We were in a cituation that needs to extend the virtual disk capacity which is pulled from Dell MD 1000.
So we got three new 300 GB SAS drives and going to insert them in to empty slot in MD1000. Before doing any reconfiguration in MD1000 you must take the full back up of the data where you are re sizing.
Inserted 3 HDD in to empty slot and went to Dell Open Manager to see the status of these disk. It has to be appear as un assigned disk.
But one of the disk is showing Foreign Disk . And we can’t use this disk until it become normal data disk. In order to get rid of this we need to clear the attribute from PERC. Here is the steps
Go to Storage –> choose PERC 6/E Adapter –> On the Properties tab click on “Information/Configuration”
In the “Controller Tasks” drop down of Avaialble Tasks you should see an option for “Clear Foreign”. Select this–> Click on “Execute” which is just below the drop down.
Yup. It’s become normal disk and we can use this to add in to existing RAID.