Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!bywater!acheron!archet!wlm From: wlm@archet.UUCP (William L. Moran Jr.) Newsgroups: comp.sys.ibm.pc.rt Subject: Re: Adaptec SCSI driver available (AOS only) Keywords: Device driver Message-ID: <344@archet.UUCP> Date: 7 Mar 90 08:00:29 GMT References: <725@vice2utc.chalmers.se> <1880@ursa-major.SPDCC.COM> <795@ns-mx.uiowa.edu> Reply-To: wlm@archet.UUCP (William L. Moran Jr.) Organization: A Desperate and Dedicated Crew Lines: 54 In article <795@ns-mx.uiowa.edu> jnford@jay.weeg.uiowa.edu (Jay Ford) writes: > > >Could somebody send me an address for Adaptec? They aren't in any phone book >around here, not even the AT&T 800 directory. > From tha back of the docu-book which adaptec supplies: 691 South milpitas blvd. milpitas, ca 95035 (408) 945-8600 >Also, are the Wren drives internal (in the RT disk bays) or external (separate >cabinet)? Is it necessary to retain at least one ESDI-type drive for booting? > Yes, the Wren SCSI disks are internal (they are standard form factor). Yes, you need one esdi disk to boot and swap from. Although it should be possible to swap from a scsi disk, it isn't working at the moment. >I have some pending calls for info on Wren & HP drives, but in case they don't >pan out I'd appreciate some info on the various drives: capacity (formatted), >speed (seek, transfer rate, etc), etc. Comments on service arrangements would >also be appreciated: cost, responsiveness, turn-around time, etc. The Wren VII formats to -> /dev/xt0d 786186 4 707562 0% /mnt4 /dev/xt0a 193865 78381 96097 45% /mnt3 =980051 M The Wren VI formats to about 600M as I recall. As for speed, the Wren VI gets slightly better throughput than the Wren VII, but the Wren VII does much better than ESDI disks. There is also a Wren V SCSI, as I recall it is in the range of 450M formatted, but I may be wrong. For example, I have observed about 400k/sec read performance with a Wren V running off of a (HESDI I think). The last time I looked, I was getting about 800k/sec read performance from a Wren VII. HP has announced a 1.6G disk which supposedly has a 150000 MTBF rate and a five year warranty, but they aren't being delivered yet. Seagate/Imprimis is also talking about bigger and better disks (the Wren VIII) Bill -- arpa: moran-william@cs.yale.edu or wlm@ibm.com uucp: uunet!bywater!acheron!archet!wlm or decvax!yale!moran-william ------------------------------------------------------------------------------- "Every man has his weakness." Pause. "Mine," added Doc, "is bestiality and Baskin-Robbins girls." The Monkey Wrench Gang - Edward Abbey