At 03:41 PM 1999-05-27 -0400, you wrote:
>Date: May 27, 1999 Time: 3:22 PM
>From: Jerry Lawson
> The Hartford Insurance Group
>(860) 547-2960 jlawson AT thehartford DOT com
>-----------------------------------------------------------------------------
>We have been using ADSM on MVS for several years now, and I have a good
>background in that area. However, we now have a group of users
>(approximately 400 desktop users) that will be moving to another office
>building, and backing up to our mainframe will not be practical. I proposed
>to the customer that they use a local ADSM server, and they like the idea.
>The question now on the table is "which one"?
>
>At this point we are open to the platform choice. The area will have
>expertise in both NT and Unix. This is a customer support area, so NT, Sun,
>AIX, and possibly HP are options. My question to the list is as follows:
>
>If you had the option of platform, which one would you pick to support a 400
>user desktop environment? (No servers at this time.) Is NT robust enough to
>handle it, or would AIX or Solaris be a better choice? How big would you
>make the server, and which Tape solution would you recommend?
>
We currently handle 1,500 clients (servers and desktops) with a RS/6000
model 7043-140. I currently have 13 GB of database space (mirrored, 26 GB in
total) and 30 GB in primary backup pool space.
Tape storage is 4 IBM 7331-305 tape libraries (Exabyte Technology) with a
current inventory of 1.3 TB.
The processor appears to be robust enough to handle our load (we move about
25 GB a day). I would not reccomend IBM peripherals (disk & tape). The tape
libraries are a real pain. I seem to have to replace a drive a month. Tapes
become unreadable. Totally unsatisfactory. I have one IBM disk (7204-325
4.5 GB differential SCSI) that I have had to replace the dive 4 times since
December.
For tapes, I would recommend AIT technology. My readings are that this
technology is more reliable than DLT or Exabyte.
-----------------------------------------------------------
Don Coleman,
Queen's University Information Technology Services
Kingston, Ont. Canada K7L 3N6
Tel: (613) 533-2034 Fax: (613) 533-2168
Email: Coleman AT Post.QueensU DOT CA
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