Hi Fredric,
You should have read this before and trust me ( a bit ) . This does not work.
As said above, we are now migrating ( for a customer ) to multible replication target servers where we migrate from 1 120 TB VMWARE(1k vm's) Dedicated Container Pool on one Server, to 2 Servers with 3-4 Pools. In Addition we use new Servers with 4Ghz+ and Flash for those Containers ( because of the tiny block size ) . For DR we have then 2 Servers to rebuild in paralell with smaller Containers .
Rebuilding the Containers will be the time to count on. The Faster the total System , the smaller the Container Pool brings availability for restore operations .
If Randsomware happens u need to take care which versions are able to be restored, so restoring all version ( the container) could start immediately , and if this does not take tooo long this is fine .
So we (will hopefully) end up with following @Customer:
* Criestie Image Backup for very critical Systems ( stgrule copy to Tape )
* Some big File Export ( encrypted )migrate from disk to LTO directly.
* 2 Replication Target Servers with 4 tapes each
* new HW for Replication Targets CPU/Disk ( need to be faster than primary ... )
* Flag VM TAG for importants ( MC ) , use different Container Pools
As said i have seen 15-35TB / Day repair times on Containers, so it depends a LOT on Server HW + chuck size.
2 Server in paralell:
* Rebuild Server - restore DBB
* Rebuild 1 Container ( eg. VMWARE MC Gold Systems )
* Restore Image Backups and Exported Big files could start immediately
* Rebuild 1 Container done .
* Restore Gold VM's
* Rebuild 2 Container ...
=> prepare a lot of LOG Space, and you will need to do DBB in between .
So if prepared and divided by importance, first restore procedures could start at day1 when the HW is available again. ( OS,SP and DBB Restore if documented and tested could be done within 5-8 h )
If everything is gone u need to bring the vCenter, Datamover for hotadd back also . Restore vCenter via ESXi (nbd) was always very slow and it was also huge with a lot of disks . I am not an expert in vCenter - but i think building new and restore configuration would be faster .
The worst case i was "in" , that arround 250 TB ( one Pool) took us about 10+ days to repair from Tape. So this is nothing u want at all again.
Best regards, Dietmar