[Veritas-bu] NT OTM Questions
2003-02-20 11:17:32
Subject: |
[Veritas-bu] NT OTM Questions |
From: |
ssesar AT mitre DOT org (Steven L. Sesar) |
Date: |
Thu, 20 Feb 2003 11:17:32 -0500 |
I don't recall seeing this option in 3.4, but on a 4.5 master, you can
disable OTM at the client level. It's just a checkbox, and it rid me of
those pesky 11 system call failure errors.
Here's couple of links to some good info on NBU and OTM:
http://www.backupcentral.com/foms/netbackup-serve/cache/151.html
--Steve
Nash, Ebon wrote:
> I would recommend either increasing the size of the system drive, which is
> most likely your C: drive. If that is not possible, I believe there is a
> way to tell NetBackup to write OTM files to a different location (anything
> other than c:). I believe their web site has information on how to do this.
> One other thing you can try is disabling OTM to see if that fixes the
> problem. That should be documented on Veritas' web site as well.
>
>
> Ebon Nash
> Compuware Corp.
>
> -----Original Message-----
> From: Weber, Philip [mailto:Philip.Weber AT egg DOT com]
> Sent: Thursday, February 20, 2003 6:17 AM
> To: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: [Veritas-bu] NT OTM Questions
>
>
> Dear all,
>
> We are experiencing system problems with a large NT4 fileserver (500 Gb
> storage, 2 * P3 Xeon 550, 512 Gb RAM), the system has been found hanging the
> last three mornings & had to be cold restarted. We are running Netbackup
> 3.4 patch level 3 on the Solaris servers & patch level 1 on the NT clients.
>
> Fingers are being pointed at OTM (because yesterday when the problem
> occurred the winnt system drive was found to have filled up, & an old OTM
> cache file was found on it).
>
> I have seen on this list that other people have had issues with OTM. I know
> it is a pain to configure and doesn't seem to work very well, can it cause
> system problems?
>
> I have also seen that people have turned OTM off. What are the effects of
> this - I would assume that all open files would therefore not be backed up
> and we would get lots of 1 return codes.
>
> When OTM is working correctly I does it create cache files & delete after
> use? Can it create multiple? Why would it leave them lying around?
>
> Any help appreciated ... thanks, Phil
>
> Phil Weber
> Egg Distributed Hosts - UNIX Systems Engineer
> Phone: 01384 26 4136
> Mobile:
>
>
> -----Original Message-----
> From: Liddle, Stuart [mailto:liddles AT amgen DOT com]
> Sent: 19 February 2003 22:48
> To: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: [Veritas-bu] Catalog backup question (NetBackup Datacenter 3.4
> UNIX)
>
>
> I need a way to find out how much data is actually being written to our
> catalog tape. I used the following:
>
> bpbackupdb -v
>
> and looked at the /usr/openv/netbackup/logs/admin/log.<date> file
>
> It did not have the total number of bytes written to the tape anywhere in
> the output. I'd like to know how close I'm getting to filling my catalog
> tape.
>
> Is there an easy way to determine this information, or do I have to just
> guess that since the data in the
>
> /usr/openv/netbackup/db
>
> directory is mostly text that it will get at least a 2:1 compression
> (probably closer to 4:1) and use that as a guide for how much will fit on my
> DLT7000 tapes? Since the hardware compression will get about 70GB of
> compressed data on a tape, what's the realistic amount to expect that will
> fit on the tape? Would I have to worry if my db directory is about 50GB?
> 100GB?
>
> thanks,
>
> --stuart
> _________________________
> Stuart W. Liddle
> Amgen Corp.
> liddles AT amgen DOT com
>
>
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--
===================================
Steven L. Sesar
Ops. Sys. Programmer/Analyst, Sr.
Application Operations R10A
The MITRE Corporation
202 Burlington Road - R101
Bedford, MA 01730
tel: (781) 271-7702
fax: (781) 271-2600
email: ssesar AT mitre DOT org
mobile: (617) 893-9635
===================================
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