LinuxQuestions.org
Welcome to the most active Linux Forum on the web.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices


Reply
  Search this Thread
Old 03-29-2015, 10:25 PM   #1
rookee
LQ Newbie
 
Registered: Jun 2014
Posts: 28

Rep: Reputation: Disabled
Need help regarding multipaths on RHEL


Hello Sirs,

In the below output for few of the hosts/paths there are 4 links and for few there are 2. Why is that so. How do I find out how many paths are there in total that are connected and in use. We are using native multipaths. How do I know what file systems are there on what devices. Please explain or direct me to a link where I can learn about multipaths. Also please explain the difference between "multipath -ll" and "multipath -l"




root@xxXXxxXX [/root]
# multipath -ll
mpathr (820060e8006d945444444d9458282183e) dm-21 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:41 sdbi 67:192 active ready running
`- 2:0:4:41 sdfd 129:240 active ready running
mpathak (8238a95f2258000748844444444444416) dm-15 IBM,2145
size=1.0T features='0' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 1:0:0:6 sdh 8:112 active ready running
| |- 2:0:1:6 sdds 71:160 active ready running
| |- 1:0:1:6 sdt 65:48 active ready running
| `- 2:0:0:6 sddg 70:224 active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
|- 1:0:2:6 sdaf 65:240 active ready running
|- 2:0:3:6 sdeq 129:32 active ready running
|- 1:0:3:6 sdar 66:176 active ready running
`- 2:0:2:6 sdee 128:96 active ready running
data16 (820060e8006d945444444d94582821833) dm-67 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:30 sdcw 70:64 active ready running
`- 2:0:5:30 sdgr 132:112 active ready running
mpathe (820060e8006d945444444d94582821f17) dm-45 HITACHI,OPEN-V
size=35G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:12 sdce 69:32 active ready running
`- 2:0:5:12 sdfz 131:80 active ready running
data0 (820060e8006d945444444d94582821815) dm-43 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:14 sdcg 69:64 active ready running
`- 2:0:5:14 sdgb 131:112 active ready running
mpathq (820060e8006d945444444d9458282184a) dm-34 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:53 sdbu 68:128 active ready running
`- 2:0:4:53 sdfp 130:176 active ready running
mpathaj (8238a95f2258000748844444444444415) dm-13 IBM,2145
size=1.0T features='0' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 1:0:2:5 sdae 65:224 active ready running
| |- 2:0:3:5 sdep 129:16 active ready running
| |- 1:0:3:5 sdaq 66:160 active ready running
| `- 2:0:2:5 sded 128:80 active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
|- 1:0:0:5 sdg 8:96 active ready running
|- 2:0:0:5 sddf 70:208 active ready running
|- 1:0:1:5 sds 65:32 active ready running
`- 2:0:1:5 sddr 71:144 active ready running
data15 (820060e8006d945444444d94582821832) dm-58 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:29 sdcv 70:48 active ready running
`- 2:0:5:29 sdgq 132:96 active ready running
mpathd (820060e8006d945444444d94582821f15) dm-37 HITACHI,OPEN-V
size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:4 sdby 68:192 active ready running
`- 2:0:5:4 sdft 130:240 active ready running
flash4 (820060e8006d945444444d94582822033) dm-44 HITACHI,OPEN-V
size=200G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:9 sdcc 69:0 active ready running
`- 2:0:5:9 sdfx 131:48 active ready running
mpathp (820060e8006d945444444d94582821842) dm-24 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:45 sdbm 68:0 active ready running
`- 2:0:4:45 sdfh 130:48 active ready running
mpathai (8238a95f2258000748844444444444414) dm-9 IBM,2145
size=1.0T features='0' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 1:0:0:4 sdf 8:80 active ready running
| |- 2:0:0:4 sdde 70:192 active ready running
| |- 1:0:1:4 sdr 65:16 active ready running
| `- 2:0:1:4 sddq 71:128 active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
|- 1:0:2:4 sdad 65:208 active ready running
|- 2:0:2:4 sdec 128:64 active ready running
|- 1:0:3:4 sdap 66:144 active ready running
`- 2:0:3:4 sdeo 129:0 active ready running
data14 (820060e8006d945444444d94582821831) dm-55 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:28 sdcu 70:32 active ready running
`- 2:0:5:28 sdgp 132:80 active ready running
mpathc (820060e8006d945444444d94582821f12) dm-41 HITACHI,OPEN-V
