Comments on: Aventures in storage land - damned if you do, damned if you don’t…

By: ghosh

ghosh — Fri, 22 Dec 2006 04:03:49 +0000

Try running Red Hat GFS for large filesystems (50-60TB in production) or wait for RHEL4.5 - ext3 with 16TB

By: mark

mark — Fri, 08 Sep 2006 21:48:02 +0000

RHEL 3 had JFS support, yeah, but it appears they pulled it out for RHEL 4.

By: Chris Adams

Chris Adams — Fri, 08 Sep 2006 18:01:29 +0000

Doesn’t RHEL include JFS support? Our lone RHEL box has mkfs, tunefs, etc. for JFS.

By: mark

mark — Fri, 08 Sep 2006 16:53:31 +0000

Yeah, SUSE has Reiserfs and XFS, both properly supported.. In general, though, we stick with RHEL/CentOS (or Solaris) and try to keep the environment as consistent as possible.

By: zdzichu

zdzichu — Fri, 08 Sep 2006 12:02:53 +0000

Oh, and if you really feel the need to go with “enterprise” Linux, Novell’s SUSE always promoted Reiserfs, so it is properly supported.

By: zdzichu

zdzichu — Fri, 08 Sep 2006 07:08:56 +0000

There are few more Linux filesystems that support bigger devices. JFS or Reiserfs3. ext3 is pretty old, that’s why ext4 is being worked on (http://lwn.net/Articles/190169/). There are also patches floating for lifting ext3 limit to 16TB. But you won’t get them nor ext4 in RHEL for next five years.

By: mark

mark — Fri, 08 Sep 2006 01:17:32 +0000

Ah, interesting, Fazal. Solaris 10 Update 1 (and beyond, presumably - I believe I was testing with the nevada build that became Update 2) no longer appear to use the “amr” driver for the builtin controller in the v20z. Or perhaps different revisions of the v20z use different versions of the LSI MegaRAID controller?

James: Thx for the correction. “mpt” it is. I’ve corrected the post. On Linux they’ve had a few adventures with the mpt driver too, where they ended up splitting the driver into a bunch of different modules to handle the various controllers and hbas available. mptbase, mptscsi, mptsas, mptfc, etc..

By: Fazal Majid

Fazal Majid — Fri, 08 Sep 2006 00:15:18 +0000

My company has been running a Sun V20z with Solaris 10, the Apple/LSI FC HBA and a XServe RAID as its main internal server for over a year now. We don’t boot from the XServe RAID, but there is no conflict with the boot drive and the driver for the FC HBA is itmpt, not ipt.

%pkginfo|grep -i LSI
system ITImpt LSI Logic FusionMPT(tm) drivers
system SUNWamr LSI MegaRAID SCSI HBA Driver

By: James C. McPherson

James C. McPherson — Thu, 07 Sep 2006 23:40:22 +0000

Oh boy, that sounds like a conversation I was involved with a few weeks back. BTW it’s the mpt driver (which I wrote a few bugfixes for last year).

I think it’s way past time for you to log an RFE requesting that the mpt driver be updated to include support for LSI’s fc hbas.