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Fix Timeout Error while mounting a LUN in NetApp SnapDrive

· 2 min

When you are trying to mount a LUN (by using Connect Disk) in SnapDrive, you may get an error saying:

A timeout of 120 secs elapsed while waiting for volume arrival notification from the operating system.

This generally occurs when you have created a LUN using the NetApp System Manager first, and then tried to connect to it in SnapDrive.

The reason for this error message is that when SnapDrive is connecting to a disk, it expects to see a formatted partition being connected - and when this doesn’t occur, it doesn’t know what to do and times out.

NetApp LUN Timeout

NetApp LUN Timeout

Clean Up The Mess#

As the LUN mapping has failed half way through, you need to remove the igroups that have been added to the LUN, otherwise you will receive a The specified LUN /vol/xxx is already mapped to at least one initiator error.

lun unmap /vol/YourLUNName youriGroupName

You will get a message back saying the igroup has been unmapped from the LUN.

Connect The LUN Again#

Open SnapDrive and start connecting to your LUN again, as the process starts to occur you will see the following status messages appearing:

Connect the LUN Again

Connect the LUN Again

LUN Attached as Un-formatted Volume

LUN Attached as Un-formatted Volume

LUN Attached as Un-formatted Volume

LUN Attached as Un-formatted Volume

Format the Disk

Format the Disk

SnapDrive should now discover the disk and map it correctly. To prevent this occurring in the future, create your LUN’s using the SnapDrive interface instead of NetApp System Manager, as SnapDrive will format the LUN on creation.