topic Re: Tape drive transfer measure in Operating System - HP-UX

Tape drive transfer measure

Przemek Fąfara — Mon, 02 Jul 2007 12:30:05 GMT

Hi

How to measure transfer to tape drive attached to server through fibre channel card ? Is there a tool similar to iostat ?

Best regards
Przemek

Re: Tape drive transfer measure

Steven E. Protter — Mon, 02 Jul 2007 12:53:53 GMT

Shalom,

The old school way.

Take a 1 GB file.

date
tar cvf /dev/rmt/0m filename
date

1 GB divided by elapsed time.

Some of the commercial tape backup programs display throughput during or at end of job.

SEP

Re: Tape drive transfer measure

Torsten. — Mon, 02 Jul 2007 13:01:54 GMT

You can download the LTT (tool) and performe the performance test:

http://www.hp.com/support/tapetools

Re: Tape drive transfer measure

Oliver Schwank — Tue, 03 Jul 2007 00:13:06 GMT

Hello,

please have look at this - in my opinion - excellent page:

http://www.hp.com/support/pat

There you find tools and logic how to measure your tape performance.

Bye

Oli

Re: Tape drive transfer measure

Przemek Fąfara — Tue, 03 Jul 2007 04:48:10 GMT

Hi

I've checked those tools. But I'm looking for something else. I want to do on-line measurement and plot on graph fibre channel card utilization.

Best regards
Przemek