In addition here is a verbose output:

sdc: not found in pathvec
sdc: mask = 0x5
sdc: bus = 1
sdc: dev_t = 8:32
sdc: size = 11702837248
sdc: vendor = SCST_FIO
sdc: product = 0a1Fm75r3fC3oDLw
sdc: rev = 101
sdc: h:b:t:l = 12:0:0:0
sdc: path checker = tur (controller setting)
sdc: state = 2
sdd: not found in pathvec
sdd: mask = 0x5
sdd: bus = 1
sdd: dev_t = 8:48
sdd: size = 11702837248
sdd: vendor = SCST_FIO
sdd: product = 0a1Fm75r3fC3oDLw
sdd: rev = 101
sdd: h:b:t:l = 13:0:0:0
sdd: path checker = tur (controller setting)
sdd: state = 2
===== paths list =====
uuid hcil dev dev_t pri dm_st chk_st vend/prod/rev
0:0:0:0 sda 8:0 0 [undef][ready] ATA,ST3500641AS
1:0:0:0 sdb 8:16 0 [undef][ready] ATA,ST31000340NS
12:0:0:0 sdc 8:32 0 [undef][ready] SCST_FIO,0a1Fm75r3fC3oDLw
13:0:0:0 sdd 8:48 0 [undef][ready] SCST_FIO,0a1Fm75r3fC3oDLw
params = 1 queue_if_no_path 0 1 1 round-robin 0 2 1 8:32 4 8:48 4
status = 2 0 0 0 1 1 A 0 2 0 8:32 A 0 8:48 A 0
sdc: mask = 0x8
sdc: getprio = NULL (internal default)
sdc: prio = 1
sdd: mask = 0x8
sdd: getprio = NULL (internal default)
sdd: prio = 1
200000000d11ba481dm-3 SCST_FIO,0a1Fm75r3fC3oD
[size=5.4T][features=1 queue_if_no_path][hwhandler=0]
\_ round-robin 0 [prio=2][active]
\_ 12:0:0:0 sdc 8:32 [active][ready]
\_ 13:0:0:0 sdd 8:48 [active][ready]
params = 0 0 1 1 round-robin 0 1 1 8:16 5
status = 2 0 0 0 1 1 A 0 1 0 8:16 A 0
sdb: mask = 0x8
sdb: getprio = NULL (internal default)
sdb: prio = 1
SATA_ST31000340NS_9QJ39EV2dm-0 ATA,ST31000340NS
[size=932G][features=0][hwhandler=0]
\_ round-robin 0 [prio=1][active]
\_ 1:0:0:0 sdb 8:16 [active][ready]