OS: Netware 6.0 SP5

"Insufficient disk space on volume <VOLUME> prevented a newly decompressed
file from being commited to disk in its decompressed format when the file
was closed"

where <VOLUME> is either: CACHE1, CACHE2, CACHE3, or CACHE4

I keep on getting the above message even when my SYS volume has 2.65GB of
Free space and my DATA volume has 15.5 GB of free space available. I get
this message daily. I have purged the files on both volumes and message
still appears.

Any solution, recommendation, or advice is greatly appreciated.