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- Newsgroups: comp.unix.admin
- Path: sparky!uunet!spool.mu.edu!agate!boulder!ucsu!fido!farrow
- From: farrow@ucsu.Colorado.EDU (J. Scott Farrow)
- Subject: Re: Dumping a Gigabyte
- Message-ID: <1993Jan21.201333.21402@ucsu.Colorado.EDU>
- Sender: news@ucsu.Colorado.EDU (USENET News System)
- Nntp-Posting-Host: fido.colorado.edu
- Organization: University of Colorado, Boulder
- References: <1j55eiINNk3d@BSDI.COM> <id.DZQW._25@ferranti.com> <ericw.727296638@angelo> <EJH.93Jan18192837@khonshu.colorado.edu> <C16G17.Dxx@siemens.com>
- Date: Thu, 21 Jan 1993 20:13:33 GMT
- Lines: 34
-
- aad@siemens.com (Anthony Datri) writes:
-
- >>I believe their capacity is also lower. I've only seen them go up to a
- >>gig per tape, whereas you can get 10 gig on an exabyte.
-
- >Unless I've missed something, an Exabyte 8500 has a raw capacity of around 5G.
- >10G would be with compression, and you can get compression on DAT drives as
- >well. A 60m DAT will get you ~1.6G; a 90m DAT ~2G.
-
- >--
-
- We've been testing an HP 35480A SCSI DAT drive recently. This drive uses
- an enhanced DAT format called Digital Data Storage (DDS).
-
- Here are the HP supplied specs:
-
- (for a 90m tape)
-
- Capacity: 8 Gigabytes (with compression)
- Data Transfer Rate: 11 Mg/min (~183 Kb/s)
- ("sustained data transfer rate to and from tape")
-
-
- We haven't timed it, but I think we've been able to get up to 6 Gigabytes
- on a tape.
-
-
- Scott
-
- --
- ------------------------------------------------------------------------------
- J. Scott Farrow-Student SysAdmin/Programmer, University of Colorado at Boulder
- Computing & Network Services, Boulder, Colorado, USA, phone: (303) 492-4428
- Internet: farrow@spot.colorado.edu, farrow@cs.colorado.edu
-