Thank for the input. I appreciate everyones help!
I believe I am going to end up not partitioning the raid array and using
it directly (as described in an email which I copied below).
When we get our next large storage machine in (we've are going to need a
couple over the next year to store CD & DVD ISO Images), I'm going to
experiment some more with the suggestions everyone has given me here.
As an FYI: I'm using the latest versions of everything (parted 1.7.1,
kernel 2.6.16, 3ware raid controller brand new)
Thanks for the help,
Chris....
Peter Grandi wrote:
>>>> On Thu, 31 Aug 2006 12:57:22 -0400, Chris Hane
>>>> <chrishane@xxxxxxxxx> said:
>
> chrishane> I am trying to create a 3.2TB partition on my Raid 5.
> chrishane> Is there a document that could help?
>
> The 9500 is fairly recent, so it should not have a lot of 2TB
> problems. But there are 2TB limits in several places. For example
> old versions of the Linux kernel don't support more than 2TB per
> _filesystem_.
>
> But I suspect that you are trying to create partitions in the
> sense of the MS-DOS/MS-Windows partitioning scheme. Check
> carefully whether that partitioning scheme allos partitions
> larger than 2TB :-).
>
> Anyhow, usually for very large filesystems you don't need
> partitions at all. Just use '/dev/sda'. Or check the other
> partitioning schemes supported by Linux, some may have higher
> limits.
>
> chrishane> I have a 3ware 9500 controller and 8 *500GB sata
> chrishane> drives configured into a single RAID 5 array.
>
> Using RAID5 with 8 drives is a great crime. Nothing to do with
> your partitioning problems, but since you mentioned it...
> Consider reading carefully <URL:http://WWW.BAARF.com/>
>
Rainer Krienke wrote:
Am Donnerstag, 31. August 2006 18:57 schrieben Sie:
I am trying to create a 3.2TB partition on my Raid 5. Is there a
document that could help?
I have a 3ware 9500 controller and 8 *500GB sata drives configured into
a single RAID 5 array.
I have a Raid with about 5TB and no problems creating an xfs filesystem on it.
The system is Novell SLES10 with a 2.6.16.21 kernel.
At first there was a problem with the raid. The firmware of the raid device
needed an upgrade. Bevore the upgrade I had a maximum of 2TB.
In dmesg (or /var/log/boot.msg on SLES10) you should see something like this
message if the device (sdc here) is handled correctly:
<5>sdc : very big device. try to use READ CAPACITY(16).
<5>SCSI device sdc: 10156243968 512-byte hdwr sectors (5199997 MB)
<5>sdc: Write Protect is off
<7>sdc: Mode Sense: cb 00 00 08
<5>SCSI device sdc: drive cache: write back
<5>sdc : very big device. try to use READ CAPACITY(16).
<5>SCSI device sdc: 10156243968 512-byte hdwr sectors (5199997 MB)
Bevore the firmware update there was an error when trying to read the capacity
via READ CAPACITY(16).
I created the partitiions using parted. fdisk did not work.
Have a nice day
Rainer
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