Hi [NAME],   For your situation, it's weird to have foreign configuration to contain not the original configuration. For this, the support need to analyze the PERC log to confirm the situation to proceed for next course of action. I am unable to provide a suggested step, due to that it might cause data lost, therefore, the support need to analyze the logs. Do contact the support with the logs ready.    [URL]
We had a problem with a power cable, causing a lot of disks to disappear temporarily. After we fixed it, most volume groups came online again, but a 7 disk RAID5 volume did not, it was instead split into two foreign configs (see below). That is, all 7 disks of the volume are available, but the controller thinks 5 of them are in one volume group, and the remaining disks are in the other two (this must be clearly a firmware bug, as neither group could have been degraded). How can I recover from this situation and merge the two groups into the single group that they are?   Foreign Topology :================ ----------------------------------------------------------------------------DG Arr Row EID:Slot DID Type State BT Size PDC PI SED DS3 FSpace TR----------------------------------------------------------------------------0 - - - - RAID5 Frgn N 54.571 TB dsbl N N dflt N N0 0 - - - RAID5 Frgn N 54.571 TB dsbl N N dflt N N0 0 0 :0 0 DRIVE Frgn N 9.094 TB dsbl N N dflt - N0 0 1 :1 1 DRIVE Frgn N 9.094 TB dsbl N N dflt - N0 0 2 :2 2 DRIVE Frgn N 9.094 TB dsbl N N dflt - N0 0 3 :3 3 DRIVE Frgn N 9.094 TB dsbl N N dflt - N0 0 4 - - DRIVE Msng - 9.094 TB - - - - - N0 0 5 - - DRIVE Msng - 9.094 TB - - - - - N0 0 6 :5 5 DRIVE Frgn N 9.094 TB dsbl N N dflt - N1 - - - - RAID5 Frgn N 54.571 TB dsbl N N dflt N N1 0 - - - RAID5 Frgn N 54.571 TB dsbl N N dflt N N1 0 0 - - DRIVE Msng - 9.094 TB - - - - - N1 0 1 - - DRIVE Msng - 9.094 TB - - - - - N1 0 2 - - DRIVE Msng - 9.094 TB - - - - - N1 0 3 - - DRIVE Msng - 9.094 TB - - - - - N1 0 4 :6 6 DRIVE Frgn N 9.094 TB dsbl N N dflt - N1 0 5 :4 4 DRIVE Frgn N 9.094 TB dsbl N N dflt - N1 0 6 - - DRIVE Msng - 9.094 TB - - - - - N---------------------------------------------------------------------------- Foreign VD List :=============== ---------------------------------DG VD Size Type Name---------------------------------0 255 54.571 TB RAID5 RV51 255 54.571 TB RAID5 RV5--------------------------------- Update:   Forgot to mention, this is with an Perc H740P controller
Recover RAID5 volume split into two foreign configurations