I have a Debian Linux machine with a 3Ware 9650SE RAID controller with a RAID6 array. tw_cli show this:
Unit UnitType Status %RCmpl %V/I/M Port Stripe Size(GB)
------------------------------------------------------------------------
u0 RAID-6 VERIFYING - 8%(P) - 256K 5587.9
u0-0 DISK OK - - p0 - 1862.63
u0-1 DISK OK - - p1 - 1862.63
u0-2 DISK OK - - p2 - 1862.63
u0-3 DISK OK - - p3 - 1862.63
u0-4 DISK OK - - p4 - 1862.63
u0/v0 Volume - - - - - 50
u0/v1 Volume - - - - - 5537.9
I was wondering, is it possible with the tw_cli tool to hot-add a new disk to the machine, add it to the array and extend the file system? I know I can resize the ext3 file system, I'm just not sure about the array.
I'm asking because once this machine is deployed, I don't want to turn it off when I want to add storage capacity.