7 Feb
2019
7 Feb
'19
9:16 a.m.
At 11:09 AM 2/6/2019, Jay West wrote:
Chuck's retension levers.... any chance this is on
thingiverse or would you
be willing to send me the .stl file so I can 3dprint my own? :)
I have not looked at my 7970's in quite some time, but I had thought the
previous discussion was for mounting the 7970's in an HP rack. Not all later
HP racks, but the 2 or 3 series that were predominant around the time of the
7970's, had a very specific build related to positioning of the holes (which
were actually a few sliding metal bars with tapped holes, not just holes all
up and down the rack). The 7970 mounting bracket was designed for that 'odd'
HP-way the racks were built at that time (they changed later). I do not
think that an HP rack called a "storage array" (obviously much later
production) would have the same hole (and more importantly, the channels
around the bars) pattern. Long story short, I am not positive that mounting
the 7970 in a non-HP or HP but non-period rack would work 100% as
originally intended. It may stay in the rack, but there could be some
positional/operational issues.
Specifically what I'm wondering, without the bracket and in a "non-hp" hp
rack ;)... how did you bolt it on the left hand side? And are you sure that
with it mounted that way, the speed bolt on the front right inside the door
allows you to swing the unit all the way open without hitting the flush
surface on the left of the casting?
I need to go look at mine and see if I'm just remembering this all wrong...
lol
J
Hello Jay and Greetings to the List -
I mounted the two HP7970 Drives in a non-HP rack - just a standard
six-foot 19" rack that I found a few years ago.
I installed two heavy aluminum rails (1/8" thick and perhaps 2" on
the two sides - angle stock) for each Drive to support the 130-pound
weight of each.
I checked carefully and both Drives are, in fact, resting on the
rails 100% from front to back - those rails are supporting almost all
it not all of the weight of each Drive.
Yes, I got the three #10 (I think) screws through the holes on the
right side of each Drive into the mating threaded holes on the right
side of the 19" rack without difficulty.
However, there is no obvious place for the screws to go through the
Drive on the left side.
I am still traveling on business and have not yet had a chance to
read in detail the e-mail traffic on this - and will do so this
weekend to see what's what.
The Drives are not going to go anywhere, however I did notice that I
could push the left side of the Drive from the rear out perhaps a
quarter of an inch - and I need to correct that somehow.
...and Yes, the Drive fronts swing open to the left fine with no
clearance issues.
I was, of course, concerned about that and finally convinced myself
that the fronts would swing open before I mounted the Beasts.
See http://frobenius.com/190203%20Tape%20Drive4.jpg for exciting
photo of one of the support rails.
You can also see in the photo at the bottom of the rack on the floor
part of the 3/4" thick plywood base that I built and anchored to the
concrete floor to prevent rack tipping.
The 19" rack is, of course, bolted to the plywood base.
Best,
Jack in the Rocky Mountains.
----------------------------------------------------------------------------------
Jack Harper, President
Secure Outcomes Inc
2942 Evergreen Parkway, Suite 300
Evergreen, Colorado 80439 USA
303.670.8375
303.670.3750 (fax)
http://www.secureoutcomes.net for Product Info.
