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- Path: sparky!uunet!elroy.jpl.nasa.gov!nntp-server.caltech.edu!SOL1.GPS.CALTECH.EDU!CARL
- From: carl@SOL1.GPS.CALTECH.EDU (Carl J Lydick)
- Newsgroups: comp.os.vms
- Subject: Re: Problems with EXABYTE tape drive
- Date: 23 Jan 1993 00:42:38 GMT
- Organization: HST Wide Field/Planetary Camera
- Lines: 26
- Distribution: world
- Message-ID: <1jq49uINNhrv@gap.caltech.edu>
- References: <1993Jan22.200938.22220@das.harvard.edu>
- Reply-To: carl@SOL1.GPS.CALTECH.EDU
- NNTP-Posting-Host: sol1.gps.caltech.edu
-
- In article <1993Jan22.200938.22220@das.harvard.edu>, chen@speed.uucp (Lilei Chen) writes:
- >On our site we use EXABYTE tape drive for backup purpose. But we
- >can not get more than 500MB on a 112M tape which is supposed to be
- >able to hold more than 2GB according to the specification. We have
- >about five drives and all behave the same way. We even tried it on
- >a PC with an ADAPTEC SCSI controler, but the result is the same.
- >EXABYTE claimed that they don't know anything about the possible
- >cause. So I am asking the net if anyone has encountered similar
- >problems with EXABYTE tape drive and/or knows its possible cause.
-
- Well, unless I'm mistaken, the 2GB figure applies only if you:
- 1) Write large records; and
- 2) Keep the tape streaming
- If you're either:
- 1) Writing small records; or
- 2) Running an application that writes a record, pauses for awhile,
- writes the next record, etc.
- then you're not going to be able to write the full capacity of the tape.
- --------------------------------------------------------------------------------
- Carl J Lydick | INTERnet: CARL@SOL1.GPS.CALTECH.EDU | NSI/HEPnet: SOL1::CARL
-
- Disclaimer: Hey, I understand VAXen and VMS. That's what I get paid for. My
- understanding of astronomy is purely at the amateur level (or below). So
- unless what I'm saying is directly related to VAX/VMS, don't hold me or my
- organization responsible for it. If it IS related to VAX/VMS, you can try to
- hold me responsible for it, but my organization had nothing to do with it.
-