[suse-sles-e] Re: What is up with >2TB luns?

From: Joe Georger (jgeorger_at_ll.mit.edu)
Date: Wed Oct 31 2007 - 20:14:47 CET


Message-ID: <4728D427.4020601@ll.mit.edu>
Date: Wed, 31 Oct 2007 15:14:47 -0400
From: Joe Georger <jgeorger@ll.mit.edu>
Subject: [suse-sles-e] Re: What is up with >2TB luns?

I'll give some info on my own question.... You can go into Yast and
work with the raw devices in lvm. Or you can put a filesystem on a raw
device. I was just using a spare 80 GB hard drive as I had reconfigured
the raid mentioned below into 5 x 2 TB partitions and used lvm to paste
them back together..... Unless someone gives me a good reason not to, I
might try reconfiguring it again to be one giant volume.

Since the 80 GB drive had previously been partitioned, mkfs.xfs warned
me about that and suggested I use -f to force it. So I did, mounted it
up and was able to work with it.

Both approaches do not use the partition table at all. I don't think
this would be a problem for storage other than the system disk. Any
comments?

Joe

-------- Original Message --------
Subject: What is up with >2TB luns?
Date: Tue, 30 Oct 2007 08:54:22 -0400
From: Joe Georger <jgeorger@ll.mit.edu>
To: suse-sles-e@suse.com

SLES10 SP1 x86_64 - I have a 10 TB raid unit, formatted as a single
volume. When I try to create a filesystem on it, Yast is giving me an
error message that the msdos disk label can only support 256K cylinders
(I need ~1.3M) which ends up being 2 TB. Are we not beyond this
already? Single disks will probably grow beyond 2TB in the next 2
years.... Is there any way around this?

Thanks,
Joe

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