Date: Fri, 1 Jun 2001 13:21:32 +0200 From: andreas.klemm.ak@bayer-ag.de To: freebsd-scsi@freebsd.org Subject: need complete not too expensive RAID 5 solution for FreeBSD 4.3 Message-ID: <OF6DC90062.48492479-ONC1256A5E.003D23F7@bayer-ag.com>
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Hi !
Could some kind soul help me designing an expensive but good
SCSI RAID solution ? Its the only FreeBSD system but I hope I can
attract customer ....
Want to build up a not too expensive RAID system for my customer.
FreeBSD machine currently is a 4.0-20000715-STABLE machine,
which will be upgraded to FreeBSD 4.3-STABLE soon.
Currently I have an Adaptec Wide SCSI controller builtin:
ahc0: <Adaptec 2940 Ultra SCSI adapter> port 0xf400-0xf4ff mem 0xfedfe0=
00-0xfedf
efff irq 7 at device 19.0 on pci0
ahc0: aic7880 Wide Channel A, SCSI Id=3D7, 16/255 SCBs
I want a separate RAID controller in a separae case, which offers
hot plug capability and optional hot spare disk. I want to connect the
external raid tower to the Adaptec like a separate disk.
I think of 3 disks doing RAID level 5 and perhaps one "hot spare" that
automatically jumps in, if one disk is misbehaving. There should be
a possibility, that one gets an hearable warning or over another notifi=
cation,
so that you can automate the process of notifying administrator via e-m=
ail.
I=B4m looking for a complete solution, which I can buy in Germany, if i=
ts
possible.
If not possible, then single components. One SCSI channel would already=
be satisfactory, dual channel would be o.k. as well.
Any help would be highly appreciated.
Andreas ///
=
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