Interesting thread. We just got an EQL 6100X and 4100E and, like you, we
are setting up our VMware farm on them. We had wanted to use a gigabit
Cisco 2960S for the iSCSI transport but Dell told us to use a 3750-X
instead (more throughput). Actually they suggested PowerConnects, but we
are addicted to Cisco. Have not purchased the switches yet. Just thought
I'd share.
On 11/17/2012 1:27 AM, Joseph L. Casale wrote:
Jumbos on <10GBe can actually slow things down, but everybody things
jumbo==sounds good therefor must be. There are a few technical reasons
why it doesn't improve generally at those speeds.
Some switches need certain characteristics disabled for that type of traffic.
Call HP, its free for those switches and ask what they suggest. I don't know
your switch specifically but before I throw the towel in, I'd give it a good
shot.
jlc
________________________________________
From: Matthew W. Ross [mr...@ephrataschools.org]
Sent: Friday, November 16, 2012 10:49 AM
To: NT System Admin Issues
Subject: iSCSI with HP/Brocade switches
Hey List.
I have our new Dell/Equalogic vSphere cluster up and running, but we have been
having some issues as of late with latency on switch side of the equation.
When we set up the cluster, we decided to use a pair of HP 2910al-24G switches.
These were not the switches recommended by our VMWare vendor (They recommended
a pair of Brocade 6610 switches). Now that we have been having these latency
issues, we are considering the recommended switches.
So here's my questions:
1) Has anybody used HP switches (2910al-24s or similar) as the iSCSI transport?
Has anyone seen similar issues, or are there some specific configurations that
need to be double-checked?
2) Anybody seen any issues with the Brocade switches? (I expect the answer to be
"no", but it's never too late/early to ask.)
--Matt Ross
Ephrata School District
~ Finally, powerful endpoint security that ISN'T a resource hog! ~
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