From: Ron Joffe (rjoffe_at_yahoo.com)
Date: Wed Nov 21 2007 - 20:23:51 CET
From: Ron Joffe <rjoffe@yahoo.com> Date: Wed, 21 Nov 2007 14:23:51 -0500 Message-Id: <200711211423.51281.rjoffe@yahoo.com> Subject: Re: [suse-sles-e] Re: What is up with >2TB luns?
Alexi,
In my case where I have 6 1TB drives, I can easily create 3 x 1TB RAID 1
containers and stripe them together utilizing LVM.
This works perfectly well, however, the onboard RAID 10 solution has some
performance advantages. As this is not a very complicated situation, I fully
expect SLES to be able to handle this.
Again, my main concern is that Novell is not supporting what I consider to be
a very simple configuration. They need to support GPT labels and grub on GPT
natively in SLES.
Ron
On Wednesday 21 November 2007 14:13, Alexei_Roudnev wrote:
> I can't image any case, when I need > 2 TB device for the boot file system.
>
> If it is local disk - disks are smaller then 2 TB. If it is LUN from SAN
> storage - you can always partition storage in SAN system
> and allocate 1 smaller LUN for OS and 1 bigger LUN for other purposes.
>
> So, OS boot should not be a case; partitioning of the 2 TB LUN-s can be
> worked around by LVM and EVMS, BUT LVM or EVMS MUST work with LUN-s > 2 GB.
>
> SLES9 yast2 does not support LVM over the unp[artitioned disk, btw, which
> create some (minor, fortunately) problems.
>
> PS. I recommend do not create LUN's > 2 TB at all. Create a few smaller
> LUN's, and use LVM or EVMS to create a big volunes (but if it does not
> work, it is a serious concern! )
>
> Normal case is:
>
> Lun0 - 30 GB, for the system
>
> Lun10, Lun11, ...:un19 - each 1 TB size, for the data.
>
> Grouped into the volume group
> Used to allocate logical volumes.
>
> It allows easy adding disk space on-line (just add new LUN and resize
> logilca volume online).
-- Ron Joffe Siena Tech, Inc. 120 Old Bridge Lane Chapel Hill, NC 27517 (919) 928-0404 --------------------------------------------------------------------- To unsubscribe, e-mail: suse-sles-e-unsubscribe@suse.com For additional commands, e-mail: suse-sles-e-help@suse.com
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