I don’t know how deep RDAC technologies are used inside multipath. Email me about changes to this bug report. You must be logged in to post a comment. Share this post Link to post. After setting up a new install of

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WofFS – dm-multipath rdac IBM DS

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If no, please ensure all LUNs are configured mulltipath use the same path. Posted September 12, See the XenCenter logs for the full details. Using the standard configuration of multipath, I’ve seen that one controller offers one Lun as active and one as ghost, the other controller do the same think. Windows Server includes many enhancements for connecting to a Storage Network. This is documented in the XenServer Admin Guide.

Home Questions Tags Users Unanswered. In the event that a device in the path fails, Microsoft MPIO automatically redirects IO to an alternate path for continued application availability. The DSM will pick the paths from primary mmultipath 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. By using multipat site, you acknowledge dd3400 you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.


Sign up using Facebook. The secondary never became active. The MPIO framework is an extensible model allowing storage vendors to develop plug ins optimized for their hardware. Ask Ubuntu works best with JavaScript enabled.

We asked the customer to check with any additional Ds400 side config, like automatic lun transfer, is necessary. Joseph Salisbury jsalisbury wrote on I don’t know how deep RDAC technologies are used multipatj multipath. Microsoft MPIO use redundant physical path components—adapters, cables, and switches—to create logical “paths” between the server and the storage device. Yeah, i have configured this issu on my DS The system is running Ubuntu The mppUpper driver module is not loaded.

The DSM will specify a primary path and a set of standby paths.

Multipathing Support in Windows Server 2008

Hello, I’ve the following scenario: Depending on how that turns it we may actually have a real failover bug. Log in to reply. The Microsoft DSM provided as part of the complete solution in Windows Server includes support for the following policies:. If the primary path fails, one of the standby paths will be used.


This little direct me to right road. If all of the active paths fail then one of the standby paths is used. System storage is connected to ibm system x – with fibre cable.

So the paths not showing up with a config file error, a few well placed regexp and a proper blacklist to filter out the internal disks solved that. Please sign in to comment You will be able to leave a comment after signing in Sign In Now.

Standby paths must be listed in decreasing order of preference i. The internal root disk is sdc. We are working on a fix.

Last modified: June 3, 2020