Without change to the FC switch to mode mode end-host FC

In the window of maintenance last night, I was going to spend one of my systems UCS switch FC FC end-host Mode. The intention was to be able to reach the storage systems via an external FC SAN, instead of the current situation where storage is directly attached to the FIs. The UCS system in question is redundant fabric 6248UP of interconnections, blades are all of the B200M2 or the B200M3, and infrastructure (UCSM, FIs and IOM) running version 2.2(3a).

The plan was relatively simple. First of all, I would like to change FI B mode end-host FC. Once this has been done re - I would record vHBAs the blades attached to the fabric B in my storage system, so that they could access their storage via the external SAN. Then I go through all the blade servers and ensure that they had access to storage multipath healthy and tolerant, how I would like to repeat the process for FI.

It turned out to be a disaster, however. Once I started the process of change FI B FC end-Host mode, FIs times restarted, and all servers access storage and network. When they came again, both of them had changed the fashionable end-host FC, which means that none of the blades had access to their storage volumes more. So there is nothing to do but to return the change. Yet once, two FIs restarted at the same time and they both returned to the top in switching mode of CF. A few hours later, after have rebooted most of blade servers and cleaning applications having failed, we were in normal production.

So what I was asking here why on Earth the two of my FIs restarted at the same time. Is this a known bug? The user interface would certainly think one can ignore at a time as I had planned, because the CF implemented end-Host Mode action link is on the page of each individual FI in UCSM (under hardware-> connections-> interconnection fabric A fabric / B). (So the action Set FC Switching Mode of link, incidentally.) Also, when I click on this link, I get a warning saying local ' are you sure you want to set the mode of end-host FC? If you select Yes , the fabric of interconnection will restart and this application will disconnect'. Note the use of the singular here; the warning refers to an single fabric of interconnection, which is perfectly logical that the change was requested only on one two FIs.

Torus

I quite understand your point!

The wording is misleading, because it is not in order with a completed receipt one.

That's why Kenny of the TAC wrote the answer above.

In my opinion, the documentation must be corrected.

Tags: Cisco DataCenter

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