size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:1 sdbv 68:144 active ready running
`- 2:0:5:1 sdfq 130:192 active ready running
flash3 (820060e8006d945444444d94582822032) dm-42 HITACHI,OPEN-V
size=200G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:8 sdcb 68:240 active ready running
`- 2:0:5:8 sdfw 131:32 active ready running
mpatho (820060e8006d945444444d9458282183a) dm-18 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:37 sdbe 67:128 active ready running
`- 2:0:4:37 sdez 129:176 active ready running
mpathah (8238a95f2258000748844444444444413) dm-5 IBM,2145
size=1.0T features='0' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 1:0:2:3 sdac 65:192 active ready running
| |- 2:0:2:3 sdeb 128:48 active ready running
| |- 1:0:3:3 sdao 66:128 active ready running
| `- 2:0:3:3 sden 128:240 active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
|- 1:0:0:3 sde 8:64 active ready running
|- 2:0:0:3 sddd 70:176 active ready running
|- 1:0:1:3 sdq 65:0 active ready running
`- 2:0:1:3 sddp 71:112 active ready running
data13 (820060e8006d945444444d94582821830) dm-54 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:27 sdct 70:16 active ready running
`- 2:0:5:27 sdgo 132:64 active ready running
mpathb (820060e8006d945444444d94582821f14) dm-82 HITACHI,OPEN-V
size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:3 sdbx 68:176 active ready running
`- 2:0:5:3 sdfs 130:224 active ready running
mpathag (8238a95f2258000748844444444444419) dm-29 IBM,2145
size=1.0T features='0' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 1:0:2:9 sdai 66:32 active ready running
| |- 2:0:3:9 sdet 129:80 active ready running
| |- 1:0:3:9 sdau 66:224 active ready running
| `- 2:0:2:9 sdeh 128:144 active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
|- 1:0:0:9 sdk 8:160 active ready running
|- 2:0:1:9 sddv 71:208 active ready running
|- 1:0:1:9 sdw 65:96 active ready running
`- 2:0:0:9 sddj 71:16 active ready running
mpathn (820060e8006d945444444d94582821844) dm-27 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:47 sdbo 68:32 active ready running
`- 2:0:4:47 sdfj 130:80 active ready running
data12 (820060e8006d945444444d9458282182f) dm-66 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:26 sdcs 70:0 active ready running
`- 2:0:5:26 sdgn 132:48 active ready running
mpatha (820060e8006d945444444d94582821f13) dm-62 HITACHI,OPEN-V
size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:2 sdbw 68:160 active ready running
`- 2:0:5:2 sdfr 130:208 active ready running
data9 (820060e8006d945444444d9458282181c) dm-52 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:21 sdcn 69:176 active ready running
`- 2:0:5:21 sdgi 131:224 active ready running
mpathz (820060e8006d945444444d9458282183b) dm-16 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:38 sdbf 67:144 active ready running
`- 2:0:4:38 sdfa 129:192 active ready running
mpathm (820060e8006d945444444d94582821840) dm-22 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:43 sdbk 67:224 active ready running
`- 2:0:4:43 sdff 130:16 active ready running
mpathaf (8238a95f2258000748844444444444417) dm-10 IBM,2145
size=1.0T features='0' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 1:0:2:7 sdag 66:0 active ready running
| |- 2:0:3:7 sder 129:48 active ready running
| |- 1:0:3:7 sdas 66:192 active ready running
| `- 2:0:2:7 sdef 128:112 active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
|- 1:0:0:7 sdi 8:128 active ready running
|- 2:0:1:7 sddt 71:176 active ready running
|- 1:0:1:7 sdu 65:64 active ready running
`- 2:0:0:7 sddh 70:240 active ready running
data8 (820060e8006d945444444d9458282182c) dm-68 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:23 sdcp 69:208 active ready running
`- 2:0:5:23 sdgk 132:0 active ready running
data11 (820060e8006d945444444d9458282182e) dm-57 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:25 sdcr 69:240 active ready running
`- 2:0:5:25 sdgm 132:32 active ready running
mpathy (820060e8006d945444444d9458282183f) dm-25 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:42 sdbj 67:208 active ready running
`- 2:0:4:42 sdfe 130:0 active ready running
mpathl (820060e8006d945444444d94582821848) dm-33 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:51 sdbs 68:96 active ready running
`- 2:0:4:51 sdfn 130:144 active ready running
mpathae (8238a95f2258000748844444444444410) dm-2 IBM,2145
