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On CFS, SmartIO is caching writes although the cache appears as nocache on one node (3760253)

On CFS, SmartIO is caching writes although the sfcache list output shows the cache in nocache mode on one node. The OS mount command also shows the file systems as unmounted. This issue is due to a known bug that is documented in the Linux mount manual page. The /etc/mtab file and the /proc/mounts file, which are expected to have entries for all the mounted file systems, do not match. When the sfcache list command displays the list of file systems that are mounted in writeback mode, sfcache list refers to the /etc/mtab entries for the mount status of the file systems. As a result, sfcache list may sometimes show a writeback enabled file system as umounted while in reality the file system is still mounted. The /proc/mounts file correctly shows the file systems as mounted.

Workaround:

Verify that the file system is mounted through the contents of the /proc/mounts file.

On CFS, SmartIO is caching writes although the cache appears as nocache on one node (3760253)

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