Disk full event although dis is not full

Hello,

we have a HANA database running with revision 62.

After the filesystem for the log backup was not available (fileserver restart and mount did not reconnect) the database log went full.

The nameserver now cannot start and tells:

[11282]{-1}[-1/-1] 2013-08-24 00:43:07.470082 i EventHandler     EventManagerImpl.cpp(00647) : handleEvents(1)

[11282]{-1}[-1/-1] 2013-08-24 00:43:07.470119 i EventHandler     EventManagerImpl.cpp(00650) : --handleEvent: DiskFullEvent[id= 1, path= /sapmnt/log/HA1/mnt00001/hdb00001/, state= NEW]

[11282]{-1}[-1/-1] 2013-08-24 00:43:07.470156 i EventHandler     LocalFileCallback.cpp(00437) : [DISKFULL] restarting queue with 1 requests

[11282]{-1}[-1/-1] 2013-08-24 00:43:07.471884 i EventHandler     EventManagerImpl.cpp(00653) : --event not handled: DiskFullEvent[id= 1, path= /sapmnt/log/HA1/mnt00001/hdb00001/, state= HANDLING]

But the filesystem is not full.

df tells me:

df -h /sapmnt/log/HA1/mnt00001/hdb00001/

Filesystem            Size  Used Avail Use% Mounted on

/dev/sapmntdata       5.8T  947G  4.9T  17% /sapmnt

I already checked the note

Note 1679938 - Log Volume is full (log mode = legacy)

But this does not work for me, as the filesystem is not full.

Is there a chance to bring the system up ?

Do I need to change a parameter ?

Many thanks in advance.

Any help is really appreciated.

Andreas