DLm0045E Error getting status of /lockfs/LOCK/ file system: Input/output error

Summary: DLm0045E error is issued when the /lockfs/LOCK NFS mount point is unavailable for a short period of time. For DLm and Data Domain solutions, this alert may be issued for a Data Domain file system restart, panic, or failover event. ...

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Symptoms

DLm0045E: Error getting status of /lockfs/LOCK/ file system: Input/output error

/var/log/messages may show indications of the NFS "server not responding."

Cause

Storage array is slow to respond or temporarily unavailable. 

For DLm and Data Domain solutions, this alert is frequently caused by a Data Domain panic, file system restart, failover, or head reboot unexpectedly. The Data Domain file system failover in a high availability Data Domain can be as short as five minutes to transfer file system services, however the DLm alert is issued at only 60 seconds. 

Resolution

This issue can occur where the DLm storage array is slow or unavailable. Check the /var/log/messages file on the VTE for potential indicators such as 'server not responding'.

For DLm and Data Domain solutions, check the Data Domain nodes for uptime, recent Data Domain file system start, panic alert, HA degraded, and so forth, and if found, a Data Domain case may be required to investigate.  

Run a DLm Health check to investigate. If the issue persists for more than 30 minutes, investigate further. If no obvious cause is found, contact DLm Support.

Etkilenen Ürünler

Disk Library for mainframe DLm2500, Disk Library for mainframe DLm8500
Makale Özellikleri
Article Number: 000204852
Article Type: Solution
Son Değiştirme: 18 Nis 2023
Version:  10
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