Increasing disk size

[Amanda Deer]

O/S - Tru64 V5.1A, TruCluster

We connect to a SAN for our storage and we need to increase the size of our disks. Is it just a case of ncreasing the allocated storage at the SAN end and changing the disklabel on the Tru64 server to show the new size??

[Vladimir Fabecic]

Read this:
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=957084

and also this:
http://forums1.itrc.hp.com/service/forums/helptips.do?#28

[Ivan Ferreira · Accepted solution]

Yes. Or you can create a new DISK/LUN and use a multivolume domain.

[Amanda Deer]

I have done the disklabel ok, but when I try to use the extend option of mount it says -

WARNING: unknown option extend ignored

Am I doing this wrong?

[Venkatesh BL]

Use the mount command with the extend option to make the increased partition space available to the file system as follows:

# mount -u -o extend mnt_point

Check out the manpage of 'mount' for more info.

[Amanda Deer]

The man page says the command is only used for UFS. Tried it anyway and got the same error. What command do I use for AdvFS?

[Ivan Ferreira]

The man page does not tells that is only available for UFS, it does reference UFS for something specific. Is the same option for ADVFS. You can consult the ADVFS quick reference if you want to be sure.

Last time I tested, we had to umount the files system, run disklabel, and mount with the -o option.

[Amanda Deer]

The man page on V5.1A does say - The following arguments are valid only for UFS.

Any other ideas?

[Venkatesh BL]

The "WARNING: unknown option extend ignored" message means that your 'mount' command doesn't recognize this option at all. I wonder if you are running a old patch version that does not contain 'mount' with the 'extend' option.

Are you sure you see the 'extend' option on that system's 'mount' manpage?

What is the patch version?

[Amanda Deer]

The extend option is on the man page, but only for UFS. We are running V5.1A patchkit 6.

[Ivan Ferreira]

Yep, the man page description for the extend option is different on 5.1A and 5.1B. We tested on 5.1B.

You can create a new vdisk and use the addvol command to extend the capacity. But, now that you increased the disk space with disklabel, maybe you will have to destroy and re-create the file system.

Also, in the Advfs quick referece says that "extend" is a new feature in advfs 5.1B.

[Michael Schulte zur Sur]

Hi,

how far is this problem?
Have you solved it?

greetings,

Michael

[Amanda Deer]

I had to restore the data from a backup. Thanks

[Michael Schulte zur Sur]

Amanda,

I noticed that your point assignment rate is rather low. Remember, most here are not HP employees and spend their time, trying to help other people. For this the point system was created. See http://forums1.itrc.hp.com/service/forums/helptips.do?#28

thanks,

Michael

[Adam Garsha]

I see one of my cases linked.

You can increase size via EVA Vdisk expansion on Tru64 5.1B-3=5.1B+pk5 (and propigate it with disklabel, followed by the mount +arguments). I would NOT do it below that revision level.