Isilon: Node Firmware update errors with: Exception for InstallFirmware command: [Errno 54] RPC session disconnected.

Summary: On an Isilon node, during a firmware upgrade, the InstallFirmware operation aborts, logging an IOError Errno 54 caused by a Remote Procedure Call (RPC) session disconnection.

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Symptoms



While performing node firmware updates, the updates encounter an error on a node.

Using isi_upgrade_logs to gather the upgrade errors, the following error message is found: 
Starting /usr/sbin/isi_Upgrade_Agent.py InstallFirmware

2018-10-10 10:10:10,101 DEBUG Execute Command: InstallFirmware
2018-10-10 10:10:10,101 ERROR Exception for InstallFirmware command: [Errno 54] RPC session disconnected.


Other cases have reported additional output similar to:

2019-01-01 12:00:00,000 DEBUG Execute Command: InstallFirmware
2019-01-01 12:00:00,000 ERROR Exception for InstallFirmware command:

Devid 1:
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/site-packages/isi/net/rpc.py", line 698, in rpcCaller
  File "/usr/local/lib/python2.7/site-packages/isi/net/rpc.py", line 149, in __call__
  File "/usr/local/lib/python2.7/site-packages/isi/net/rpc.py", line 512, in _request
  File "/usr/local/lib/python2.7/site-packages/isi/net/rpc.py", line 122, in wait
  File "/usr/local/lib/python2.7/site-packages/isi/net/session.py", line 137, in wait
IOError: [Errno 54] RPC session disconnected.

Cause

.

Resolution

Perform a retry of the last action on the node where the error was encountered by running the following command replacing LNN with the node number: 
isi upgrade cluster retry-last-action LNN

After performing a retry, wait for a few minutes for the firmware updates to resume, if the error message returns a second time, escalation to Isilon support for further investigation.

Affected Products

Isilon

Products

Isilon, PowerScale OneFS
Article Properties
Article Number: 000167758
Article Type: Solution
Last Modified: 09 Dec 2025
Version:  4
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