Hello,   Just wanted to make sure you understood risks.  Also what EQL firmware are you using?  When was last time you checked for drive firmware upgrades?  Before doing the expansion I would at least check for updated drive firmware.    At the Group CLI enter:   GrpName>member select MEMBERNAME raid10-nospares   This will start an expansion onto the spare drives.  The space will be available once the expansion completes.    So there won't be any lost data or reconfiguration needed  Regards, Don  
Hello,  Just a quick one, we're running a PS4100 in RAID 10 with 2 hot spares.  I'd like to expand the RAID to incorporate the 2 drives, is that possible or do I have to teardown the whole RAID? Thanks 
Equallogic PS4100 - RAID 10 Expansion using hot spare