opinion on which software RAID to use

[Helge.Oldach at atosorigin.com]

Vivek, 

Frankly, for smaller, desktop-sized boxen I prefer atacontrol. Once set up at installation time, it just works. I even managed to hotswap drives on certain ATA controllers, provided that the drives are on different channels.

On the server end, I still prefer SCSI-based hardware RAID.

YMMV.

Helge

-----Original Message-----
From: owner-freebsd-stable at freebsd.org [mailto:owner-freebsd-stable at freebsd.org] On Behalf Of Vivek Khera
Sent: Thursday, March 02, 2006 8:12 PM
To: stable at freebsd.org
Subject: opinion on which software RAID to use

I have a stack of new boxes here with two SATA drives on which I plan  
to do software RAID.  The box actually has a hardware RAID but it is  
somehow disabled since I didn't pay extra for it... I can access the  
BIOS and set up the RAID volume but it fails at boot.  So they are  
configured as individual disks.  The boxes are Dell PowerEdge 1425SC.

Anyhow, I see at least three ways to set up a mirror of these drives  
and/or partitions:

  gvinum
  gmirror
  atacontrol

Any opinions on which has both qualities: easy to configure/manage  
(ie, recover after failure) and performance?  The handbook RAID page  
doesn't even mention gmirror.  The atacontrol seems very simple to  
use, at least.

Let me know what you think.  Thanks!

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