Hi Adrian: On Fri, Aug 12, 2016 at 9:01 PM, Adrian Klaver <adrian.klaver@xxxxxxxxxxx> wrote: > "Specially if this happens, you may have some slightly bad disks/ram/ > leading to this kind of problems." > > Trying to reconcile that with all the physical machine 1 VMs sharing the > same RAM and physical disk, but the error only occurring on db3. > > Is the VM hosting db3 setup different from the VMs 1 & 2? They probably share the disk, bus, ram and disk controllers, but they surely do not share the disk SECTORS. "Weak" ( nearly failing ) tracks can give this kind of problems ( although the disk CRC should catch all odd number of bit errors , but with VMs in the mix who knows where the messages could end up ). Francisco Olarte. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general