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Add a parameter in FILESYSTEM KM to show the status of the filesystem

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I understand we have a parameter "FSMOUNTStatus". But this one is only used to show if the FILESYSTEM is mounted or not.

There's a chance that the FILESYTEM is mounted but not available in the system to use.


Test steps:


1.Mount a filesystem called “/test”.


$mount -t nfs /test



Filesystem           1K-blocks      Used Available Use% Mounted on


                      18134344   7402360   9810796  44% /

tmpfs                   506540         0    506540   0% /dev/shm

/dev/sda1               495844     32586    437658   7% /boot   27228160   4802560  21036032  19% /test


$mount -v

/dev/mapper/vg_linux6-lv_root on / type ext4 (rw)

proc on /proc type proc (rw)

sysfs on /sys type sysfs (rw)

devpts on /dev/pts type devpts (rw,gid=5,mode=620)

tmpfs on /dev/shm type tmpfs (rw)

/dev/sda1 on /boot type ext4 (rw)

none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)

sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) on /test type nfs (rw,vers=4,addr=,clientaddr=



2. Disable the Network Interface of the filesystem “/test” which binding to.

3. "df" command no longer show it however the "mount -v" command still show it.

4.  In this case the FILESYSTEM KM will not report the /test is no longer available. the "FSMOUNTStatus" parameter still keep giving OK data point.



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