How legato works 1

[hamster2k3]

Hello,

We are currently moving to Data Protector 5.1 because of the low cost compared to Legato.

But there is one strange thing with DP, the new machine running DP, the network card runs at 35% at all time when the backup.

If we do a transfer test, we can get the 100MBps on the card, but not during a backup.


With our old server we were using the same tape drive,
but the backup where using all the bandwith on the network,
which means 100MBps...

So wondering, if Legato was doing local backup of the remote machines to a tmp drive while he was writing some stuff on the tape drive ?

You know what I mean ?


I'm thinking that DP is simply downloading stuff from remote servers and dumping it directly to the tape drive.

Still we have 2 tape drive AIT-2, but we've been getting about 4Mbps from both drive, now with DP and before with Legato.

Anyone has any clue about this ? How Legato really handles the backups ?

 

[605]

NW will use whatever it can achieve during the backups - the network bandwith can not be limited.

However, it can not transfer more data than the drives can backup - if they are slow, this is the bottleneck. You may backup to disk to achieve higher transfer rates and clone or stage this to tape later. However you need an extra license to be able to do this.

 

[keefb]

hmmm,

"How Legato Works", thats the million dollar question, once you know please let Legato know.

Thanks

P.S. Sorry for the sarcasm, but couldn't resist.

Regards
KeefB