DRBD Split Brain

hello guys, i have 2 drbd node (primary/secondary) I try to solve split brain without any lost data. How can i find last updated node ? Is there any command or something like ? Running : Drbd(8.9.10-2), Pacemaker, Corosync, Postgresql my auto solve config: net { after-sb-0pri discard

Postgresql and DRBD

Hello dear liste, I have really important database and it should not lost any data. Is it safe Postgresql, DRBD, Pacemaker, Corosyn structure. ? Thanks, Best.

Disk performance problem

Dear Friends; I have servers which contain SATA disks and SAS disks. I was testing the speed of writing on these servers and I recognized that SAS 10.000 disks much more slowly than the SATA 7200. What do you think about this slowness? What are the reasons of this slowness? Thank you for your h