Expand LUN on Storage

[Lovro VRES]

Hello,

I have EVA storage and two integrity servers using for RAC. I have raw partitions for data files using LVM.
I need to create additional tablespace in my database. First I resize virtual disk on my storage so I can add additional logical volumes using lvcreate.

Now I have a problem. When I use SAM, the size of disk is still the same (additional space is not visable) and I cant create any additional logical volumes.

What should I do?

Regards.

[Steven E. Protter]

Shalom,

Usually you have to boot the system to get the new space recognized.

Sometimes ioscan will help, but not always.

SEP

[Sameer_Nirmal · Accepted solution]

You won't see the additional space at all even though you increased the Vdisk size at EVA side in HPUX. This is because HPUX doesn't support dynamic expansion/resize of the Vdisk likes Windows does.

So in your case, you need to create another vdisk and add it in the vg and then create lv out of it.

[Torsten.]

Hi,

the current HP-UX 11i versions 1 and 2 are not able to handle changing disk sizes.
You need to create a new vdisk, lvol and add it to your volume group.

[Lovro VRES]

OK, thanks, now I understand the point.
Should I use commands for Volume group expansion on all nodes in the cluster?
Which commands should I use for creating nev logical volume. I can use lvcreate on the first node, but how can I get device files on all other nodes?
Should I deactivated volume group on all nodes before I can add new logical volume?

Regards.

[Kevin Wright]

There is no need to reboot to see the disks/expand the space. ioscan,insf.

Most likely this is a shared VG right? If so, yes, you must de-activate the VG to make changes.. then pvcreate, vgextend, lvcreate, then go through your vgexport, vgimport process.