https://community.hpe.com/t5/disk-enclosures/changing-raid-configuration/m-p/2519650#M1713 what you are talking about is raid migration from raid 1 to 5. None of the smart 2x family have this capability the controllers that can do this are as follows SA431 the SA4200 the SA5300 and the ROC [Raid on Chip]. Sun, 22 Apr 2001 23:00:00 GMT Ayman Altounji 2001-04-22T23:00:00Z https://community.hpe.com/t5/disk-enclosures/changing-raid-configuration/m-p/2519649#M1712 I am running a Compaq Proliant 2500 with Windows NT Server. the server has a Smart 2/P Array Controller providing RAID 1 with 2 arrays. Array A has 1 logical drive with 2 physical drives and Array B has 1 logical drive with 4 physical drives. I would like to change Array B to RAID 5, is this possible without having anything on my system wiped out? Fri, 20 Apr 2001 23:00:00 GMT https://community.hpe.com/t5/disk-enclosures/changing-raid-configuration/m-p/2519649#M1712 Ayman Altounji 2001-04-20T23:00:00Z https://community.hpe.com/t5/disk-enclosures/changing-raid-configuration/m-p/2519650#M1713 what you are talking about is raid migration from raid 1 to 5. None of the smart 2x family have this capability the controllers that can do this are as follows SA431 the SA4200 the SA5300 and the ROC [Raid on Chip]. Sun, 22 Apr 2001 23:00:00 GMT https://community.hpe.com/t5/disk-enclosures/changing-raid-configuration/m-p/2519650#M1713 Ayman Altounji 2001-04-22T23:00:00Z