Jeff Mery wrote:
> You don't have to have an entire library dedicated to the 
> filers.  This is 
> true for both FC and SCSI libraries.  However, you do have to 
> have drives 
> dedicated to them (This has been our experience, can anyone else 
> confirm???).  In one branch, we have a library's robotics and 
> two drives 
> connected to the Legato server.  The other two drives in the 
> library are 
> connected directy to the filers (one each).  This gets around 
> the cost of 
> a separate library license (still need the NDMP license(s)).  It also 
> keeps any backup data completely off the network (each filer 
> can go to its 
> own drive).

You can use the Legato Dynamic Drive Sharing functionality with NDMP
drives.

We have a 2-drive library where all drives are shared (via fibre
channel) between our Solaris Networker server, and two Netapps.  If a
drive is idle, it can be used for any backup task.

To do this, you'd need:
1 "shared autochanger license" (this is supposed to be included in
NW6.x, but we've needed the extra enabler)
2 "NDMP Client Connections" (one for each filer)
2 "SAN Storage Nodes" (dedicated storage node, one for each filer)
1 Autochanger license
2 "Dynamic Drive Sharing" (one for each tape drive)

--Joe

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