Networker

[Networker] Not in media index

2010-06-29 12:21:39
Subject: [Networker] Not in media index
From: wallace88 <networker-forum AT BACKUPCENTRAL DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Tue, 29 Jun 2010 12:19:54 -0400
> I have started with command: scanner -i \\.\Tape0 after that I could scann 
> tape inside the tape device and I was able to mounted. It seems that data 
> from tape are ok and volumes are "visible", but it is taking a lot of time 
> (tape 200GB - 2hours). From second device I can't do it because error is 
> occuring:"block size is 131072, maximum size configure is 65536. please 
> modify your scsi configuration to allow transfer of at least 131072" - I have 
> tried to find where can I modify this settings - without success. 


your scanner -i is updating the media database and the client file indexes with 
what is on that volume you are scanning.  Depending on the tape capacity, and 
the "effective" parallelism or streams writing to the volume at time of backup, 
the scanner -i can take a long time.

For the purpose of finding your bootstrap, you are better to use "scanner -m" 
so that  it just updates the media database.

Take a look at the NetWorker performance tuning guide, and/or search the 
knowledgebase to find out how to increase the max block size on your windows 
host.  The Windows default is 64K, and to change this, you have to add a 
parameter called MaximumSGList and set it to 65 decimal (giving 256KB block 
size max).  Usually, this parameter is added to to the registry key for your 
tape drive controller, HOWEVER you need to consult your h/w support for your 
controller to get the definitive answer for how it is done for your 
controller.[/quote]

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