From owner-freebsd-questions Fri Jun 23 10:33: 8 2000 Delivered-To: freebsd-questions@freebsd.org Received: from sydney.worldwide.lemis.com (static82.conference.usenix.org [209.179.127.82]) by hub.freebsd.org (Postfix) with ESMTP id E5EAC37C3B5 for ; Fri, 23 Jun 2000 10:33:02 -0700 (PDT) (envelope-from grog@sydney.worldwide.lemis.com) Received: (from grog@localhost) by sydney.worldwide.lemis.com (8.9.3/8.9.3) id KAA00595; Fri, 23 Jun 2000 10:32:46 -0700 (PDT) (envelope-from grog) Date: Fri, 23 Jun 2000 10:32:46 -0700 From: Greg Lehey To: Jerry Dunham Cc: Jan Mikkelsen , freebsd-questions@FreeBSD.ORG Subject: Re: Tandem?? Message-ID: <20000623103246.B431@sydney.worldwide.lemis.com> References: <005401bfdcae$989f2510$0801a8c0@janm.transactionsite.com> <200006230124.UAA97545@freeside.fc.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0pre2i In-Reply-To: <200006230124.UAA97545@freeside.fc.net> Organization: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 WWW-Home-Page: http://www.lemis.com/~grog X-PGP-Fingerprint: 6B 7B C3 8C 61 CD 54 AF 13 24 52 F8 6D A4 95 EF Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thursday, 22 June 2000 at 20:24:09 -0500, Jerry Dunham wrote: > Jan Mikkelsen babbled: >> Date: Fri, 23 Jun 2000 11:01:43 +1000 > >> A quick search of the Tandem website revealed the document: >> >> http://www.tandem.com/misc/hpmlsm/hpmlsm.pdf >> >> which shows that they FCSd in 1995, and are an actively supported product. >> You might be able for find some documentation on the website. Tandem >> probably did custom firmware, but they do have machines with SCSI, so they >> should at least work. Good luck. > > Yes, Tandem did custom firmware for these IBM drives. My memory apparent- > ly failed me and I mentally swapped this drive with another I was thinking > was a huge pain to get working. Greg has reminded me that it was THIS one > that caused all the pain. It has worked without a hitch ever since, so it > can at least be said to be reliable once reformatted. Mine is attached to > an ancient Dell 486 via SCSI. And mine was one we used for drop testing, > so it had a hard life before it landed here. The real issue here is that the drives have a non-standard sector size--518, 520 or 524 bytes. You need to reset the sector size and low-level format the drives. Here's a reference ======================================================================== Yup, there's some other way to change it. Set the current values, then immediately issue a format command: # camcontrol cmd da1 -v -c "15 10 0 0 v:i1 0" 12 -o 12 "0 0 0 8 0 0:i3 0 v:i3" 512 # camcontrol cmd -n da -u 1 -v -t 7200 -c "4 0 0 0 0 0" # camcontrol modepage da1 -m 3 Tracks per Zone: 19 Alternate Sectors per Zone: 12 Alternate Tracks per Zone: 0 Alternate Tracks per Logical Unit: 38 Sectors per Track: 84 Data Bytes per Physical Sector: 512 Interleave: 1 Track Skew Factor: 13 Cylinder Skew Factor: 22 SSEC: 0 HSEC: 1 RMB: 0 SURF: 0 ======================================================================== RTFM for more details. Greg -- When replying to this message, please copy the original recipients. For more information, see http://www.lemis.com/questions.html Finger grog@lemis.com for PGP public key See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message