size=1.0T features='0' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 1:0:0:0 sdb 8:16 active ready running
| |- 2:0:0:0 sdda 70:128 active ready running
| |- 1:0:1:0 sdn 8:208 active ready running
| `- 2:0:1:0 sddm 71:64 active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
|- 1:0:2:0 sdz 65:144 active ready running
|- 2:0:3:0 sdek 128:192 active ready running
|- 1:0:3:0 sdal 66:80 active ready running
`- 2:0:2:0 sddy 128:0 active ready running
data7 (820060e8006d945444444d9458282181d) dm-56 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:22 sdco 69:192 active ready running
`- 2:0:5:22 sdgj 131:240 active ready running
data10 (820060e8006d945444444d9458282182d) dm-53 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:24 sdcq 69:224 active ready running
`- 2:0:5:24 sdgl 132:16 active ready running
mpathaq (8238a95f22580007488444444444444b3) dm-38 IBM,2145
size=256G features='0' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 1:0:3:11 sdaw 67:0 active ready running
| |- 2:0:2:11 sdej 128:176 active ready running
| |- 1:0:2:11 sdak 66:64 active ready running
| `- 2:0:3:11 sdev 129:112 active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
|- 1:0:0:11 sdm 8:192 active ready running
|- 2:0:0:11 sddl 71:48 active ready running
|- 1:0:1:11 sdy 65:128 active ready running
`- 2:0:1:11 sddx 71:240 active ready running
mpathx (820060e8006d945444444d94582821841) dm-23 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:44 sdbl 67:240 active ready running
`- 2:0:4:44 sdfg 130:32 active ready running
mpathk (820060e8006d945444444d9458282183c) dm-19 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:39 sdbg 67:160 active ready running
`- 2:0:4:39 sdfb 129:208 active ready running
mpathad (8238a95f2258000748844444444444411) dm-3 IBM,2145
size=1.0T features='0' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 1:0:2:1 sdaa 65:160 active ready running
| |- 2:0:3:1 sdel 128:208 active ready running
| |- 1:0:3:1 sdam 66:96 active ready running
| `- 2:0:2:1 sddz 128:16 active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
|- 1:0:0:1 sdc 8:32 active ready running
|- 2:0:0:1 sddb 70:144 active ready running
|- 1:0:1:1 sdo 8:224 active ready running
`- 2:0:1:1 sddn 71:80 active ready running
data6 (820060e8006d945444444d9458282181b) dm-65 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:20 sdcm 69:160 active ready running
`- 2:0:5:20 sdgh 131:208 active ready running
mpathw (820060e8006d945444444d94582821849) dm-30 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:52 sdbt 68:112 active ready running
`- 2:0:4:52 sdfo 130:160 active ready running
mpathac (820060e8006d945444444d94582821843) dm-26 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:46 sdbn 68:16 active ready running
`- 2:0:4:46 sdfi 130:64 active ready running
mpathj (820060e8006d945444444d94582821838) dm-14 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:35 sdbc 67:96 active ready running
`- 2:0:4:35 sdex 129:144 active ready running
data5 (820060e8006d945444444d9458282181a) dm-48 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:19 sdcl 69:144 active ready running
`- 2:0:5:19 sdgg 131:192 active ready running
data23 (820060e8016726a828201726a8282172f) dm-8 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:4:57 sdba 67:64 active ready running
`- 2:0:6:57 sdgy 132:224 active ready running
mpathv (820060e8006d945444444d94582821845) dm-28 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:48 sdbp 68:48 active ready running
`- 2:0:4:48 sdfk 130:96 active ready running
mpathi (820060e8006d945444444d94582822031) dm-40 HITACHI,OPEN-V
size=200G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:7 sdca 68:224 active ready running
`- 2:0:5:7 sdfv 131:16 active ready running
mpathab (820060e8006d945444444d94582821847) dm-32 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:50 sdbr 68:80 active ready running
`- 2:0:4:50 sdfm 130:128 active ready running
data4 (820060e8006d945444444d94582821819) dm-51 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:18 sdck 69:128 active ready running
`- 2:0:5:18 sdgf 131:176 active ready running
data22 (820060e8016726a828201726a8282172d) dm-7 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:4:55 sday 67:32 active ready running
`- 2:0:6:55 sdgw 132:192 active ready running
mpathan (8238a95f2258000748844444444444418) dm-20 IBM,2145
