Hello All, I just tried change the queue_dept for one lun which is connected to the server with device-mapper multipath LUN1 (360060e80047f280000007f28000010b2) dm-146 HP,OPEN-V [size=25G][features=1 queue_if_no_path][hwhandler=0] \_ round-robin 0 [prio=12][active] \_ 2:0:5:85 sdbky 71:1760 [active][ready] \_ 2:0:4:85 sdbfg 134:1440 [active][ready] \_ 1:0:2:85 sdaoc 66:1216 [active][ready] \_ 0:0:5:85 sdaob 66:1200 [active][ready] \_ 3:0:2:85 sdalz 135:848 [active][ready] \_ 3:0:1:85 sdxv 128:592 [active][ready] \_ 1:0:1:85 sdvd 67:752 [active][ready] \_ 0:0:4:85 sdul 66:720 [active][ready] \_ 3:0:0:85 sdfp 130:176 [active][ready] \_ 2:0:3:85 sdbu 68:128 [active][ready] \_ 0:0:3:85 sdbs 68:96 [active][ready] \_ 1:0:0:85 sdbl 67:240 [active][ready] I set on all devices /sys/block/xxx/device/queue_depth to 4 But after few sec... They were changed to 5, and the number is increasing until it reach 16. Is there something in device mapper multipath what is changing the queue_depth? Thanks Jozef -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
