Xref: utzoo comp.dcom.lans:1954 comp.sys.ibm.pc:20367 Path: utzoo!utgpu!attcan!uunet!husc6!bloom-beacon!apple!bionet!agate!eos!amelia!prandtl.nas.nasa.gov!msf From: msf@prandtl.nas.nasa.gov (Michael S. Fischbein) Newsgroups: comp.dcom.lans,comp.sys.ibm.pc Subject: Re: High capacity backup for LANs Keywords: DAT, LANs, Backup, Novell Message-ID: <1130@amelia.nas.nasa.gov> Date: 17 Oct 88 11:55:38 GMT References: <413@cont1.Dayton.NCR.COM> <324@ivucsb.UUCP> <547@fabscal.UUCP> Sender: news@amelia.nas.nasa.gov Reply-To: msf@prandtl.nas.nasa.gov (Michael S. Fischbein) Organization: NASA Langley Research Center Lines: 25 In article <547@fabscal.UUCP> dorn@fabscal.UUCP (Alan Dorn Hetzel, Jr.) writes: >For the ultimate in high performance backup, check out a little box from >Honeywell Instrument Systems which uses VHS tape to backup on... specs: >Capacity: 5.6 Gigabytes per tape (approximate) >Throughput: 2 or 4 Megabytes per second (1 or 2 channel model) >Cost: If you have to ask.... This tape recorder was designed to replace reel-to-reel instrumentation recorders; it has some serious drawbacks for computer use (unless Honewell has fixed them, they said they would, but I haven't heard anything). What drawbacks? Well, that 2 or 4 MB/sec is obviously streaming mode. What's not obvious is that there is no start/stop mode. That means the MINIMUM speed is also around 2 MB/sec (I can check my files if anyone cares for the exact number; or check Honeywell for the up-to-date numbers. If it has changed, drop me an email note, OK?). Further, you could only put one file per cassette, so if your network or disk or I/O backplane couldn't sustain 2MB/sec, you were out of luck. mike Michael Fischbein msf@prandtl.nas.nasa.gov ...!seismo!decuac!csmunix!icase!msf These are my opinions and not necessarily official views of any organization.