Re: Very slow SCSI tape drive with cygwin/Win2kPro

[Bill Nugent <whn at lopi dot com>]

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

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/