Re: SQL 2005 2-server cluster configuration with NAS?



If I understand you correctly, sharing the NAS with the NLB Web servers will
introduce more disk contention possibilities. Why are you doing this
anyway?

As for the traffic isolation, if you are using iSCSI, each clustered server
must have one or more network adapters or host bus adapters that are
dedicated to the cluster storage. The network you use for iSCSI cannot be
used for network communication.

--
Ryan Sokolowski
MVP - Windows Server - Clustering
MCSE, CCNA, CCDA, BCFP


This posting is provided "AS IS" with no warranties, and confers no rights.
"geek-y-guy" <noone@xxxxxxxxxxx> wrote in message
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"Ryan Sokolowski [MVP]" <ryan@xxxxxxxxxxxxxxxxx> wrote in message
news:O55yWxRBIHA.5196@xxxxxxxxxxxxxxxxxxxxxxx
Performance questions really depend on the intended use, user load and
expectations for performance.

--
Ryan Sokolowski
MVP - Windows Server - Clustering
MCSE, CCNA, CCDA, BCFP

gotcha...here's my scenario. I have a 6 load-balanced webservers
(externally loadbalanced), with SQL2005 dB behind them. The dB servers
prolly will not be tasked very heavily (most of the time they are pretty
much idling), and I'm looking for high-availability primarily. This is the
only hardware on the subnet. The LB'd webservers are there to handle
infrequent traffic spikes (very infrequent).

I've been reading, reading, reading about clustering + iSCSI, and see that
it's recommended to isolate the NAS and clustered servers on their own
switch to isolate them from all other traffic. I can do that, but I was
hoping to allow the LB webservers to have access to the NAS as well. Is
that problematic?

If so, I can go the three-NIC configuration for the clustered SQL servers
(in other words, private NAS network, heartbeat, and public network with
webservers), but I was hoping to be able to share the NAS with the
webservers as well.

Any observations/recommendations would be greatly appreciated.




.



Relevant Pages

  • Re: SQL 2005 2-server cluster configuration with NAS?
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    ... MVP - Windows Server - Clustering ... that it's recommended to isolate the NAS and clustered servers on their ... for the Web servers is not a good idea. ... Is there any problem installing from these versions for a clustered ...
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  • Re: SQL 2005 2-server cluster configuration with NAS?
    ... it's recommended to isolate the NAS and clustered servers on their own switch to isolate them from all other traffic. ... but I was hoping to allow the LB webservers to have access to the NAS as well. ... If you have any worries about SQL performance, then also using the NAS for file access for the Web servers is not a good idea. ... MVP - Windows Server - Clustering ...
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