For testing purpose, I try to recover a Fas2520 cluster mode 8.3.2 from almost factory configuration with external copy of system configuration backup.
I didn't deal with users data, I just want to recover node, aggregates, volumes, qtree, svm and so on configurations.
I made several tests but I think something missing in my procedure. Each time I got ghosts aggregate: newly created root aggregates at boot after zeroing disk are only in WAFL and all recovered aggregates from backup file (included old root aggregates aggr0) are only in VLDB and don't got any attributes (no size defined, not shown in "aggr show" command)
How i proceed:
1 - Initialize FAS : disable the HA capability, disable storage failover for both nodes, Halt the system on each nodes and boot in maintenance mode, Make all aggregates offline and destroy it, Remove partitions and disk ownership, Boot again with option 4 and initialize all disk (zeroing).
2 - Boot each node from Service Processor and put basic configuration (IP netmask gateway ...)
3 - On each node, enable "network options switchless-cluster modify " , rename node with previous name, import external copy of backup file, and restore the node from this backup file.
4 - On node A , restore cluster with "configuration recovery cluster recreate -from backup " then join the node B to cluster with "system configuration recovery cluster rejoin -node xxx
5 - Finish process with "system configuration recovery cluster modify -recovery-status complete" and "cluster ha modify -configured true" and "storage failover modify -node xxx -enabled true" for each node
Sorry if my english is not correct and thanks in advance for reply.