Agent has stopped monitoring. The following errors are reported : COLL_DISABLED|DISK_FULL

On one my 12cR3 agents on windows machine , We saw agent stopped with this error

Agent has stopped monitoring. The following errors are reported : COLL_DISABLED|DISK_FULL

We checked the agent status

Copyright (c) 1996, 2013 Oracle Corporation.  All rights reserved.
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Agent Version     : 12.1.0.3.0
OMS Version       : 12.1.0.3.0
Protocol Version  : 12.1.0.1.0
Agent Home        : E:/oracle/product/12.1.0.3_agent/agent_inst
Agent Binaries    : E:/oracle/product/12.1.0.3_agent\core\12.1.0.3.0
Agent Process ID  : 5008
Parent Process ID : 4912
Agent URL         : https://DBhost:3873/emd/main/
Repository URL    : https://OMShost:4900/empbs/upload
Started at        : 2013-09-19 22:43:07
Started by user   : SYSTEM
Last Reload       : (none)
Last successful upload                       : 2013-09-19 22:48:24
Last attempted upload                        : 2013-09-19 22:48:24
Total Megabytes of XML files uploaded so far : 0.03
Number of XML files pending upload           : 0
Size of XML files pending upload(MB)         : 0
Available disk space on upload filesystem    : 1.98%
Collection Status                            : [COLLECTIONS_HALTED(
  UPLOAD SYSTEM Threshold (UploadMaxDiskUsedPct: 98) exceeded with 98.02316)]
Heartbeat Status                             : Ok
Last attempted heartbeat to OMS              : 2013-09-19 23:01:17
Last successful heartbeat to OMS             : 2013-09-19 23:01:17
Next scheduled heartbeat to OMS              : 2013-09-19 23:02:17

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Agent is Running and Ready

Our file system is more than 98% full but still has more than 60Gb free space.
Adding more space is not a option.

Solution :

At \sysman\config , edit the file emd.properties and add the following
UploadMaxDiskUsedPct=99

you can make it to 100% also.
then restart your agent

emctl stop agent 
emctl start agent

All good !!