$Id: SPEC,v 1.1 1998/12/10 17:21:01 schaefer Exp $

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From: "Mort K. Nistanaki" <mortn@dilog.com>
To: "'Marc Schaefer'" <marc@dilog.ch>
Cc: "'Paul Sutherland'" <paul@dilog.ch>
Subject: Dual Libra test software
Date: Tue, 30 Jul 1996 16:19:48 -0700
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Status: RO

Marc,

We need to modify dualib diagnostics software so we can use it to =
qualify the dual libra.  Below is the specification of the program; =
could make this a priority and email a copy of the software to us ASAP.

The object of the software is to continuesly and concourently process =
the two tapes.  For each tape device, it will randomley select a tape =
from any AVAILABLE (use read element status data; don't assume a full =
pack) slot and insert it in the tape then write 2MB of data (w/t =
compare).  Once the data transfer is operation is done, it will =
randoumly select and empty slot and put the tape in the pack.  The =
object of this program will be to continuesly keep the stacker active =
and once a drive is empty, it will load a new tape in.

The idea here is to have a back to back move operations on both tape =
drives.  The randum selector must be intelligent enought were it will =
cover all slots for both insertion and retrieval.  What we are trying to =
do is qualify the mechanizem.  The test will also periodicly will unload =
and reload the pack.

The test will be program to run for ever or for a assigned period of =
time.  While it is testin it will keep track of number of =
insertion/retrieval for each drive and slot, pack load/unload, and pass =
count.

We need to come up with a test procedure where we can reliablity qualify =
the product and we need to define objectives and defenition for when and =
how the product is considered reliable.  This test will be the essential =
part of the above process and we need to have it as soon as possible.

As you are writting the software do use youre experience with the libra =
to interject new ideas in the test.  This test will not be interactive =
and the result will be pass/no pass.  Please disable all error recovery =
(except media errors from the tape).

Regards,
Mort.

