I have a Pegasus2 R8 that I changed from a Raid 5 to a Raid 6. All data backed up and reloaded successfully. All files visible and accessible after reload. When mac OS 10.14.6 rebooted, error message "The disk you inserted was not readable by this computer."
Checked on different mac and with different cables yields same error message.
Mac Disk Utility shows Partition Map Not Supported; S.M.A.R.T. status shows Not Supported.
Promise Utility operates normally.
I obviously did something wrong when I did the conversion to Raid 6.
Raid 5 with 8 drives; no spare.
Raid 6 with 7 drives; 1 spare.
Stripe size 64kb
Sector size 512 bytes
Read Ahead/Write Back
Codec Scheme Q+Q
Operational Status OK, Synchronizing
Format (I believe): Mac OS Extended (Journaled)
I would appreciate any advice. My data is safe, although it takes more than a day to reload.