Isilon: What is a shared merge lock
Summary: A shared merge lock is a Read-Write on every node in the cluster. Shared merge locks are used to ensure that the cluster is inactive when nodes are being merged to prevent corruption. A shared merge lock is used whenever group changes are made. This is so that the group being modified, and the node being joined, added or failed can agree on the lock state. ...
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Instructions
To confirm whether any nodes have a merge lock, run the following command:
isi_for_array -s sysctl efs.gmp.merge_lock_state |grep EXCLUSIVE_WAITING
If any nodes have the merge lock, a message similar to the following is returned:
<node identifier>: efs.gmp.merge_lock_state: EXCLUSIVE_WAITING
If running the sysctl efs.gmp.merge_lock_state command returns EXCLUSIVE_HELD or EXCLUSIVE_WAITING responses for more than a few seconds, contact Dell Technical Support for assistance.
Affected Products
IsilonProducts
PowerScale OneFSArticle Properties
Article Number: 000020263
Article Type: How To
Last Modified: 01 Jul 2025
Version: 4
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