Networker

Re: [Networker] Limiting a client to one of two tape drives

2011-06-02 13:27:08
Subject: Re: [Networker] Limiting a client to one of two tape drives
From: "STANLEY R. HORWITZ" <stan AT TEMPLE DOT EDU>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Thu, 2 Jun 2011 13:26:06 -0400
I set the pool parallelism to 4, but I also tried 1. Neither setting does what 
I need.

On Jun 2, 2011, at 12:38, "jee" <jee AT ERESMAS DOT NET> wrote:

> Hi Stan,
> 
> on third thoughts...there is another possibility.
> 
> Check the pool parallelism :
> 
>  pool:   properties > configuration > max parallelism
> 
> default is 0 (unlimited)
> is it 2? 
> 
> jee
> 
> 
> On Thursday 02 June 2011 17:21:12 jee wrote:
>> Hi bingo,
>> 
>> 
>> That's a good point but that information is on the first msg:
>> 
>> "each drive has 16 as its target sessions value. This is with NetWorker 7.6
>> SP1 on a Linux box."
>> 
>> So, I asume  "max sessions" >= 16 (default is 512, I think.)
>> 
>> 
>> The problem may not be caused by the settings on these two drives. If there
>> are other drives on that SN, then the lowest target sessions configured on
>> any device on that SN will be used  (even if that other device is linked to
>> a different pool). This information appears on the admin guide.
>> 
>> Having the "target sessions" parameter on the device configuration seems to
>> be pointless, at first.  However, on second thoughts, it does make sense
>> because there isn't a "NSR storage node" type available.  So this attribute
>> will have to be configured on the devices (a  dedicated SN is defined that
>> way).
>> 
>> 
>> 
>> Stan,
>> 
>> do you have more devices on that SN? If not, then I have run out of
>> ideas...or maybe this is a bug?.
>> 
>> 
>> jee
>> 
>> On Thursday 02 June 2011 07:16:35 bingo wrote:
>>> You can limit the device sessions by using the Max. Sessions parameter.
>>> As you did not mention it so far, i could think that you might use a NW
>>> version which does not have this incorporated yet.
>>> 
>>> On the other hand, if you set the device's Target Sessions high enough,
>>> NW should not use another device before the first has been filled to the
>>> Target Session value, unless you have 'mis-pooled' and other save sets
>>> like Index and Bootstrap must use another media (for another pool).
>>> 
>>> +----------------------------------------------------------------------
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>>> 
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