I've been using drbd for a decade, but this is my first experience with drbd 9.0.14. The resync is incredibly slow. Normally, resync takes a few seconds to a few minutes, but this is taking hours, advancing just a few hundredths of a percent every few seconds...
ha01_mysql role:Secondary disk:Inconsistent 001db01b role:Primary replication:SyncTarget peer-disk:UpToDate done:93.84 ha02_mysql role:Primary disk:UpToDate 001db01b role:Secondary replication:SyncSource peer-disk:Inconsistent done:84.49 Also, the numbers shown by drbdadm status are way different than what is shown under /sys... [root@001db01b 0]# cat /sys/kernel/debug/drbd/resources/ha02_mysql/connections/001db01a/0/proc_drbd 1: cs:SyncTarget ro:Secondary/Primary ds:Inconsistent/UpToDate C r----- ns:8 nr:175023740 dw:657162492 dr:615264242 al:2325 bm:0 lo:0 pe:[0;0] ua:0 ap:[0;0] ep:1 wo:2 oos:307063536 [======>.............] sync'ed: 36.4% (299864/470788)M finish: 1:00:41 speed: 84,300 (91,452 -- 80,028) want: 614,400 K/sec 11% sector pos: 373912576/3221127096 resync: used:0/61 hits:696233 misses:2854 starving:0 locked:0 changed:1427 act_log: used:0/1237 hits:842881 misses:5965929 starving:0 locked:0 changed:118214 blocked on activity log: 0 [root@001db01b 0]# cat /sys/kernel/debug/drbd/resources/ha01_mysql/connections/001db01a/0/proc_drbd 0: cs:SyncSource ro:Primary/Secondary ds:UpToDate/Inconsistent C r----- ns:370199208 nr:580 dw:1039815524 dr:197034909 al:50060 bm:0 lo:0 pe:[0;0] ua:0 ap:[0;0] ep:1 wo:2 oos:105671448 [=>..................] sync'ed: 10.0% (103192/114580)M finish: 3:50:34 speed: 7,632 (2,804 -- 4,988) K/sec 0% sector pos: 0/3221127096 resync: used:0/61 hits:188990 misses:364 starving:0 locked:0 changed:186 act_log: used:0/1237 hits:173070247 misses:3163320 starving:0 locked:0 changed:130073 blocked on activity log: 0 [sig]
_______________________________________________ drbd-user mailing list drbd-user@lists.linbit.com http://lists.linbit.com/mailman/listinfo/drbd-user