i for one would like to start the trend of ceasing to call these "RAID"
cards, since they aren't, and instead calling them exactly what they are,
storage device controller cards with an integrated -but for all intents and
purposes- outboard XOR Offload Engine (XOE).
XOE (zo-wee) cards are notorious for failing on you at the most inopportune
time. I 2nd Rafiu's recomendation to go with a complete RAID subsystem
which includes XOE, storage device controller, and data transport IO
processor all in one complete card. Or simply not use the XOE of the card
and use only the storage controller portion, relying instead on the RAID
support within the LVM2 component, which has been designed and vetted for
safety by considerably more testing than Promise' 5 beta testers in Taiwan.
That XOE can be a biotch ! =P
-=dave
----- Original Message -----
From: "Rafiu Fakunle" <[EMAIL PROTECTED]>
To: "Jim Kusznir" <[EMAIL PROTECTED]>
Cc: <[email protected]>
Sent: Friday, July 20, 2007 3:48 PM
Subject: Re: [OF-users] Getting I2O RAID to work
Jim Kusznir wrote:
Hi all:
After over a week of messing with OpenFiler, I think I'm finally close
to getting my hardware I2O RAID card working (Promise SX6000). I had
to upgrade the kernel, as the version shipping with OF has a bug in it
that breaks all I2O RAID cards. I don't need iSCSI target for now, so
I though tthis was acceptable.
Don't use i2o cards ;)
Stay away from anything named "Promise" or "Highpoint" if you want OF to
play nice with the RAID Controller.
Cards we tend to play better with are:
1) 3Ware / AMCC
2) Areca
3) LSI Logic / Intel
4) Adaptec
5) ICP Vortex
Now that I have it showing up in my system, things are close. The
problem is I2O raid devices are created in /dev/i2o/hd* (my case:
/dev/i2o/hda -- this is NOT the same disk as my system disk:
/dev/hda). So, under "Physical Volues", it does not see it, and thus
I can't partition or use it. I have verified that the volume itself
works by partitioning and formatting it directly. Both operations
completed sucessfully, verifying the raid drivers funcitionality.
So my question at this point is: how do I get OF to see the disk and
be able to create volumes and such. Or, if I partition and set up LVM
by hand, will it pick it up at that point? If so, what are its
requirements to make it seen?
Here's a patch to /opt/openfiler/sbin/list-disks.pl
--- list-disks.pl.orig 2007-07-20 15:18:22.000000000 -0700
+++ list-disks.pl 2007-07-20 15:26:24.000000000 -0700
@@ -123,6 +123,7 @@
close(MEDIA);
if ($media =~ /^disk/ && !$_[0]) {
push(@devs, "/dev/hd$n");
+ push(@devs, "/dev/i2o/hd$n");
}
}
}
R.
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