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New Member

Isl going down


           One of my customers has  9513 mds and many blade chaotic cisco fc switches (IBM) . He has about 3500 zones in a zone set which is being fully distributed . He keeps getting memory errors when he makes the change to a zone set and tries to activate it . He is running sanos . Are there any recommendation that might assist him .

New Member

Isl going down

MDS switch offers 8000 zones per switch with 16,000 zone members per physical fabric (includes all VSANs)

Please refer to configuration limit guide.

Zone Member Configuration Guidelines are even more important to optimize the resource usage on the switch.

Zone config best practice clearly indicates:

"The best practice is to avoid configuring large number of targets and or or large numbers of initiators in a single zone. Such configuration wastes switch resources by provisioning and managing many communicating pairs (initiator-to-initiator or target-to-target) which will never actually communicate with each other. For this reason, single initiator with a single target is the most efficient approach to zoning."

The following guidelines must be considered when creating zone members:

•Configuring only one initiator and one target for a zone provides most efficient use of the switch resources.

•Configuring the same initiator to multiple targets is accepted.

•Configuring multiple initiators to multiple targets is not recommended.

If the zone activation or changes run into issues off and on..quite possibly the zoning configuration best practices could be lacking.

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