Newsgroups: comp.databases
Path: utzoo!utgpu!news-server.csri.toronto.edu!torsqnt!geac!aimed!nick
From: nick@aimed.uucp (Nick Pemberton)
Subject: File Restores on PICK O/S
Organization: Artificial Intelligence in Medicine
Date: Fri, 14 Jun 91 02:32:21 GMT
Message-ID: <1991Jun14.023221.17700@aimed.uucp>

With regards to the discussion of restore times on the PICK O/S.

We have had, over the last 8 years several different PICK platforms.

One machine was a Honeywell DPS 6 running the Ultimate version of PICK.
It had 1 Gigabyte of disk, and we routinely ran saves and restores (while we
still cared about the machine :-). The full backup and restore took a little
over 15 hours (with a lot of rebuilding). Memory and disk speed were the
bottlenecks, not the CPU.

Our most recent machine is an ADDS Mentor 7000 Model 5/30, with an 8 mm
backup. It can do a 2 Gigabyte save and restore in just under 8 hours. And
since thats all on one tape (!), the restore is un-attended.

We are now heading towards universe, which doesn't even need saves/restores.

To the fellow who started the Save/Restore thread:

I'm curious to know the exact hardware and file system configuration: the
times you quoted seemed outrageous!

Nick
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