Add a Hard Drive to HP Unix Server 11.0

[nfpc_1]

Hi,
I am seeing a hard disk as a part of a vol group (vg03) but does not show up as part of the logical volume(lvol1) on the volume group.
Can I add the disk to lovl1 without having to reboot the system?
This is a production system and there is data already on the disks that are part of lvol1.
Can I use SAM to do this?
Thank you all.
A/A

[Robert-Jan Goossens]

Hi,

Yes if lvol1 is part of vg03.

Could you post the output of "vgdisplay -v vg03"?

Regards,
Robert-Jan

[Steven E. Protter]

Shalom,

This operation does not require a reboot assuming the disk is already installed. If its a hot swap for sure, no reboot required.

You can use sam, but should not.

ioscan
insf -C disk
insf -e
pvcreate
vgextend vg03
lvextend /dev/vg03/lvol1

umount the file system then: extendfs
or
fsadm -b

SEP

[Matti_Kurkela]

Yes, you can add some or all of the capacity of the new PV into any LV that belongs to the same VG. No reboot is needed for this LVM-level operation. The command you need is "lvextend".

If your /dev/vg03/lvol1 contains a filesystem, the next step after extending the LV is extending the filesystem. No reboot is needed, although you *may* have to stop the application on the LV and unmount the filesystem to run the extension.

If it contains something else (like a raw database), then some application-specific operations may be needed.

In HP-UX 11.00, the default filesystem type is VxFS. It can be extended while the filesystem is mounted, if you have the optional OnlineJFS product installed. If you have it, the command is:

fsadm -F vxfs -b

If you don't have OnlineJFS or the filesystem type is HFS, you must stop the application and unmount the LV. The command to extend the filesystem is "extendfs" in this case:

umount /dev/vg03/lvol1
extendfs /dev/vg03/rlvol1
mount /dev/vg03/lvol1

I don't remember if SAM can do on-line filesystem extensions, because I always do them on the command line. Sorry!

MK

[nfpc_1]

Thanks everyone for your responses. I am uploading the vgdisplay output..

[nfpc_1]

I dont have JFS installed and there are users connected to the applications running on the server.
thx

[nfpc_1]

Actually, I did a grep as below this...
swlist -l product |grep Online
and found this..
PHKL_22393 1.0 VxFS 31 OnlineJFS cumulative patch

Dont know if that means it is installed.

[nfpc_1]

so my command would be
fsadm -F vxfs -b /dev/vg03/lvol1
??

[nightwich]

Hi nfpc


First you need to check if the disk is installed on the system:

ioscan -funC disk


Second you need to add it to the vg03:

vgextend /dev/vg03 /dev/dsk/c1t4d0

Then you need to increase you logical volume:

lvextend -L 400 /dev/vg06/lvol3


Then if you have on-line JFS:

swlist | grep -i jfs


You need to extend your FS:

fsadm -F hfs -o largefiles -b 400M /mount_point


If you do not have on-line JFS

You need to un-mount the FS ( downtime is needed )

And use extendfs:

xtendfs -F hfs /dev/vg00/rlvol1


I think this should clear your doubts.

Regards