Any of the air cooled machines could run damn near anywhere. When I got to Florida (From the glass house data centers of DC) I saw it happening. A "computer room" was a bay in a strip mall or industrial center. That was also the first time I ran into red leg delta power and the first time I saw "no raised floor" since the 1401 and mod 30 days.
^^^^^^^ channel
The channel directors off loaded all the I/O microcode. The 3031 was significantly faster than a 3158 because of the director. IIRC they were pretty cheap too.
It's not after mine. ;-) Nope. /360 is hardly RISC. THe processor complex is an MCM.
In article , ehsjr wrote: [...]
Reminds me of an incident that occurred in the late 80s/early 90s when I worked for the Navy. I managed a Tandem TXP system that shared a computer room with a Honeywell 66. One holiday weekend, the air conditioning system failed in the wee hours of Saturday morning after the second shift operators had gone home. (There was no third shift.) Monday being a holiday, the problem wasn't discovered until the first shift operators arrived at about 6am Tuesday to find the data center at about 110 degrees. The Honeywell had gone down only about three hours after the air conditioning did... but the Tandem was still up. The DASD cabinets were painfully hot to the touch, and one of the drives had gone down -- but since Tandem uses mirrored drives, and the mirror was still ok, it did no harm. I measured the exhaust air at the back of the processor cabinet at 134 degrees... but the Tandem was still up.
Actually we had lots of big iron at the Retro Computing Society of Rhode Island. The KL10 was a big beast. Interestingly the collection seriously lacked IBM big iron.
We stipulated a raised floor because we could. And it has come in handy, from snaking a power whip over to the telephone switch (An Avaya Prologix) or running network cabling to server racks, etc.
Back in 1993 I was responsible for managing a Data General MV9600U running AOS/VS II. Loved that machine, and still remember alot about it.
In any case, these were machines that could take abuse. We knew of one located in a non-ventilated closet that just continued to run until decommissioning day.
You can recomend anything you like but the salesman is not going to leave the money on the table if the customer says no, particularly when it says it is not required in the sales manual.
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