On Mon, 27 Jun 2005, Richard Sims might have said: > A big FYI for AIX 5.x sites... > > I spent most of the weekend pursuing a problem in our TSM system > where HSM operations could not proceed. The whole AIX 5.2 system got > so screwed up in the kernel that 'ls -lR /opt' and 'ls -lR /usr' > would hang, and nfsd was accumulating hundreds of unserviceable > threads. After some reboots I was able to isolate the problem to a > "seed" area: directory /etc/adsm/SpaceMan/candidatesPool/, where an > 'ls -l' on it would hang (loop, actually), which 'truss' showed to be > in a statx(). There were no errors in the AIX Error Log, the console, > or anywhere else. At Init 1, we rebuilt the directory and HSM could > proceed. > > Today, finally, AIX evidenced errors in the Error Log: > JFS_META_CORRUPTION and JFS_FSCK_REQUIRED (on /). This finally gave > me a solid keyword. That led me to APAR IY66404 for AIX 5.2, which > is quite new. (It has siblings for AIX 5.1 and 5.3.) Make sure you > have this applied to avoid this very nasty scenario resulting from an > AIX I/O serialization defect. You could end up with some unpleasant > data loss without the HIPER APAR. > > Richard Sims >
Is this patch specific to any AIX platform or all AIX 5.2 in general? Mike
