8 Krypton

Hosts are not logged in the VMAX

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Hi, We have UCS blades which are cabeled and i can see on fabric with green light. Server team has connected ESX hosts to that UCS ports. I have zoned them to VMAX array. When i list logins in VMAX array i am seeing that the host is not logged in. Can you help me how to trouble shoot this. Below is the output from the list logins.

Director Identification : FA-14E

Director Port           : 0

                            User-generated                      Logged On

Identifier       Type  Node Name        Port Name        FCID   In     Fabric

---------------- ----- --------------------------------- ------ ------ ------

20000025b511b18f Fibre XXXesx2209       HBA2             9d0103 No     Yes

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8 Krypton

Re: Hosts are not logged in the VMAX

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Hi thank all for the reply. I got them up.

The target wwn's on UCS mismatched when we changed that evarything is good.

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rbhat23
6 Indium

Re: Hosts are not logged in the VMAX

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Make sure you have enabled NPIV on the switch side. If it's Cisco MDS switch run show feature and you can find out.

Also make sure that ports that are connected from FI to MDS switch are in the right VSAN. Do you see a flogi for VMAX FA (14-E0) on the fabric? Make sure that the port it's connected on the MDS switch is on the right VSAN. Shut and noshut the ports to make sure.

Hope this helps.

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8 Krypton

Re: Hosts are not logged in the VMAX

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be careful doing "shut" on the switch, if NPIV is working there are multiple FLOGI connecting through the port ...you shut that port and they all lose connectivity.

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8 Krypton

Re: Hosts are not logged in the VMAX

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Its logged in the fabric, It not logged into the array

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8 Krypton

Re: Hosts are not logged in the VMAX

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Some OS'es / HBA drivers will log out of FC targets if there is no IO activity or no active volumes on those targets... Can you see the targets/LUNs from the host side (e.g. with the inq utility)?

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8 Krypton

Re: Hosts are not logged in the VMAX

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there is no inq for ESX. If it's logged-in to fabric but not to array, check your zoning.

8 Krypton

Re: Hosts are not logged in the VMAX

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Have you tried allocating some storage from VMAX and try to write it to that device just try some 2 TB allocated if I/O is established you can see the logins.

You can make sure that the zoning by checking that is on the correct VSAN, on both the fabrics.

Check the switch port for FlogI and whether you can see the Right WWNs.


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8 Krypton

Re: Hosts are not logged in the VMAX

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I didn't catch the mention of ESX (reading comprehension fail on my part)... but the fact that there's an entry in the FA login table at all means that the host WWN did login to that FA at one point -- so either the zoning is correct, or it was correct at one point and something has been changed/broken, or ESX has logged itself out of the VMAX FA target due to lack of IO activity. So in addition to basic zoning/FC path troubleshooting, I'd check things from a host perspective as well -- try to discover VMAX devs down that path with the vSphere Client, and/or generate some IO from the host side and see if it logs back in.

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8 Krypton

Re: Hosts are not logged in the VMAX

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Hi thank all for the reply. I got them up.

The target wwn's on UCS mismatched when we changed that evarything is good.

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