> I have never seen a Windows based box send a stream of data faster than
> 5MB/sec so you would need to send four or five streams of data from a
> number
> of Windows machines to keep an LTO drive happy. 
> 
        I have an installation, in an SSO environment that a couple of
servers have hit up to 12MB/s. One of these is streaming, but the single
stream does hit that high. In our initial testing before we brought this
system online, I tested one server and it hit 18MB/s. I can't remember if
that's combined streams or not. I do have screenshots somewhere though.
These two servers are configured as Media Servers and store large files. Our
cat5 connected servers usually hit around 3-4MB/s. I will agree that Unix is
faster.

        Rusty
>  
> Have fun. 
> 
> d. 
> 
> _____ 
> dave high
> VERITAS Enterprise Consulting
> Bay Area Region
> 702-683-7733
>  
> "Unix IS user friendly, it is just VERY picky who it chooses as friends" 
> 
> -----Original Message-----
> From: WEAVER, Simon [mailto:Simon.WEAVER AT astrium-space DOT com] 
> Sent: Wednesday, May 29, 2002 6:00 AM
> To: 'veritas oracle sun'
> Cc: 'veritas-bu AT mailman.eng.auburn DOT edu'
> Subject: RE: [Veritas-bu] Netbackup & LTO performance
> 
> Forget it!!!!!
> The client I work for sent some staff off to a seminar to talk about LTO.
> They were told of GREAT speeds and HUGE compression capability!
>  
> What they forgot to mention is that it all depends on:
>  
> Your LAN / WAN
> Hardware Configuration
> Amount of Data (small files are a killer)
> Compression!
>  
> We don't get the specs we were quoted! I don't think many people do!
>  
> Simon Weaver
> NT Domain Administrator
> Ext. 5544
> Tel: 02392-705544 (Direct Dial)
> Simon.Weaver AT Astrium-Space DOT com
>  
> -----Original Message-----
> From: veritas oracle sun [mailto:vos2002 AT indiatimes DOT com]
> Sent: 29 May 2002 11:42:AM
> To: NB
> Subject: [Veritas-bu] Netbackup & LTO performance
>  
> Hi all
> Currently we are doing testing of HP Ultrium Drives 
> We are using SAN env. to perform backup 
> Netbackup is configured on Solaris 8 & NBU 3.4 Datacenter
> As per LTO specification 100GB/Hrs is minimum speed
> But I am getting on 67GB/HRS in SAN env.
> I did tunning Buffer Size Number of buffer and /etc/system shared memory
> parameters
> but no improvement
> If any one achive above speed pls mail me configuration done @ your end
> Thanx & Regards
>  
> Pravin Kudav
>   _____  
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