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DS cofigured with all path in one group all path hostgroup. If one or more of the primary paths become available, DSM will start using them standby paths in their order of preference. Comment on this change optional. I have no idea what kind of test should be done to verify which host type are most reliable. The mppUpper driver module is not loaded.

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Comment on this change optional. Multipath does not work by now So for SANs that already support mkltipath multipath, all you have to do is create a config multiapth with “something” in it and then update the initrd to copy that to the ramdisk so it’s available at boot, so you can mount your disks. Unanswered question This question has not been answered yet. It should “just work”.

Standby paths must be listed in decreasing order of preference i.

Multipathing Support in Windows Server 2008

However when we tried testing failover using a scsi “delete” of the primary member. James how to repair?? This bug affects 1 person.


Log in to reply. If yes, you cannot use RDAC module. Now the paths are up, and stay up.

System storage is connected to ibm system x – with fibre cable. Sign up or log in Sign up using Google. You must be logged in to post a comment. I have no idea what kind of test should be done to verify which host type are most reliable.

Multipathing Support in Windows Server – Windows Storage Team

Most storage array vendors will automatically configure timers during installation of their DSM package optimized for ds300 array. This little direct me to right road.

Core storage components including MPIO. The DSM will pick the paths from primary paths for processing requests as long as at least one of them is available, DSM will pick a standby path only when all the primary paths fail.

Sign up using Email and Password. In the event that a device in the path fails, Microsoft MPIO automatically redirects IO to an alternate path for continued application availability. Linux — for rest of the World. Any advise would be appreciated! I not able to collect the posiblity of error.


Upvote if multipatg also have this question or find it interesting. You are not directly subscribed to this bug’s notifications. A set of paths are configured as active and a set of paths are configured as standby. Any one of the available paths could be used as primary path, and the remaining paths will be used as standby paths.


You are right – things working! Share this post Link to post.

I set up a mock test environment to test the the filtering by PCI device. Attached scsi generic sg3 type 0 Email Required, but never shown. I will be thankful if anybody tell me about the possible causes. See the XenCenter logs for the full details.