The URL for CDP is http://www.cdpi.com


At 04:37 PM 5/7/2001 -0500, scott.kendall AT abbott DOT com wrote:

>I believe you may have this backwards in your e-mail.  OTM_Quiescent_Wait is
>the amount of "quiet" time that must occur before OTM is initialized.
>OTM_Quiescent_Timeout is the window in which the OTM_Quiescent_Wait must
>occur.
>
>Therefore, what you have in your e-mail is telling OTM to wait for 300 seconds
>of quiescent time (time without any writes) within a 60 second window before
>it can initialize.  I don't know what OTM would do if you told it to look for
>a longer period of time than the window allowed.  I would guess that there
>would not be any errors, but that the backup would timeout at the 60 second
>mark and start the backup without OTM since it wasn't able to get 300 seconds
>of quiet time.
>
>If there are no problems with open files, I would leave the defaults.
>
>If the client is getting status 1 (partially successful), you probably want to
>increase the timeout first.  Keep in mind, that if you make this too large you
>will run into other issues (default for Client Read Timeout on the client is
>300 sec.).  Once you have the OTM timeout to 2 or 3 minutes, you then probably
>want to look at decreasing the wait value from the default of 5 seconds down
>to something like 3.
>
>For more information on OTM look at the web site of the people who write this
>for Veritas.  I don't know their URL, but the company is Columbia Data
>Products.
>
>
>- Scott
>
>
>
> 
>
>                     "Reese, Paul E. (CAP, 
> CMC)" 
>
>                     <Paul_Reese AT mortgage.ge DOT com>         To: 
> "'veritas-bu AT mailman.eng.auburn DOT edu'"
>                     Sent 
> by:                             <veritas-bu AT mailman.eng.auburn DOT edu> 
>
>                     veritas-bu-admin AT mailman DOT eng.        cc: 
>
>                     auburn.edu                           Subject: 
> [Veritas-bu] OTM Tuning and NBU 3.4
> 
>
> 
>
>                     05/04/2001 02:57 
> PM 
>
> 
>
> 
>
>
>
>
>
>Has anyone messed around with tuning OTM in connection with NBU 3.4?  I was
>looking for anything to be wary of when changing the OTM_Quiescent_Timeout and
>the OTM_Quiescent_Wait parms. I have the OTM Tuning white paper, but it
>doesn't tell you much other than what the field is for and the default value.
>I was thinking of pushing the OTM_Quiescent_Timeout value to 60 seconds and
>the OTM_Quiescent_Wait to 300 seconds.  Thoughts?
>
>
>
>_______________________________________________
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---
W. Curtis Preston
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