SUMMARY: need to replace hard drive in ultra 1

Hello Everyone,

Short Version of my quesion: need to replace an (external) hd on an
Ultra 1.  I forgot to mention that it was external in the original
post.

Summary:  The answers were GREAT, and fast. THANKS!  In short I _think_
all the drives I listed _should_ work.  The only real concern is HEAT.
I failed to mention that this was a disk in an external case.  So, in
this case heat will not be a concern.  I will recommend the ST318438LW,
the 7200rpm unit.  It's cheaper and will generate less heat.

There's lots of good info in the replies, including a pointer to sun
supported drives.  I've listed the original message with the replies
below.

Special thanks to  Hichael Morton, Allan West, and Dirk Jansen for
their replies.

odk
--
Oscar D. Knight                                     knightod@appstate.edu
Network Support Services                              Voice: 828-262-6946
Appalachian State University, Boone, NC 28608           FAX: 828-262-2236
=========================================================================

Original Post
=============
> Date: Tue, 20 Aug 2002 12:15:29 -0400 (EDT)
> From: Oscar Knight <knightod@appstate.edu>
> To: sunmanagers@sunmanagers.org
> Subject: need to replace hard drive in ultra 1
>
> Hello Everyone,
>
> I'm trying to assist someone with an Ultra 1 box.  They had a HD failure,
> an ST39173W, Seagate Barracuda.  I can't find an ST39173W to replace it.
> It has a 68pin connector.  They are running Solaris 7.
>
> If anyone can answer ANY of the following it would be helpful.
>
>   Can anyone suggest an 18Gig, ...  that will work?
>
>   Will a  ST318406LW  Seagate 18.4GB 10Krpm Cheetah  work?
>
>   Will a  ST318438LW  Seagate 18.4GB 7.2Krpm Barracuda  work?
>
>   Will a  ST318452LW  Seagate 18.4GB 15Krpm Cheetah  work?
>
>   Will a  ST336706LW  Seagate 36.9GB 10Krpm Cheetah  work?
>
>     (BTW, I'm not hung-up on Seagate, I just researched the old drive
>      and  then picked Seagate drives that I thought would work.)
>
>   Can anyone indicate what the general requirements are for a replacement
>   drive?
>
> THANKS in advance,
> odk
> --
> Oscar D. Knight                                     knightod@appstate.edu
> Network Support Services                              Voice: 828-262-6946
> Appalachian State University, Boone, NC 28608           FAX: 828-262-2236


Replies
========

> Date: Tue, 20 Aug 2002 09:44:36 -0700 (PDT)
> From: Hichael Morton <mh1272@yahoo.com>
> To: Oscar Knight <knightod@appstate.edu>
> Subject: Re: need to replace hard drive in ultra 1
>
> You should check your hard drive.  The original drives for Ultra1's
> were 80-pin, SCA hard drives NOT 68-pin hard drives.
>
> The ST39173WC will work as will the other WC drives.  All of these have
> an 80-pin, SCA connector.
>
> eBay.com is a good place to "pick-up" SCA hard drives (new and used;
> Sun, Seagate, IBM, Fujitsu, etc.).  My preference is Sun or Seagate.
>
>
 ------------------------------------------------------------------------
> Date: Tue, 20 Aug 2002 13:17:28 -0400
> From: Allan West <allan@clas.ufl.edu>
> To: Oscar Knight <knightod@appstate.edu>
> Subject: Re: need to replace hard drive in ultra 1
>
> I'm assuming you're talking about the internal drive bay of the
> Ultra-1...
>
> Ultra-1's generally have an 80-pin connector, not 68-pin, since the
> drives connect using the hot-swap brackets similar to the server line.
> I've bought 18GB Seagate drives and swapped them with no problem. The
> requirements are:
>
> a) 1" high, also called 1/3 height or low-profile, often Seagate
>    model numbers ending in "LC"
> b) 80-pin connector which carries 68-pin SCSI as well as SCSI ID
>    selector and power to the drive
>
> I buy my drives from basoncomputer.com and dcdrives.com most of the
> time.  BasonComputer has relatively helpful staff. When you get the new
> drive, just put it in the bracket the current drive is in and pop it
> back into the machine.
>
> I find Seagate drives reliable. You won't want to put more than one hard
> drive inside the machine if you go with 18GB or greater, since the case
> isn't rated for the heat load.
>
> I can't comment on any of the models you listed because I don't have the
> conversion to physical characteristics, but I'd get a 7200 RPM drive
> unless you're running a database or similar high-access usage. They're
> cheaper, and still faster than the original 5400 RPM drives.
>
> Let me know if you have any questions about this information. Allan
>
>
 ------------------------------------------------------------------------
> Date: Tue, 20 Aug 2002 19:16:10 +0200 (MEST)
> From: Dirk Jansen <dirk@abcomp.be>
> To: knightod@appstate.edu
> Subject: Re: need to replace hard drive in ultra 1
>
> Hi Oscar,
>
> Officially, none of those is supported (but the 9Gb that was inside is
> also not supported)
> I would go for the ST318438LW (because it's a 7.2Krpm) and I think
> it won't get as hot as the 10Krpm disks.
> You can find a list of supported disks for the ultra1 on:
> http://sunsolve.sun.com
> click on: "Sun System Handbook" (on the left)
> click on: "Systems"
> Then select your system and you will get a list of supported components.
> The biggest supported one for ultra1 is 4Gb.
>
> I think they don't support bigger disks because of temperature issues.
> You also may not be able to boot of a single 18Gb partition.
>
> Best regards,
>
> Dirk
>
=========================End of SUMMARY=================================
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