Is it possible to add 2 more physical disks to a RAID 1 array (new disks identical to the old disks) on an H730P without destroying the original mirror? OMSA isn't showing an option to keep the original RAID type when I do a Reconfigure in the software, but is it maybe possible in the controller BIOS? And without destroying and rebuilding? I would reboot and check myself, but it's a heavy production server and I don't want to ask for a maintenance window to reboot it just to go poking around unless I've got a pretty good idea of what is or isn't possible beforehand. Thanks in advance!
Is it possible to add 2 more physical disks to a RAID 1 array
No, RAID 1 is two disks, no more no less. You may be able to reconfigure the virtual disk to another RAID level by adding more physical disks.
Dell EMC, Enterprise Engineer
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So, way down at the bottom of this post:
This guy claims to have done exactly that - reconfig from RAID 1 to RAID 5 on a Perc 710 with no reboot or data loss. Would the same be possible on that 730?