From: Joe Georger (jgeorger_at_ll.mit.edu)
Date: Tue Nov 06 2007 - 16:18:53 CET
Message-ID: <473085DD.7000307@ll.mit.edu> Date: Tue, 06 Nov 2007 10:18:53 -0500 From: Joe Georger <jgeorger@ll.mit.edu> Subject: Re: [suse-sles-e] What is up with >2TB luns?
We are taking nearly 10 TB of data in a test.... The sponsor wants a
backup copy made - so 2 sets of disks for one raid unit were purchased.
I tried LVM, but it scares me. It does not like to move between
servers. Worse, try replacing one lvm volume with another. For
example, I configured disk set #1 to be 5 x 2 TB volumes. Created
filesystem, tested. Removed and replaced with disk set #2. Did the
same. Removed and replaced with set #1. Now nothing shows up
immediately. Using lvscan I see an inactive volume group. Activate it
and was able to mount it, use it. Now, replace set #1 with #2. NOTHING
shows up with lvscan. At this point lose confidence in lvm solution and
look for another one. I'll have to look into this GPT being mentioned....
Joe
Rainer Duffner wrote:
> In SLES9, I sliced together 4 1TB volumes of the Areca card via LVM.
> (too bad this driver will only be available in SLES10SP2
> http://www.areca.com.tw/news/2007/n0102.htm)
>
> I haven't had a chance to try with SLES10. But it seems the problem is
> still there.
> I don't know what is more frightening: the 3.6GB LVM or the same as a
> single formated LUN (how do you enlarge _that_?).
>
> What do you need it for, BTW?
>
>
>
>
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