this is just one of our requests :
SIZE TIME PERF
HOST PARTITION L KB HH:MM:SS KB/sec STATUS
------------------------------------------------------------------------------
{filer} {volume} 0 100558438 08:45:50 3187.59 Success
We have dual F720s with trunked 100mb interfaces on a switched network.
Our backup host is an E450 with an L11000 locally attched to it with
DLT7000s.
Using BudTool we have ndmp requests streamed over the wire.
Also, our backup host is multi-homed having one of it's interfaces
on the same subnet as the filers.
(your answer was already in your message)
If the backup host you were using (the slow one) is not on the same
subnet as the filers and same interface speed, that's where you're
bottleneck is (routing and/or bandwidth).
BTW: you're safer going over the wire. we've had some libraries
hang the scsi bus of the filer when locally attached.
--
*******************************************
** Juan Torres
** Susquehanna Partners, GP.
*******************************************
"Rainchik, Aleksandr (MED, Non GE)" wrote:
>
> Hello,
>
> We have F720 NetApp that holds about 100Gb of data and we are backing it
> up
> trough the network, not with directly connected tape. Why? F720 comes
> with
> differential port for tape connection and our nice tape library is all
> single-ended.
>
> We are using Budtool to do that and it's all done via NDMP.
>
> And what we have is 1024 K/sec backup speed. So it takes about a 24
> hours
> to finish Level 0 on filer. There is a Sun E450 on the same subnet,
> plugged to
> the same switch, both at 100 full-duplex, going to the same media
> server.
> And backups are 3 times faster there.
>
> Is there something I can tweak on filer? Like change priority of ndmpd
> process,
> something to speed up backups?
>
> Can you let me know what is your backup speed in NetApp/Budtool
> configuration?
>
> Thank you.
>
> P.S. We are thinking about getting differential to single-ended SCSI
> converters.
> Any experience with such converters?
