Ryan Corder wrote:
On Tue, Nov 10, 2009 at 10:13:20AM +0100, Michael wrote:

| quality of Adaptec cards. Any suggestions for a nice and not too
| expensive 32/64bit PCI hardware RAID card supporting RAID 5 and maybe
| even 6?

May I share a similar conversation that I had on this very mailing list,
except substitute Adaptec with 3ware?

http://marc.info/?l=openbsd-misc&m=122114552331372&w=2

Short story, if you need hardware RAID, buy an Areca.  It's rock, rock, rock
solid.  In fact, I just upgraded my box to 4.6, prior to the upgrade I was
running 4.3 on a degraded RAID1 -- one drive completely failed --for 5 weeks
without ever noticing (full disclosure, it was my own fault for not setting
up sensorsd to see the failure)!


--
Ryan Corder                  ||     () ASCII ribbon campaign
<ryanc at greengrey.org>     ||     /\  against HTML email
http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x1CB59D69

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I can't speak as to how they compare with mfi but +1 for Areca. Had an array and possibly a controller fail due to over heating and their support was great. Emailed in and got a guy on the phone from Taiwan the next day who talked me through steps to recover, for free.

Use the 4-port mostly for mirroring and 8-port for larger raid6 arrays. Works with bio/sensors.

# df -h
Filesystem     Size    Used   Avail Capacity  Mounted on
/dev/sd0a     19.7G    9.2G    9.5G    49%    /
/dev/sd0d      9.8G   98.8M    9.3G     1%    /var
/dev/sd0e      3.5T    3.0T    319G    91%    /storage
# bioctl arc0
Volume  Status               Size Device
 arc0 0 Online      3999999721472 sd0     RAID6
      0 Online      1000204886016 0:0.0   noencl <ST31000340AS SD15>
      1 Online      1000204886016 0:1.0   noencl <ST31000340AS SD15>
      2 Online      1000204886016 0:2.0   noencl <ST31000340AS SD15>
      3 Online      1000204886016 0:4.0   noencl <ST31000340AS SD15>
      4 Online      1000204886016 0:5.0   noencl <ST31000340AS SD15>
      5 Online      1000204886016 0:6.0   noencl <ST31000340AS SD15>


-noah

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