just waste of space. Bcoz your system will never crash...:-)

Why to waste one disk for it. Just check with crashconf -v and see what is included in dump and allocate that with additional 10% for It.

007