moving shared disks between servers

[JOHN TURNER_2]

We have two RP5400 servers connected to a FC60 disk array as a test bed. We want to move some of the disks from one server to the other without preserving the data.

Is there a document on the HP document search or an easy way to do this.

Cheers
John

[Steven E. Protter · Accepted solution]

Shalom John,

If possible:
vgexport the volume group that includes the disks.

or vgreduce the disks out of the volume group they are in.

Then


Then move them and add them to the new location.

ioscan -fnC disk should detect them

pvcreate them

vgextend a volume group to include them.

done.

SEP

[Muthukumar_5]

See this:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=47108

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=234594

--
Muthu

[Devender Khatana]

Hi,

ON the existing server using the disks do

1. Umount all the LVOLs belonging to these disks.

2.vgexport the VG.

3. Remove zoning for giving access to this host and allow access to second host.

On the second host do

1. Find if the new disks are accessible in
#ioscan -fnC disk

If yes create device files for the same.

2. pvcreate them using -f option as these allready have VG information.

3. Create new vg on these disks using vgcreate.

4. Create lvols in the new VG using lvcreate command. Then create file system using newfs commands. Now mount these on desired mount points and make entries in /etc/fstab.

HTH,
Devender

[Arunvijai_4]

Hi John,

Doing a quick search at ITRC will bring up many threads, here is one more

http://forums1.itrc.hp.com/service/forums/parseCurl.do?CURL=/cm/QuestionAnswer/1,,0x0cbacc84e9bb7d4a8a9c7587a773dae3,00.html&admit=716493758+1066312761789+28353475

-Arun

[Tvs]

Hi,

ON the existing server
a. unmount the volume
b.vgexport /dev/vg01
c. if it is hot swapable remove the disk.
On the second
a. plug the disk
b. check the disk detetced ioscan -fnC disk
c. pvcreate -f ( rawdisk )

and the normal procedure for creating the vg
regards

tvs

[JOHN TURNER_2]

All thanks for the replies, but we have decided to go down a different approach and i would like some more information.

We now want to split the luns on the array into two JBOD's and run without a mirror. A mirrored copy is not overly important as it is only a testbed server.

If anyone could provide some information into how to go about this it would be much appreciated

Thanks

john

[Alzhy]

You will have to inquire from the FC60 documentation if such is even possible - if you can collapse LUNS/RAID and run the FC60 as a JBOD.