Date: Thu, 30 Jan 1997 09:11:45 +1000 (EST) From: Robert Chalmers <robert@nanguo.chalmers.com.au> To: freebsd-questions@freebsd.org (bsd) Subject: tape dumping speed anomolies Message-ID: <199701292311.JAA01901@nanguo.chalmers.com.au>
next in thread | raw e-mail | index | archive | help
On a lighter note, I have now got my Archiver Viper SCSI tape remote dumping the filesystems correctly. Great. Thanks for the hints from the kind souls who responded to my pleas. I notice that using rdump from the pentium, to the 486 where the tape is, I get throughput of 95KBytes/Sec. Yet on the 486 itself, the throughput is a miserable 20 KBytes/Sec. The result is of course that the rdump from the pentium Streams in to the tape, fast. No hesitation on the part of the tape at all. On the 486, the tape shoe-shines away for literally hours and HOURS. I think the soultion will be to run up a 586-100 and put the tape in that,and rdump all systems to it? Unless there is a way to make the 486 Stream.... instead of shoe-shine. any clues anyone.? Just coincidentally, The Archive Viper-150MB tape actually dumps and restores to 525MB tapes, and 250's for that matter just fine. Interesting. bob -- chalmers.com.au: P.O. Box 2003. Mackay. 4740 +61-0412-079025 robert@chalmers.com.au for Whirled Peas http://www.chalmers.com.au Location: The Great Australian Content Site. 21'7" S, 149'14" E.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199701292311.JAA01901>