1

Multipath performing very poorly RHEL/HSV200

view story
linux-howto

http://serverfault.com – I'm running a RHEL 5.5 with multipath@HSV200 storage system. The disk performance for write is VERY poor comparing to Windows-system counterparts (which are using the same storage and multipath). Here are the results: mpath17 (3600508b400105f9d0002100000780000) dm-12 HP,HSV200 [size=850G][features=0][hwhandler=0][rw] \_ round-robin 0 [prio=100][active] \_ 2:0:1:30 sdaw 67:0 [active][ready] \_ 1:0:1:30 sdc 8:32 [active][ready] \_ round-robin 0 [prio=20][enabled] \_ 2:0:0:30 sdau 66:224 [active][ready] \_ 1:0:0:30 sda 8:0 [active][ready] `atop` result (HowTos)