CLUVFY Pre-Check Errors:PRVE-0426

Findings

Verifying /dev/shm mounted as temporary file system …FAILED

rac2: PRVE-0426 : The size of in-memory file system mounted as /dev/shm is

      “1843” megabytes which is less than the required size of “2048” megabytes

      on node “discoveryrac2”

rac1: PRVE-0426 : The size of in-memory file system mounted as /dev/shm is

      “1843” megabytes which is less than the required size of “2048” megabytes

      on node “discoveryrac1”

Factors

The verification of /dev/shm as a temporary file system has failed on both nodes, discoveryrac2 and discoveryrac1. The issue is related to the size of the in-memory file system, which is currently set at 1843 megabytes. This size is below the required minimum of 2048 megabytes, leading to the failure indicated by the error code PRVE-0426. To ensure proper operation, the size of the /dev/shm file system must be increased on both nodes.

Solution

To address the issue with /dev/shm, perform the following steps on both nodes:

Check Current Size: Verify the current mount size using the command:

df -Ph /dev/shm

Mount /dev/shm: If /dev/shm is not mounted, use the following command to mount it:

mount /dev/shm

Resize the Mount: If it is already mounted or after mounting, resize it with:

mount -o remount,size=2G /dev/shm


After completing these steps on both nodes, the size of the /dev/shm mount should meet the required 2048 megabytes, resolving the PRVE-0426 error. Finally, re-run the cluster verification to confirm that the issue is fixed.

I hope you found this blog helpful! We’d love to hear about your experiences or any questions you might have please share your thoughts in the comments. Your feedback is greatly appreciate