I’ve got the same problem and spent last night to solve my storage problems The following items are examples of failover driver controller events and path failover events:. This process continues until the ArrayIoWaitTime limit is reached. With the failover driver, two cases determine if a path has failed:. Busy wait time exceeded on failover command.
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A failback scan will cause the RDAC driver to reattempt communications with any failed controllers. Unit Attention retry count exceeded. The revised module and initrd names are shown in bold text. Examples of internal requests include those rdacc to rebalancing, path validation, and issuing of failover commands. How can I see if volumes have been added?
Duplicate module options detected.
RE: [dm-devel] Multipath setup and rdac questions
Unrecognizable sense key received. Can’t find certain answer. Load the standard HBA non-failover driver. Install the new RDAC driver using the make install command.
After you apply the kernel update and start the new kernel, perform these steps to build the RDAC Initial Ram Disk image initrd image for the new kernel:. Mark this reply as best answer, if it answered your question.
The lsdev utility provides a map of your array LUNs to their Linux block devices. Pinux most of the cases, no change is required if the kernel version is the same.
linux – RDAC MPP driver erratic path fail-over errors – Server Fault
Refer to your path failover driver documentation for more details. Home Questions Tags Users Unanswered. The mppSupport utility provides information about your system, array connection, and configuration for Sun Services to assist you with any problems you might have.
This option only works if the RDAC driver has been compiled with debugging enabled. Busy wait time exceeded on failover command.
Migrating the MPP/RDAC driver to the Linux DM-MP driver
Quiescence wait time exceeded. Error trying to allocate data structures. This list all arrays If you have more than one and ‘mppUtil -g n’ where n is your array number, to display more data on all actual paths.
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Re: [dm-devel] Multipath setup and rdac questions
To download the RDAC driver, go to:. The total number of paths to the storage array is the MaxPathsPerController value multiplied by the number of controllers. Posted April 9, How do I remove unmapped or disconnected devices from the existing host?
Mppp vendor specific multipath driver messages isn’t helping much: The command you listed “should” disable it, but perhaps there is a bug under XS 6. Without the SaveSettings keyword, the changes only affect the inmemory libux of the variable.
There are 2 ways of using the MPP rdac driver. Maximum paths per controller exceeded. Open failed on virtual bus node. But my problem was, that all multipathing worked fine via multipath. The initrd image is automatically created when the driver is installed by using the make install command. The host numbers assigned by the Linux middle layer start from 0.