Thursday, August 12, 2010

Read/Write NTFS on my MacBook Pro

Today I tried to start my virtual linux machines (created in vmware workstation on windows to install/upgrade eBS environments) on my MacBook Pro. I downloaded a trial version of Vmware Fusion. When trying to start a virtual machine, Vmware would show me the following error 'Read only file system' and the machine would not start. It seemed I could not write to the folders containing the Vmware files. So, this is a Mac problem ?

It seems my Mac cannot work with the NTFS filesystem on my external disk. To solve the problem I downloaded the following file 'ntfs-3g-2010.5.22-macosx.dmg' from
After installing the file, I was able to open my virtual machines on my MacBook Pro.

Friday, August 06, 2010

Agent blocked....

In our 11g Grid Control I noticed an agent that was not uploading any data to the oms anymore.
When checking the status of the agent I noticed the following:

Last successful upload : (none)
Last attempted upload : (none)
Total Megabytes of XML files uploaded so far : 0.00
Number of XML files pending upload : 199
Size of XML files pending upload(MB) : 50.03
Available disk space on upload filesystem : 28.80%
Collection Status : Disabled by Upload Manager
Last attempted heartbeat to OMS : 2010-08-06 11:11:46
Last successful heartbeat to OMS : unknown

So, it seems to be disabled by the upload manager ??? When forcing an upload using the '
./emctl upload agent' it showed the 'oms version not checked' error. Because this a very common error, I decided the focus on the 'disabled by upload manager' error.

It seemed the agent was blocked for some reason. To fix this problem I did the following :

1. In Grid Control 11g go to Setup->agents-> Misconfiguration Alerts and Blocked Agents

You will see the 'blocked' agent in this section.

2. Go the home page of the blocked agent and in the right upper corner press the button 'Resynchronize'
3. When succesful go back to the setup page in step 1.
4. Unblock the agent
5. force an upload on the command line..

./emctl upload agent
Oracle Enterprise Manager 11g Release 1 Grid Control
Copyright (c) 1996, 2010 Oracle Corporation. All rights reserved.
EMD upload completed successfully

The agent is up and running again.