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- From: michael@tom.uh.edu (Michael Rice - UH Biochemistry)
- Subject: Caveat Emptor?
- Message-ID: <1992Jul27.235848.13646@menudo.uh.edu>
- Followup-To: comp.os.vms
- Keywords: disk and controller purchasing gone awry
- Sender: usenet@menudo.uh.edu (USENET News System)
- Nntp-Posting-Host: tom.imb.uh.edu
- Reply-To: mrice@uh.edu
- Organization: University of Houston, Houston, Texas
- Date: Mon, 27 Jul 1992 23:58:48 GMT
- Lines: 71
-
- Hiya folx, I have a query and a warning, read and heed if you wish.
-
- I recently purchased a Hitachi DK516-16 (1.5 GB) ESDI drive to go
- into an existing configuration of two DK515-67 ESDI drives. I'm running
- the 515's on a Sigma RQD11-EC MSCP/ESDI controller and have been for
- about 4 years now.
-
- Now, when I purchased the DK516, I first consulted my manual for the
- RQD11-EC. Noting that the manual said it can support up to four devices
- each up to 3MB/second throughput, I felt safe buying the DK516 which
- has a transfer rate of 22.5 MHz or 2.75 MB/sec. Oh what folly that was.
-
- I believe you can get the gist of the problem from my tone: The disk
- turned out to be too fast for the controller (by about 4.5MHz, the
- controllers _actual_ but _unpublished_ rating is 18MHz.) The 516 runs
- fine on the controller until you start any write operations, then you'll
- never know if your data got put on the disk correctly and intact until you
- try to read it again. (This fact came up when I tried to restore a save
- set I put on the disk temporarily, said save set was unuseable until I
- wrote a program to copy it off and ignore the errors). It also causes
- problems with the other two disks if one does anything I/O intensive on
- the 516 (like a backup).
-
- I've tried to resolve the problem by contacting Sigma. After talking to
- Mike Chase in their Tech Support group in Nevada, I got the confirmation
- that the manual lied, the controller was too slow, and that my current
- controller is not upgradeable to a speed that will support the DK516
- drive (it's ~18MHz, expandable to a maximum (theoretical) of 20MHz, but the
- expansion is still only rated for about 19MHz)
-
- I also tried talking to the Houston Sales Rep for Sigma, Dave Boyer. Dave
- told me that Sigma prints a disclaimer that they aren't responsible for
- changes/errors in the manual, but he'd be happy to sell me a new, faster
- controller.
-
- I'd be happy with an upgrade to a fast enough controller. I can't afford
- a new one. My current controller is about four years old, and an
- upgrade for it to the current level of firmware revision is $325.
- That's $325 that I didn't plan on spending, but would be a fair enough
- price if it would make my controller work with my disk.
-
- Mike told me the week before last that the newest manual revision should
- have the corrected information, and he offered to fax me the changes. I
- had a Tech Support guy from my disk vendor call Sigma and ask them if
- their controller (the
- RQD11-EC) would support a DK516. He was told that yes, it would... and
- that it
- has a 3MB transfer rate (this was just 3 days ago).
-
- Now that my gripe is spent, here's my query: Has anyone had any similar
- experiences and would be willing to give me their opinions on what I could
- possibly do to get this resolved and quickly?
-
- and my warning: All this being told by Sigma that they can't and/or won't
- help in any way has left me with a bad feeling for them and their way of
- doing business. I wouldn't hesitate at all to recommend one(any) of
- their competitors.
-
- Please respond via e-mail if possible, I'm an unfaithful reader at best.
- I'll post a summary if requested.
-
- --
- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Michael A. Rice MRICE@UH.EDU
- University of Houston MRICE@UHOU.BITNET
- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- "Sometimes I think that the surest sign that
- intellegent life exists elsewhere in the universe
- is that none of it has tried to contact us."
- -Calvin
- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-