size=1.0T features='0' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 1:0:0:8 sdj 8:144 active ready running
| |- 2:0:0:8 sddi 71:0 active ready running
| |- 1:0:1:8 sdv 65:80 active ready running
| `- 2:0:1:8 sddu 71:192 active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
|- 1:0:2:8 sdah 66:16 active ready running
|- 2:0:2:8 sdeg 128:128 active ready running
|- 1:0:3:8 sdat 66:208 active ready running
`- 2:0:3:8 sdes 129:64 active ready running
mpathu (820060e8006d945444444d94582821839) dm-12 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:82 sdbd 67:112 active ready running
`- 2:0:4:82 sdey 129:160 active ready running
data19 (820060e8006d945444444d94582821882) dm-61 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:33 sdcz 70:112 active ready running
`- 2:0:5:33 sdgu 132:160 active ready running
mpathh (820060e8006d945444444d94582822030) dm-39 HITACHI,OPEN-V
size=200G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:6 sdbz 68:208 active ready running
`- 2:0:5:6 sdfu 131:0 active ready running
mpathaa (820060e8006d945444444d94582821837) dm-11 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:34 sdbb 67:80 active ready running
`- 2:0:4:34 sdew 129:128 active ready running
data3 (820060e8006d945444444d94582821817) dm-47 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:16 sdci 69:96 active ready running
`- 2:0:5:16 sdgd 131:144 active ready running
data21 (820060e8016726a828201726a8282172c) dm-6 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:4:54 sdax 67:16 active ready running
`- 2:0:6:54 sdgv 132:176 active ready running
mpatht (820060e8006d945444444d9458282183d) dm-17 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:40 sdbh 67:176 active ready running
`- 2:0:4:40 sdfc 129:224 active ready running
mpatham (8238a95f2258000748844444444444412) dm-4 IBM,2145
size=1.0T features='0' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 1:0:0:2 sdd 8:48 active ready running
| |- 2:0:1:2 sddo 71:96 active ready running
| |- 1:0:1:2 sdp 8:240 active ready running
| `- 2:0:0:2 sddc 70:160 active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
|- 1:0:2:2 sdab 65:176 active ready running
|- 2:0:2:2 sdea 128:32 active ready running
|- 1:0:3:2 sdan 66:112 active ready running
`- 2:0:3:2 sdem 128:224 active ready running
mpathg (820060e8006d945444444d94582822037) dm-64 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:13 sdcf 69:48 active ready running
`- 2:0:5:13 sdga 131:96 active ready running
data18 (820060e8006d945444444d94582821835) dm-60 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:32 sdcy 70:96 active ready running
`- 2:0:5:32 sdgt 132:144 active ready running
data20 (820060e8016726a828201726a8282172e) dm-50 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:4:56 sdaz 67:48 active ready running
`- 2:0:6:56 sdgx 132:208 active ready running
data2 (820060e8006d945444444d94582821818) dm-49 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:17 sdcj 69:112 active ready running
`- 2:0:5:17 sdge 131:160 active ready running
mpathal (8238a95f225800074884444444444441a) dm-35 IBM,2145
size=589G features='0' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 1:0:0:10 sdl 8:176 active ready running
| |- 2:0:1:10 sddw 71:224 active ready running
| |- 1:0:1:10 sdx 65:112 active ready running
| `- 2:0:0:10 sddk 71:32 active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
|- 1:0:2:10 sdaj 66:48 active ready running
|- 2:0:3:10 sdeu 129:96 active ready running
|- 1:0:3:10 sdav 66:240 active ready running
`- 2:0:2:10 sdei 128:160 active ready running
mpaths (820060e8006d945444444d94582821846) dm-31 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:5:49 sdbq 68:64 active ready running
`- 2:0:4:49 sdfl 130:112 active ready running
mpathf (820060e8006d945444444d94582822034) dm-63 HITACHI,OPEN-V
size=275G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:10 sdcd 69:16 active ready running
`- 2:0:5:10 sdfy 131:64 active ready running
data17 (820060e8006d945444444d94582821834) dm-59 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:31 sdcx 70:80 active ready running
`- 2:0:5:31 sdgs 132:128 active ready running
data1 (820060e8006d945444444d94582821816) dm-46 HITACHI,OPEN-V
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
|- 1:0:6:15 sdch 69:80 active ready running
`- 2:0:5:15 sdgc 131:128 active ready running
root@xxXXxxXX [/root]

