6.0 RELEASE and Volume Managers
matthias.andree at gmx.de
Sun May 7 09:34:30 UTC 2006
Yousef Raffah <yraffah at savola.com> writes:
> I'm trying to install a new server which has a hardware RAID controller.
Hardware RAID controllers such as amr(4) or twe(4) (I've seen LSI
MegaRAID SCSI 320-1 and 3Ware Escalade 8006-2 LP, the latter is a 2-port
SATA controller and can't do RAID5 for lack of ports) stuff usually
presents a whole logical unit as a single SCSI drive (/dev/da0 for the
first disk array, /dev/da1 for the second and so on), so you shouldn't
need vinum, geom or anything like that - just the driver would suffice.
If you need vinum or geom to implement a RAID then chances are your
so-called "hardware RAID" is actually fake (fakeraid) and really
software RAID. Adaptec "HostRAID" and the RAID in intel's ICH x-R
chipsets falls into this fakeraid category. The vendors don't like to
present it as software RAID, so that particular bit is extremely hard to
What is the brand and model of your so-called hardware RAID?
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