Hi,  It is strickly advised not to expand the RG0 under any circumstances.  It is not possible to move the system luns from Vault Drives to SATAII . Because of the condition for Celerra LUN migration :  The drive type is similar.. (FC to FC)  Refer emc144545  Regards, Naveen
hello   we have a Celerra NS-120 with a CX4-120 as Backend Storage. The CX4 has:  7x fiber disks , 10 x Sata II disks and 2 hot spares (one FC and one Sata)  the first 5 disks are the vault drive with also Celerra software install on them  is it possible to expand the Raid Group 0 (Raid 5 Vault drives) with the 2 remaing disks without any problem?  and another question can we migrate the Celerra System Luns from the Vault Drives to a Sata II Raid Group?    Any feedback would be greatly appreciated.  Regards,  Manolis
NS-120 Vault drive expansion