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Re: Very slow SCSI tape drive with cygwin/Win2kPro
- From: Bill Nugent <whn at lopi dot com>
- To: cygwin at cygwin dot com
- Date: Fri, 27 Aug 2004 07:13:32 -0400
- Subject: Re: Very slow SCSI tape drive with cygwin/Win2kPro
Hi Corinna,
Setting tar's -b size up resulted in a radical increase. Still not
streaming but real close and workable. Reading in a 100GB tape with
500MB to 1,500MB files should take about three or four hours instead of
three weeks! I'm going to keep experimenting to see if I can get it to
stream which should bring it down to 2 hours. Thank you!
In experimenting I found '-b 20480' was "too large" and did not work. I
have not had a chance to determine at what size tar breaks.
Any idea why I can't set the block size greater than 32K using
"mt setblk"? We have a number of tapes which have a 64K block size and
I'd rather having to rewrite them.
Thank you again,
Bill
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