Last edited by rookee; 03-29-2015 at 10:30 PM.
 
Old 03-30-2015, 01:40 PM   #2
T3RM1NVT0R
Senior Member
 
Registered: Dec 2010
Location: Internet
Distribution: Linux Mint, SLES, CentOS, Red Hat
Posts: 2,385

Rep: Reputation: 476Reputation: 476Reputation: 476Reputation: 476Reputation: 476
Here are the documents which will give you information on multipathing:

1. https://access.redhat.com/documentat.../DM_Multipath/
2. https://access.redhat.com/documentat...h_devices.html

Below is the abstract from man page of multipath:

Code:
-l
    show the current multipath topology from information fetched in sysfs and the device mapper 
-ll
    show the current multipath topology from all available information (sysfs, the device mapper, path checkers ...)
 
1 members found this post helpful.
Old 03-30-2015, 06:19 PM   #3
rookee
LQ Newbie
 
Registered: Jun 2014
Posts: 28

Original Poster
Rep: Reputation: Disabled
Thanks T3RM1NVT0R. I'll check them out
 
Old 03-30-2015, 06:36 PM   #4
T3RM1NVT0R
Senior Member
 
Registered: Dec 2010
Location: Internet
Distribution: Linux Mint, SLES, CentOS, Red Hat
Posts: 2,385

Rep: Reputation: 476Reputation: 476Reputation: 476Reputation: 476Reputation: 476
You're welcome.

Apart from that, here are the commands which you might find interesting:

1.
Code:
ls -al /dev/disk/by-path
2.
Code:
lsblk
There are other commands which are for multipath and you can find them in the document links I shared earlier.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
what is a main difference between rhel 6 and rhel 7 accourding to rhel exam bikesh Linux - Newbie 6 12-05-2014 01:06 AM
Error throwing while installing vsftpd package in rhel 6. using rhel 6 dvd. redhatlbug Linux - Software 4 03-10-2013 07:09 AM
[SOLVED] We can I find nedit binary for IBM POWER server under RHEL 5 or RHEL 6 vvertsberger Linux - Software 7 03-03-2013 02:48 AM
LXer: Red Hat nips, tucks RHEL 6.4 ahead of RHEL 7 later this year LXer Syndicated Linux News 0 02-21-2013 11:40 PM
Upgrade to RHEL 5.3 from RHEL 4.4 only using the kernel rpm of RHEL 5.3 rhystech Red Hat 4 05-28-2012 11:01 PM


All times are GMT -5. The time now is 04:15 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration