On Thu, 29 Nov 2007, Ross wrote:

.... reformatted ...
> Might be off-topic slightly, but why not raid-z2?  We're looking at 
> a thumper ourselves and I'd be nervous of data loss with single 
> parity raid (I've had enough close calls with SCSI drives, let alone 
> SATA).

What do you mean by "let alone SATA"?

One of the *big* issues with (parallel bus) SCSI, is, and always has 
been, that a single "problem" SCSI device, could mess up the SCSI bus 
and cause all kinds of nasty, system level, errors.  And then there's 
the old saying: "all SCSI issues are (caused by SCSI) bus termination 
issues".  All this aside from the issues with routing/supporting heavy 
68-wire external SCSI cables and connectors.

I've personally (and professionally) been bitten by all 3 above 
scenarios - more than once!  IMHO, SATA point-to-point serial links 
are far more reliable than anything I could build with SCSI 
technology.

Thank goodness for SATA and SAS....

Regards,

Al Hopper  Logical Approach Inc, Plano, TX.  [EMAIL PROTECTED]
            Voice: 972.379.2133 Fax: 972.379.2134  Timezone: US CDT
OpenSolaris Governing Board (OGB) Member - Apr 2005 to Mar 2007
http://www.opensolaris.org/os/community/ogb/ogb_2005-2007/
Graduate from "sugar-coating school"?  Sorry - I never attended! :)
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