What speed are you getting?
What OS? (AIX?)
Poor performance vs a real tape drive or vs other streams to the VTL?

In my DataDomain world the DD is always slower than a 3592 or LTO-4 drive when 
looking at a single stream.  Together the streams do make a river in the 1,400 
MB/sec range.

Andy Huebner


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Steven Langdale
Sent: Wednesday, June 19, 2013 4:46 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] Poor LAN Free performance & VIOS

All

Got a new LAN Free client, nothing out of the ordinary, but LAN Free perf is 
slower than I'd hope.

I'm going to a ProtecTier VTL and have 20 sessions going.

Not started doing any fault finding yet, but the one big difference with this 
client is that the tape HBA's are virtual ones (NPIV).

Has anyone seen less than stellar performance with this kind of setup, or 
should the virtual HBA's be lower down the list of things to check?

For info, the VIO's do have seperate real HBA's for tape & disk.

Thoughts/comments welcome

Thanks

Steven