Here Here !

I'm glad to see we are not the only ones who have noticed this lack of
multi-processor support. It's like having a HUMMER with an V8, but only
3 spark plugs, looks impressive , but don't expect it use all the power
that's available to it... Or accomplish as much as it could...

We've asked EMC about this, and the only suggestion they made was "try
increasing the server parallelism", which has made no measurable
difference that we can see. Then they closed the case without our
consent without answering our initial question: Why doesn't networker
utilize multiple processors ????

> -----Original Message-----
> From: EMC NetWorker discussion 
> [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On Behalf Of EAlbert
> Sent: Wednesday, January 23, 2008 8:58 AM
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: Re: [Networker] Cloning parallelism
> 
> A better question for improving throughput "might be" can EMC 
> kick their programmers in the tush and get them to use more 
> than one processor!??
> 
> You pay big bucks for a Quad-Processor + the RAM to make it 
> efficient you make sure each processor has the fastest 
> ram-cache available and then we buy software that only uses 
> ONE PROCESSOR!?!
> 
> With compression, thousands of clients and encryption, the 
> use of multiple processors would be more than convenient.
> 
> This in my humble opinion... /ALE
> 
> P. S. Congo-Rats on the LTO4! Let us know if it is worth the 
> upgrade, right now it does not appear to make sense to buy it.
> 
> -----Original Message-----
> From: EMC NetWorker discussion 
> [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On Behalf Of Tim Verbois
> Sent: Wednesday, January 23, 2008 2:44 AM
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: [Networker] Cloning parallelism
> 
> 
> Hello,
> 
> Environment:
> 
> VTL
> L700 (LTO3 + LTO2 drives)
> Legato 7.3.2 from SUN
> Server + storage node
> 
> is it possible to have the parallelism on a cloning set to 2? 
>  I changed the setting in the java interface, but it doesn't 
> change a thing.
> 
> Why do I want to do that?  We clone from VTL to L700 LTO3 
> tape drives.  
> The speed of an LTO3 drive is 70 MB/s native and can reach 
> 100 MB when compressed.  Our VTL can supply data at a speed 
> of 70 MB/s.  A client can do a restore at max 50 MB/s.  So 
> while we clone at a speed of 70 MB/s compressable data, we 
> lose at least 20 MB/s average speed for cloning.  For 
> restores, our tape is to fast, we would be satisfied with an 
> everage restore speed of 40MB/s. 
> 
> The problem we have is that we need the top speed for cloning 
> because of the small time window for cloning (backupping 
> every day and the full weekend, needs cloning at top speeds 
> during all the free time). 
> 
> In a few weeks we start using LTO4, this is going to make the 
> loss of speed even bigger, much bigger.  Can this be solved?
> 
> --
> Tim Verbois
> Unix Team
> EDS-Telindus
> 02/553.71.73
> 
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