Re: Would you ever recommend Shared Disk Failover for HA?

Admins,

https://www.postgresql.org/docs/current/different-replication-solutions.html
is listing a shared disk solution for HA.

It also mentions, "that the standby server should never access the shared storage while the primary server is running."

In a datacenter, where we have postgresql servers running on vmware VMs, the shared disk configuration sounds like an appealing solution: simple configuration, single server at a given time, simple fail-over, fully non-or-nothing write mechanics, no hazzle with replication_slots during/after failover, etc...

But "Attempts to use PostgreSQL in multi-master shared storage configurations will result in extremely severe data corruption" (https://wiki.postgresql.org/wiki/Shared_Storage).