Over the last several days the available space on the SYS vol. has fluctuated a great deal in very short time spans. Historically there is approx 60% available disk space on the SYS vol. Now within a couple of minutes the available space will diminish to 3%, the server will complain of low disk space and then, 5 minutes latter the available space on the same volume will return to 60%. The console reports an error "trying to write data". The health monitor reports the server in "good health". On Monday I deleted extraneous dir. and restarted the server but the issue reappeared, any insight would be appreciated.