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RE: >1 TB RAID servers

To: "Daryl Herzmann" <akrherz@xxxxxxxxxxx>, <linux-xfs@xxxxxxxxxxx>
Subject: RE: >1 TB RAID servers
From: "Rivera, Angel R" <Angel.R.Rivera@xxxxxxxxxxxxxxxxxx>
Date: Thu, 25 Mar 2004 11:13:32 -0600
Sender: linux-xfs-bounce@xxxxxxxxxxx
Thread-index: AcQSirc6eJZIT5TQTQCh0cyCl0B2oQAAYimw
Thread-topic: >1 TB RAID servers
2.4 kernel should support 2TB.  

-----Original Message-----
From: linux-xfs-bounce@xxxxxxxxxxx
[mailto:linux-xfs-bounce@xxxxxxxxxxx]On Behalf Of Daryl Herzmann
Sent: Thursday, March 25, 2004 11:00 AM
To: linux-xfs@xxxxxxxxxxx
Subject: >1 TB RAID servers


Hiya,

I am intrigued by the message below by Eric.  I have 4 machines running
with XFS on kernel 2.4 with software-or-hardware RAID arrays well over 1
TB in size.  Have I just been lucky that the filesystems have not been
trashed itself yet?  Time to hug my backups even tighter!? :)

Thanks,
  Daryl


---------- Forwarded message ----------

------- Additional Comments From sandeen@xxxxxxx  2004-25-03 07:43 PDT
-------
The linux 2.4 kernel really can't handle > 1T block devices.  You're
probably seeing something wrapping around 32 bits and clobbering the
filesystem.  If you really need > 1T, use 2.6 with CONFIG_LBD enabled.
This is a core kernel I/O path issue, not oan xfs issue.


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