Re: [ClusterLabs] Antw: DRBD and SSD TRIM - Slow!

2017-08-02 Thread Eric Robinson
urg.de] > Sent: Tuesday, August 01, 2017 11:28 PM > To: users@clusterlabs.org > Subject: [ClusterLabs] Antw: DRBD and SSD TRIM - Slow! > > Hi! > > I know little about trim operations, but you could try one of these: > > 1) iotop to see whether some I/O is done during tri

[ClusterLabs] Antw: DRBD and SSD TRIM - Slow!

2017-08-02 Thread Ulrich Windl
Hi! I know little about trim operations, but you could try one of these: 1) iotop to see whether some I/O is done during trimming (assuming trimming itself is not considered to be I/O) 2) Try blocktrace on the affected devices to see what's going on. It's hard to set up and to extract the