Veritas-bu

[Veritas-bu] NBU + NetWare problem

2004-10-27 06:29:50
Subject: [Veritas-bu] NBU + NetWare problem
From: marek.gorka AT sun DOT com (Marek Gorka)
Date: Wed, 27 Oct 2004 12:29:50 +0200
thanks for hints ;-)

Hampus Lind wrote:

> Netware is always a problem... :-)

indeed.

[cut]
> 1. We se here that SYS volume takes long time to backup. Therefor we 
> have created a policy that only backup SYS one a week and have excluded 
> SYS from the other targets.

we're obliged to backup the SYS daily -> once a week a full backup, the 
other days - cumulative. the amount of data to be backed up is approx. 5G, 
not too much. when everything is ok with the novell client the full backup 
lasts <0,5 hour, cumulative <20 minutes. the average speed of backup is 
about 5MB/s.

as you see, the volume of data is not a problem here. i'm sure that if there 
was 500MB of data to be backed up we'd have the same problem. novell rox :-)

[cut]
> 3. An upgrade of both the netware platform and netbackup would be nice 
> for you. Netware have improved the TSA function very much since tsa500.
> We run TSAFS here and it`s much faster. And you with tsafs you can tune 
> your backup env..

unfortunately it's not an option in our customer's environment. the action 
would take 2-3 years to complete :-)

> 4. There is a test untility available at netware download called 
> "tsatest". This is a great utility to test your netware env and se what 
> you can expect from your backups.

i'll check it, thanks.

by the way, we are now monitoring via bmc patrol many crucial netware 
parameters to pin point the parameter (like buffers or so) which causes the 
novell 'server' to hang. maybe this will drive us to a solution in the future.

> 5. We dont run OTM here because of all the problems. The OTM cache file 
> probably stays because of that you have to manually kill the job.
> What happens if you dont run OTM? Still same error?

haven't checked that.

> 6. If you set the cache max size to 0 (dynamic) how does it work then? 
> How large does it get?

it varies: sometimes the file grows as much as there's free space, sometimes 
only up to 1,5Gapprox.

> It`s a terrible situation to run Netware and also have to back it up.. 
> All software companies say that "we dont priority netware" because no 
> one uses it, but we do and we have had so much problem erlier. After the 
> upgrade to netware 6.x and the latest tsa modules things have been 
> better...

well. the interesting thing is, that there are two types of novell netware 
in the installation: so called 'NW' servers and 'SD' servers. the same 
software, the same configuration, the same platform version. 'NW' run pretty 
ok, 'SD' hang. magic.

regards,

-- 
Marek Gorka
Client Solutions
Sun Microsystems Poland

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