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тАО02-19-2004 01:05 PM
тАО02-19-2004 01:05 PM
I'd like to use 1gb to extend the root filesystem. My system has online JFS. I was wondering if there are any issues with just running the lvextend and fsadm commands like i would w/ any other filesystem. thanks,
jim
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тАО02-19-2004 01:36 PM
тАО02-19-2004 01:36 PM
SolutionUnfortunately thats not possible as the root filesystem needs to be contiguous.
The normal way to extend root is to make an Ignite-UX backup and then extend the root FS using Ignite-UX.
However its normally not necessary to increase root. A cleanup should usually clear some space. What is the current size of root filesystem??
Cheers
Con
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тАО02-19-2004 01:49 PM
тАО02-19-2004 01:49 PM
Re: new LVM user - question about extending the root filesystem
-jim
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тАО02-19-2004 02:04 PM
тАО02-19-2004 02:04 PM
Re: new LVM user - question about extending the root filesystem
Generally a root filesystem should not grow much. I'd generally size it at between 128MB - 256MB. If you have space issues, its generally because a file has been placed there that shouldn't be there or an application has dumped a core file.
A much more suitable FS for extending is /var.
My advice is keep the space available in the Vol Group until its needed.
Cheers
Con
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тАО02-19-2004 02:06 PM
тАО02-19-2004 02:06 PM
Re: new LVM user - question about extending the root filesystem
You can do this with a bit of tinkering. As mentioned, the logical volume that root resides in must be contiguous. If you have a seperate lvol for /stand and the root lvol is after the primary swap (i.e. it is lvol3) then you can move lvol4 (or whatever follows roots extents - see pvdisplay) to another part of the disk(s) and then lvextend lvol3 where it used to be. If part of this free space in vg00 is on another disk it is easy to move lvol4 - just use pvmove. If it is not (and it is a filesystem) then you may have to bring the system down to single user mode and do the copy there.
cheers,
James.
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тАО02-19-2004 02:20 PM
тАО02-19-2004 02:20 PM
Re: new LVM user - question about extending the root filesystem
jim
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тАО02-19-2004 05:39 PM
тАО02-19-2004 05:39 PM
Re: new LVM user - question about extending the root filesystem
Build up ignite tapes using make_tape_recovery.
From the tape you can re-build the system with allocating more space for the file systems.
There is a doc in the techbase
http://www2.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000062908171
Anyhow make sure you have your system images before proceeding further.