Date: Fri, 1 Nov 2002 20:47:35 -0500 (EST) From: "Michael L. Squires" <mikes@siralan.org> To: ANYBODY <somebody@kashmir.etowns.net> Cc: FreeBSD SCSI <freebsd-scsi@freebsd.org> Subject: Re: adaptec ahc : seagate da : current Message-ID: <200211020147.gA21lZ5B061556@siralan.org> In-Reply-To: <20021102003806.GA1664@hurd1.kashmir.etowns.net> "from ANYBODY at Nov 1, 2002 04:38:06 pm"
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I'm running 4 ST410800WD's (HV diff version) on a DPT SmartRAID IV under 4.7-STABLE. These are obviously Sun rejects. In the past they were connected with an Adaptec 2944UW controller, no problems. On a second system I have ST423452W and ST446452W (apparently EMC RAID rejects) on a Supermicro P6DGH with onboard Adaptec 7896/97 U2 controller. I did do a low level format of all the drives, using SCSITOOL to format all 9 at once on the newer box. For the ST410800WD: # camcontrol tags da0 -v (pass0:ahc0:0:3:0): dev_openings 64 (pass0:ahc0:0:3:0): dev_active 0 (pass0:ahc0:0:3:0): devq_openings 64 (pass0:ahc0:0:3:0): devq_queued 0 (pass0:ahc0:0:3:0): held 0 (pass0:ahc0:0:3:0): mintags 2 (pass0:ahc0:0:3:0): maxtags 255 The output for the other two drives shows 253 dev_openings and devq_openings, otherwise the same. Other than being about 50% dead out of the box the drives work fine. The 5 23GB drives are 1 vinum RAID5 array, the 4 46GB another RAID5 array. Performance is pretty snappy for old drives, and the fault tolerance works well (I've already tried removing, reformatting, and reinstalling a drive). Mike Squires UN*X at home since 1985 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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