New SAN devices show incorrect WWIDs
Issue
-
Two new LUNs both having 10GB size are shown as 1 mpath device with 16 paths. Instead system should create 2 mpath devices with 8 paths per LUN:
mpathl (SIBM_2145_0123456789) dm-40 IBM ,2145 size=10G features='1 queue_if_no_path' hwhandler='0' wp=rw |-+- policy='service-time 0' prio=50 status=active | |- 0:0:2:20 sdcw 70:64 active ready running | |- 0:0:2:21 sdcx 70:80 active ready running | |- 0:0:3:20 sdcy 70:96 active ready running | |- 0:0:3:21 sdcz 70:112 active ready running | |- 1:0:2:20 sdde 70:192 active ready running | |- 1:0:2:21 sddf 70:208 active ready running | |- 1:0:3:20 sddg 70:224 active ready running | `- 1:0:3:21 sddh 70:240 active ready running `-+- policy='service-time 0' prio=10 status=enabled |- 0:0:0:20 sdcs 70:0 active ready running |- 0:0:0:21 sdct 70:16 active ready running |- 0:0:1:20 sdcu 70:32 active ready running |- 0:0:1:21 sdcv 70:48 active ready running |- 1:0:0:20 sdda 70:128 active ready running |- 1:0:0:21 sddb 70:144 active ready running |- 1:0:1:20 sddc 70:160 active ready running `- 1:0:1:21 sddd 70:176 active ready running
Environment
- Red Hat Enterprise Linux 7
- DM-Multipath
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