Last time I checked, it was not possible to bind the two network adapters to
a 2Gb channel on the Dell servers. Those were PE1955 blades.

I even doubt you're benefitting by hooking more than one tape drive to the
HBA. The tapedrive is just going to operate on the same speed as the HBA
anyway.

Why not just use the Networker server as a storage node?

Wallace

2009/1/9 Jóhannes Karl Karlsson <johannes.karlsson AT skyrr DOT is>

> I'm going to check out this Broadcom Control Suite and see if I can bind
> the Nic's in such a way I can have 2Gb bandwidth instead of just 1Gb.
>
> But how about using both Nic's with separate IP addresses? Will that be
> difficult for Networker? E.g. one Nic on the DMZ subnet and the other nic on
> the internal LAN?  Configuring two storage nodes like that would give me
> kind of fault tolerance, since on storage node could completely replace the
> other if was to go down, only resulting in slower backups.
>
> Regards, Johannes
>
>
>
> -----Original Message-----
> From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] 
> On
> Behalf Of Fazil Saiyed
> Sent: 8. janúar 2009 19:11
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
>  Subject: Re: [Networker] Optimizing / performance tuning storage nodes
>
> Hi,
> If i understand your configuration correctly, You should be able to use
> Brodcomm Control Suite to configure NIC Teaming and utilize both NIC for
> maximum throughput.
> I am concerned about number of clients you have configured to backup from
> this SN, i would have like the ratio to be more like 50 servers to 1 SN (
> ofcorce if you do cloning here or any of this server are superlarge that
> would prompt design re-consideration).
> NIC utilization  could be improved, hopefully less then 70 peak would be
> desirable, you could try and stagger the backups to lower the utilization.
> Your overall data size does not seems to  be too high.
> You should be able to push the EDL close to it's capabilities with the
> tape drives, but realize that if all 5 Tape drive write at the same time,
> you may overload the FC ( assuming you have 2 GB FC connections), if you
> have  4 GB FC connection, you may be in better shape as long as back end
> FC connections  to EDL are not shared among multiple SNS.
> HTH
>
>
>
> JK <johannes.karlsson AT SKYRR DOT IS>
> Sent by: EMC NetWorker discussion <NETWORKER AT LISTSERV.TEMPLE DOT EDU>
> 01/08/2009 12:49 PM
> Please respond to
> EMC NetWorker discussion <NETWORKER AT LISTSERV.TEMPLE DOT EDU>; Please 
> respond
> to
> JK <johannes.karlsson AT SKYRR DOT IS>
>
>
> To
> NETWORKER AT LISTSERV.TEMPLE DOT EDU
> cc
>
> Subject
> Optimizing / performance tuning storage nodes
>
>
>
>
>
>
> Hi.
>
> I want to configure a very robust storage node to write to an EDL 4200.
>
> To do that I have zoned a DELL PE1955 blade through 2 HBS's to the EDL.
> Each HBA is directed to a dedicated FC port on the EDL and each HBA on the
>
> storage node has got 5 tape drives on the same VTL on the EDL. This
> storage
> node will handle about 200 clients and is going to write about 25TB of
> data
> every week, so I really need to think about throughput.
>
> Now, the NIC is the bottleneck. The utilization is at 70% constant and
> peaking to 85%. The PE1955 blade has got 2x 1Gb Nic's, but I fail to see
> how I can utilize both of the nic's.
>
> Does anyone have an idea how I can enhance the robustness even further?
>
> What would be the best way to use the NIC's?
>
> Regards, Johannes
>
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