Networker

[Networker] VTL & StorageNode Config advise

2007-08-30 13:51:25
Subject: [Networker] VTL & StorageNode Config advise
From: Fazil Saiyed <Fazil.Saiyed AT ANIXTER DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Thu, 30 Aug 2007 12:46:30 -0500
Hello,
We are in process of configuring NetApp VTL 700 and several Windows 
Dedicated storage node (7-10 SN), including 3 non dedicated storage nodes 
and cloning.
I wanted to know if any advise on how to go about the config, i have tried 
attaching one VTL tape and one Physical lib to master server, due to 
complexities involved in managing pools, devices and jbconfig , i wonder 
if some one has best practices,experiance with such config.
Right now i am thinking out of box. 
Here is my plan do you think it's workable.
Create and attach one ( 1st) VTL instance to Master server with 10 
Devices.
Create Second instance of VTL and distribute among Storagenodes ( Only the 
Devices and not VTL itself.
Do you think this config option is good one, my thinking is if we loose 
Devices on storage nodes, it wont impact backups on master server and give 
us failover capabilities while simplifying our jbconfigs ( configuring 10 
devices initially vs 65)
Storage nodes can be added to backup server one at a time, not breaking 
our primary sever.
Questions:
Can the second instance of VTL be configured to share Devices only, which 
server controls the robotics ( even if they are virtual) do i need to 
assign control lun to each storage node ( two devices will be assigned to 
dedicated storage nodes while 10 to non dedicated sn.
I don't think i should have any problems configuring remote devices in 
this config to the master server and storage node what do youthink ?
All of our storage nodes are Windows 2003, Netapp 700 is VTL -Fiber 
attached while ADIC i2K is Physical lib with 8 LTO2 drives.
Any potential conflicts, problems or concerns with the config as above, i 
know the VTL Tapes would be isolated from primary server this way , but 
they would be cloned any way, and if one SN dies the others should be able 
to mount the use the VTL based tapes  ?
Thanks

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