Networker

Re: [Networker] ADIC Scalar 100 + controller LSI logic 53C1010-66 with Legato 7.1.1 on Windows 2000: speed problem

2004-03-22 16:04:51
Subject: Re: [Networker] ADIC Scalar 100 + controller LSI logic 53C1010-66 with Legato 7.1.1 on Windows 2000: speed problem
From: Chad Smykay <csmykay AT RACKSPACE DOT COM>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Mon, 22 Mar 2004 15:04:32 -0600
I agree with you Davina.  But I always start off troubleshooting all of the
global's first.  This was not needed but it is a nasty habit of mine to grab
them all :)

Thanks for that info though this was something I did not even know about 6
months ago and I am sure most other people are still not aware of it.  I had
to learn about it the hard way in a production environment.

Thanks,


Chad Smykay, RHCE, LCNA
Systems Storage Administrator
Rackspace Managed Hosting (TM)
210-892-4025 ext 1603
Cell: 210-273-2344

-----Original Message-----
From: Davina Treiber [mailto:Treiber AT hotpop DOT com]
Sent: Monday, March 22, 2004 12:52 PM
To: Legato NetWorker discussion; Chad Smykay
Subject: Re: [Networker] ADIC Scalar 100 + controller LSI logic 53C1010-66
with Legato 7.1.1 on Windows 2000: speed problem

Chad Smykay wrote:
> Vito,
>
> Next time you run the big ASM test I recommend you run a test with 2
> clients with 4 big ASM directive each.  And then kick off a group with
> both of those clients in it and list those 4 "saveset" ASM for each
> client and see what you get.  Also what is your Server Parallelism set
> to?  What is you're your juke box max parallelism set to?  And what is
> your max target sessions for the drive you are using set to?
>

Jukebox max parallelism is irrelevant here. It is a common misconception
that this value affects backup operation, it does not; it simply affects the
number of jukebox operations (e.g. load, unload, label, inventory,
etc.) that can take place simultaneously. Thus a value for this higher than
the number of drives in the jukebox is nonsense.

The other factors that could apply in the case in point are:
server parallelism
client parallelism
savegrp parallelism
target sessions

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