Can I add one pair HDD (mirror) to existing VG00

[SSKong_1]

Hi,

I would like to know is it possible to add a pair of disk (mirror) to existing VG00 (mirror) for RP7410?

Appreciate if you could provide the steps.

Thanks.

[freddy_21]

its possible.

pair of your new disk bigger than existing disk?

if bigger than existing disk, you must consider about max pe per pv.

my suggestion. create new vg for your data. split it with your OS.

thanks
freddy

[RAC_1]

I am not able to understand your question. What exactly you are trying to do?

[SSKong_1]

RAC,

Currently, the VG00 have a pair of 36GB (mirror) disk. Now, we plan to add another pair of 36GB to VG00.

Is it advisable to perform this ?

Any comment.

[Luk Vandenbussche]

Hi,

it is perfectly possible.
Internally you can install 4 disks in an rp7410

[freddy_21]

1. pvcreate a new disk
pvcreate -f /dev/rdsk/cxtydz

2. extend disk vgextend /dev/vg00 /dev/dsk/cxtydz /dev/dsk/....

3. create lvmpvg file
vi /etc/lvmpvg
example:
VG /dev/vg00
PVG PVG0
/dev/dsk/c2t0d0
/dev/dsk/c2t1d0
PVG PVG1
/dev/dsk/c3t0d0
/dev/dsk/c3t1d0
pvg0 is all your primary disk
pvg1 is all your mirror disk

4. vgdisplay -v vg00
you can see lvmpvg at bottom from your output.

5. create lvol

thanks
freddy

[RAC_1]

while you may be able to add disks in vg00 (provided there are no hardware limitations), why you want to add them in vg00? you can prepeare seperate vg for that. Managing it would be easy.