Online JFS

 
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chinsoon
New Member

Online JFS

Hi all,

Can HP JFS be shrunk online?

Thanks!

Rgds,
Chin Soon
8 REPLIES 8
Matthew_50
Valued Contributor

Re: Online JFS

off course, this can also be done by 'sam' on the fly.
Arunvijai_4
Honored Contributor

Re: Online JFS

Yes, It is doable.
"A ship in the harbor is safe, but that is not what ships are built for"
Marcel Boogert_1
Trusted Contributor

Re: Online JFS

Hi there,

Just use lvreduce and fsadm to shrink your filesystem.

Regards, MB
Rajesh SB
Esteemed Contributor
Solution

Re: Online JFS

Hi,

Online shrunk is possible if Online JFS is installed. Just using command

# fsadm -b 70000 /home

For example, suppose your VxFS file system now has a total of 90,000 blocks allocated.
However, you decide you really only need 60,000 with an additional 10,000 blocks for
reserve space. As a result, you wish to resize the file system to a new size of 70,000
blocks. Use fsadm with the -b option to specify the new size of the file system:

Regards,
Rajesh




Adisuria Wangsadinata_1
Honored Contributor

Re: Online JFS

Hi,

Yup, HP JFS can be shrunk online. As long as you have Online JFS software on your system.

Check the url below (docID : UFSKBRC00006760) about 'Differences between Base JFS and Online JFS' :

http://www2.itrc.hp.com/service/cki/search.do?category=c0&mode=id&searchCrit=allwords&docType=Security&docType=Patch&docType=EngineerNotes&docType=BugReports&docType=Hardware&docType=ReferenceMaterials&docType=ThirdParty&searchString=UFSKBRC00006760

Hope this information can help you.

Cheers,
AW
now working, next not working ... that's unix
Gavin Clarke
Trusted Contributor

Re: Online JFS

swlist -l bundle | grep -i online

Will tell you if you have Online JFS installed.

If you have, then use SAM or fsadm as the others have suggested.

Cheers.
Marcel Boogert_1
Trusted Contributor

Re: Online JFS

You can also use "fsadm -L 2048000 /home" where -L 2048000 is the value in kbytes.

Regards, MB.
chinsoon
New Member

Re: Online JFS

fsadm -L 2048000 /directory