FC zoning in infrastructure ESX 3.5 with Brocade silkworm 200e of and IBM DS4700 SAN

After reading the guide of config of SAN fibre channel vmware, (Chp 4 pg 58-62 on the IBM DS4000 storage systems), I have a few questions.  First of all, the guide indicates that you must use political multi-channel MRU (most recently used) but when taken with the support of IBM, they recommend using LRU. Does anyone have any experience with this setting?

The guide also gives an example how to configure a highly available failover of the SAN (pg 59) design.   I wired mine the same as recommended in the guide.  Attached a photo of my situation.  I'm not sure if I am zonine this correctly.  Ideally, I would like to have this zoning configuration in "single-target only initiator" (safer) or single initiator target multiple configuration. He'll just be (2) large VMFS LUNs grouped in a storage of partitions in storage manager that both ESX servers must see so that HA and vmotion work.   Advice to shoot me in the right direction?

In the Storage Manager, I created a host with a host LNXCLVMWARE type group and is an Alias for each HBA (2 per ESX server) so that I can see the logical drives on the SAN.  I have no configuration of areas now switches from and in the ESX boxes, I can see the disks of SAN storage and add them very well if I choose 'add a storage '.  Target SCSI 0 watch path on disk and when I click on manage paths, the two first show 'dead' and then the last two are 'on' and 'active'. By default, to make these switches multitracks with on any config?

Someone knows any good tutorials on zoning practices for a vmware environment? I checked what follows, but need more information.

http://www.yellow-bricks.com/2008/10/28/single-initiator-zoning/

http://SearchStorage.TechTarget.com/Tip/1, 289483, sid5_gci881375, 00.html

I have a lot of DS4700 in similar environments, zoning is easy.

Each host adapter must be zoned to two port controller, for example:

Host a HBA1 to port CTRL A,

Host A HBA1 to port CTRLB B,

Host a HBA2 to port CTRLB A,

Host A HBA2 to port CTRL B

In front of ports for host b.

This is an example, a person prefers to use other combination (ABBA, etc.).

The result in this configuration is to see 4 paths to each LUN.

MRU is the only option for DS4000 family, it is the default value for ESX 3.5, take a look at this setting.

Best practices recommend that you disable AVT for the topology of the LNXCLVMWARE host. I usually haven't changed that. In DS4000 firmware version 7. XX, this setting is disabled by default.

I also suggest you to remove the LUN ACCESS to the vmware host group.

Tags: VMware

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