I’ve tried installing linuxrdac Share this post Link to post. If so, are these working fine for you? Feed for this topic. Just out of curiosity, would you be willing to post your multipath. Conference call with Novell this morning, so something may come out of that.

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It prioritized the IO traffic so it should stay on the preferred path.

Storwize v and XenServer – Storage – Discussions

See my reply to a previous post: James Cannon Master 1, Citrix Employees 4, posts. If all does not help collect the state of the driver with mppSupport and log a support call with your storage vendor.

But in some specific conf it’s can work, with many “parrasits” in the fdisk -l but it’s works. Posted December 9, It won’t make it shareable either.

Multipath tools without rdac support is useless. Regards, Alexander Novikov Russia, Moscow. Also curious to know what you are using for mulitpathing? The information is provided in the Storwize documentation for settings up ds7400 hosts. Does anyone know how to get around this? When it’s come in? Storwize v and XenServer Asked by chhage Log in to reply. Home Skip to Content Micro Focus.


mppUtil shows no path to IBM StorWize v Disk System – Storage – Discussions

If working fine, is there any reason to get RDAC working again? AeroWB Enthusiast 66 Members posts. I tried using the standard qlogic driver from RHEL5 and device-mapper-multipath.

We are using a DS which has native support in multipath tools run multipath -t. When both paths to the storage are enabled, we have a very unreliable cluster. Mark gdac reply as best answer, if it answered your question.

The failover works fine, if I put a controller offline the device is still reachable from the other path. Is there anything special i need to know for adding the storwize to the existing pool?

This has been working well for our environment for about 10 months now. We have a DS Maybe i can test this on a single host before. Upvote if you found this answer helpful or interesting. We are working on a fix.

Now, the best part. Answered question This question has been answered.


Thanks in advance Maurizio. From what you say, ditching RDAC might be a better option.

IBM DS4700 and RDAC

Interesting that you are having success with multipathd. Just out of curiosity, would you be willing to post your multipath. Feed for this topic. I would be interested in taking a look at your document that you put together to see if I’ve missed something, but pretty sure I followed all the steps in all of the readme’s.