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! :) _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss