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4 Posts
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111222
February 17th, 2016 09:00
Connecting RDM volumes on Equallogic PS6100 to virtual machines.
Hello.
I have this weird problem on Equallogic PS6100 storage. Here hoping that I can have some sort of answer or advice to further troubleshoot and hopefully a solution to the problem.
Objective
I require RDM disks to be install to virtual servers through Equallogic PS6100. The RDM disks will be used for Windows clustering.
Below are the infrastructures on my environment.
1 unit of Equallogic PS6100.
3 units of ESXi 5.5 servers. (2 NICs connected to the PS6100)
2 virtual machines running Windows Server 2012 R2 meant for windows clustering.
I have created 6 volumes on the Equallogic PS6100 but only manage to connect 5 volumes to the two windows servers. I need all 6 volumes to be connected to both servers as RDM disks. Somehow the 6th volume is giving me a problem whereby both servers manage to detect the LUN but I can't install them. By the way the connections are on ISCSi.
Once I install the 6th volume on to one of the window server the other server will no longer be able to detect the LUN anymore. Hence I can't install this volume on to both servers.
I have tried scanning the LUN volumes on all 3 ESXi servers numerous times and still I can't install this 6th volume to both servers. I have even migrated the windows servers to all 3 ESXi servers and still having the same result.
Any advice in here will be highly appreciated.
Thank you.
qwertyo
4 Posts
0
February 23rd, 2016 17:00
Manage to solve the problem from a working colleague. Problem was resolved by adding a new scsi controller to the vm. After adding the controller either shutdown or restart the vm. Doing so I was able to discover the LUN and install the RDM disk to the servers.
qwertyo
4 Posts
0
February 18th, 2016 18:00
Hi Donald,
Thank you for your valuable suggestion. I would try this method as a last resort if I can't bring up my existing setup. I have the logs of the Equallogic with me, I don't mind uploading it but how can I do it in here? Sorry as I 'm still new in this forum.
qwertyo
4 Posts
0
February 21st, 2016 20:00
Hi Don,
I have already open a support case with Dell and have also send in the logs. On my end I'm still troubleshooting the problem. I have created a new volume for testing purposes and still I'm getting the same problem. Wondering if Dell could remote in to the system and have a look on the problem?