Veritas-bu

[Veritas-bu] Destaging Speed

2007-01-04 03:00:51
Subject: [Veritas-bu] Destaging Speed
From: hampus.lind at rps.police.se (Hampus Lind)
Date: Thu, 4 Jan 2007 09:00:51 +0100
Hi,

Do someone know how I can do the same from hp-ux? That is monitoring tape
speed from commandline. 
Under hp only -t (terminal statistics) option is available for iostat,
otherwise it only show disk info...

Thanks and regards,

Hampus Lind
Rikspolisstyrelsen
National Police Board
Tel dir: +46 (0)8 - 401 99 43
Tel mob: +46 (0)70 - 217 92 66
E-mail: hampus.lind at rps.police.se


-----Ursprungligt meddelande-----
Fr?n: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] F?r Steve Fogarty
Skickat: den 3 januari 2007 16:35
Till: 'Martin, Jonathan (Contractor)'; 'NB List Mail'
?mne: Re: [Veritas-bu] Destaging Speed

bash-3.00# iostat -zxn 5 | egrep 'device|rmt'
                    extended device statistics
    r/s    w/s   kr/s   kw/s wait actv wsvc_t asvc_t  %w  %b device
    0.0   92.6    0.0 23706.3  0.0  0.4    0.0    4.4   0  41 rmt/0
    0.0   66.3    0.0 16972.9  0.0  0.4    0.0    5.6   0  37 rmt/1

Shows the speed the tape drives are being written to (kw/s).  It updates
every 5 seconds.

Stve 

-----Original Message-----
From: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Martin,
Jonathan (Contractor)
Sent: Wednesday, January 03, 2007 10:57 AM
To: NB List Mail
Subject: [Veritas-bu] Destaging Speed

Never done DSSUs before.  I'm watching all my destaging happening during
the week from this weekend's backups  I noticed the duplication jobs
don't have a write speed on them.  How can I tell how fast the data is
being written during destaging?  I suppose I could script something to
compare job duration with amount of data written on the tape but I was
hoping there would be something easier / better?

Thanks,

-Jonathan

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