Currently I have a RAID 5 with 3 disks. They provide a storage for around 550GB. I wanted to increase this size so I wanted to add the same disk as the RAID-configuration contains.
Now is my question: Can I just insert the HDD and expand the size of the RAID-array without losing data on this raid-configuration. I have read something about a battery (http://www.experts-exchange.com/Hardware/Servers/Q_26981452.html?sfQueryTermInfo=1+10+30+arrai+p400
) but I don't know if I have one and is this possible without a battery.
It is no problem to bring the server offline to add the extra storage but I have never increased the size of a RAID-volume. Just the initial configuration without any data on it.
My main concern is: Will there be any data-loss when I (try) to incrase the size of the RAID-configuration and how can I do this the best? Thanks!!
I have a DL380 G5 server.