Date: Fri, 17 Dec 1999 10:02:57 -0500 (EST) From: David Gilbert <dgilbert@velocet.ca> To: Mike Smith <msmith@freebsd.org> Cc: David Gilbert <dgilbert@velocet.ca>, freebsd-current@freebsd.org Subject: Re: AMI MegaRAID datapoint. Message-ID: <14426.20641.329657.464545@trooper.velocet.net> In-Reply-To: <199912162354.PAA02071@mass.cdrom.com> References: <14425.2778.943367.365945@trooper.velocet.net> <199912162354.PAA02071@mass.cdrom.com>
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>>>>> "Mike" == Mike Smith <msmith@freebsd.org> writes: >> The AMI MegaRAID 1400 delivers between 16.5 and 19 M/s (the 19M/s >> value is somewhat contrived --- using 8 bonnies in parrallel and >> then summing their results --- which is not 100% valid)... but the >> MegaRAID appears to be stable. Mike> Hmm. Those numbers aren't so great though. I'd be interested Mike> to know how busy the controller is during your test (use systat Mike> -vmstat 1 and look at the amrd0 device), as well as how you've Mike> configured it. AMI's default configurations for those Mike> controllers is wildly inconsistent between one BIOS version and Mike> the next. Well... it's RAID-5 across the same 8 drives with all 8 drives on one LVD chain (same configuration as the other test). I have tried the 128k stripe, but it was slower than the default 64k stripe. >> I would like to know, however, if there are any planned or >> in-the-works utility programs for the amr device. In particular, a >> program to print the state of the array would be useful. Mike> I'm currently waiting on AMI for more documentation, at which Mike> point there will indeed be more monitoring and control Mike> facilities added. Dave. -- ============================================================================ |David Gilbert, Velocet Communications. | Two things can only be | |Mail: dgilbert@velocet.net | equal if and only if they | |http://www.velocet.net/~dgilbert | are precisely opposite. | =========================================================GLO================ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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