Re: Survey of the Sky-data storage

From: Brian D Williams (talon57@well.com)
Date: Mon Jun 15 1998 - 09:48:24 MDT


From: "Warrl kyree Tale'sedrin" <warrl@blarg.net>
e
ntropyfoe@aol.com

>> For details of Fermi labs data capacity, you might check their
>>website www.fnal.gov. On my last tour there I think they said
>>they have 40 Terabytes disk space and 400 TBytes of robotic tape
>>storage. Sony will sell you a standard product the "PetaSite"
>>that holds 2 Petabytes, or 2000 TBytes with robotic tape storage
>>and retreival. The robots move at 30 m/sec for faster access
>>times. -Jay

>Yeah, I'd say that those robots zipping around at 67 miles per
>hour would provide fast access.

>Hope they have good, long-lasting brakes, and are travelling on
>sturdy well-mounted tracks.

I pretty sure they're using StorageTek tape silos, these are 12
sided silos about 11' across holding around 5000 500 Meg tapes (I
have a 3-4 dozen upstairs), so the Arms move in a circle. The tapes
have laser read barcodes, so the arms can find and load a tape in
something like 2 sec.

Because they are 12 sided, you can butt them up against each other
like a honeycomb, and they can pass tapes to each other, it's
really cool, there is a string of them almost a 100 yards long
upstairs.

Don't you live in Chicago? You can stop by my office sometime and
see them.....

Brian
Member,Extropy Institute



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