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Re: Very slow SCSI tape drive with cygwin/Win2kPro
On Aug 24 12:04, Corinna Vinschen wrote:
> On Aug 23 18:40, Bill Nugent wrote:
> > mt -f /dev/nst0 setblk 8192
> > tar -tf /dev/nst0 -b 32
> tar --help, especially the -b option.
Uhm... sorry, scratch that.
> > Block size does not seem to be a factor. I've tried 8k, 16k and 32k
> > (over 32k doesn't work for some reason).
I've just tried reading and writing on a Tandberg SLR7 which has a max.
speed of 6 MB/s, using 5K blocks on tape. My testcase was a directory
of 645 MB, full of source code (lots of small files).
Using 10K blocks (-b20) for tar, I got roughly 850 KB/s on write and
1.25 MB/s on read.
Using 1000K blocks (-b2000), I got 1.4MB/s on write and nearly the full
6 MB/s on read.
Corinna Vinschen Please, send mails regarding Cygwin to
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