Saturday, 12 May 2018

Fiber Channel Cheat Sheet - Deleting LUNs

I want to delete the following LUN:
"mpathe" LUN WWID is "600507680c800507f0000000000000c6" (without "3") Disks are "/dev/sdh", "/dev/sdm", "/dev/sdc" and "/dev/sdr".

[root@B54LFRTMPSTG01 ~]# multipath -ll
mpathe (3600507680c800507f0000000000000c6) dm-4 IBM     ,2145            
size=55G features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='service-time 0' prio=50 status=active
| |- 0:0:0:2 sdh        8:112 active ready running
| `- 1:0:0:2 sdm        8:192 active ready running
`-+- policy='service-time 0' prio=10 status=enabled
  |- 0:0:1:2 sdc        8:32  active ready running
  `- 1:0:1:2 sdr        65:16 active ready running

Find the used Physical Volume (PV), Volume Group (VG), Logical Volume (LV), Filesystem and Mount Point used by "mpathe"

[root@B54LFRTMPSTG01 ~]# pvs | grep -e PV  -e mpathe
  PV                 VG                  Fmt  Attr PSize     PFree 
  /dev/mapper/mpathe vg-community-master lvm2 a--    <55.00g     0

[root@B54LFRTMPSTG01 ~]# lvs | grep -e LV -e vg-community-master
  LV               VG                  Attr       LSize     Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  community-master vg-community-master -wi-ao----   <55.00g

[root@B54LFRTMPSTG01 ~]# df -hT /dev/vg-community-master/community-master
Filesystem                                          Type  Size  Used Avail Use% Mounted on
/dev/mapper/vg--community--master-community--master ext3   55G   52M   52G   1% /home/databases/community-master

[root@B54LFRTMPSTG01 ~]# lsblk | grep -B1 -A1 mpathe
sdc                                           8:32   0   55G  0 disk  
└─mpathe                                    253:4    0   55G  0 mpath 
  └─vg--community--master-community--master 253:7    0   55G  0 lvm   /home/databases/community-master
--
sdh                                           8:112  0   55G  0 disk  
└─mpathe                                    253:4    0   55G  0 mpath 
  └─vg--community--master-community--master 253:7    0   55G  0 lvm   /home/databases/community-master
--
sdm                                           8:192  0   55G  0 disk  
└─mpathe                                    253:4    0   55G  0 mpath 
  └─vg--community--master-community--master 253:7    0   55G  0 lvm   /home/databases/community-master
--
sdr                                          65:16   0   55G  0 disk  
└─mpathe                                    253:4    0   55G  0 mpath 
  └─vg--community--master-community--master 253:7    0   55G  0 lvm   /home/databases/community-master

Umount "/home/databases/community-master" mount point:

[root@B54LFRTMPSTG01 ~]# umount /home/databases/community-master

Comment "/home/databases/community-master" line from "/etc/fstab" file:

#/dev/vg-community-master/community-master       /home/databases/community-master        ext3    defaults,noatime        0       0

Deactivate "community-master" LV and "vg-community-master" VG:

[root@B54LFRTMPSTG01 ~]# lvchange -an /dev/vg-community-master/community-master

[root@B54LFRTMPSTG01 ~]# vgchange -an vg-community-master
  0 logical volume(s) in volume group "vgsql" now active

IF AND ONLY IF YOU DO NOT WANT THE TO MOVE THE LV AND VG TO ANOTHER HOST, THEN DELETE "community-master" LV and "vg-community-master" VG, OTHERWISE, EXPORT the VG:

[root@B54LFRTMPSTG01 ~]# lvremove /dev/vg-community-master/community-master

[root@B54LFRTMPSTG01 ~]# vgremove vg-community-master

Remove 'mpathe" device:

[root@B54LFRTMPSTG01 ~]# multipath -f mpathe

[root@B54LFRTMPSTG01 ~]# multipath -ll
[root@B54LFRTMPSTG01 ~]# echo $?
0

Unmap Disks the forms "mpathe" from your discovered LUNs:

[root@B54LFRTMPSTG01 ~]# echo 1 > /sys/block/sdh/device/delete 
[root@B54LFRTMPSTG01 ~]# echo 1 > /sys/block/sdm/device/delete 
[root@B54LFRTMPSTG01 ~]# echo 1 > /sys/block/sdc/device/delete 
[root@B54LFRTMPSTG01 ~]# echo 1 > /sys/block/sdr/device/delete

Fiber Channel Cheat Sheet - Adding new LUNs

New Server that has no LUNs

[root@B54LFRTMPSTG01 ~]# hostname && cat /etc/redhat-release 
B54LFRTMPSTG01
Red Hat Enterprise Linux Server release 7.4 (Maipo)

Make sue that there is not Attached LUNs by cechking "/proc/scsi/scsi":

[root@B54LFRTMPSTG01 ~]# cat /proc/scsi/scsi 
Attached devices:

As you have only Direct Attached Disks, you will see them only under "/dev/disk/by-path":

[root@B54LFRTMPSTG01 ~]# ls -lha /dev/disk/by-path/
total 0
drwxr-xr-x 2 root root 100 Apr 28 11:29 .
drwxr-xr-x 5 root root 100 Apr 23 10:34 ..
lrwxrwxrwx 1 root root  16 Apr 23 10:35 pci-0000:0b:08.0-cciss-disk0 -> ../../cciss/c0d0
lrwxrwxrwx 1 root root  18 Apr 23 10:35 pci-0000:0b:08.0-cciss-disk0-part1 -> ../../cciss/c0d0p1
lrwxrwxrwx 1 root root  18 Apr 23 10:35 pci-0000:0b:08.0-cciss-disk0-part2 -> ../../cciss/c0d0p2

Check How many Fibre Channel Cards (HBAs), you have two: "host0" and "host1"

[root@B54LFRTMPSTG01 ~]# ls /sys/class/fc_host
host0  host1

Refresh LUNs list to discover new mapped LUNs to your OS:

[root@B54LFRTMPSTG01 ~]# echo "1" > /sys/class/fc_host/host0/issue_lip
[root@B54LFRTMPSTG01 ~]# echo "- - -" > /sys/class/scsi_host/host0/scan

[root@B54LFRTMPSTG01 ~]# echo "1" > /sys/class/fc_host/host1/issue_lip
[root@B54LFRTMPSTG01 ~]# echo "- - -" > /sys/class/scsi_host/host1/scan

Now, there are 20 LUNs attached to your OS:
Vendor: IBM
Model: 2145

[root@B54LFRTMPSTG01 ~]# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 01 Lun: 00
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi0 Channel: 00 Id: 01 Lun: 01
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi0 Channel: 00 Id: 01 Lun: 02
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi0 Channel: 00 Id: 01 Lun: 03
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi0 Channel: 00 Id: 01 Lun: 04
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi0 Channel: 00 Id: 00 Lun: 01
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi0 Channel: 00 Id: 00 Lun: 02
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi0 Channel: 00 Id: 00 Lun: 03
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi0 Channel: 00 Id: 00 Lun: 04
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 00 Lun: 00
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 00 Lun: 01
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 00 Lun: 02
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 00 Lun: 03
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 00 Lun: 04
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 01 Lun: 00
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 01 Lun: 01
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 01 Lun: 02
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 01 Lun: 03
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 01 Lun: 04
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06

[root@B54LFRTMPSTG01 ~]# cat /proc/scsi/scsi | egrep -i 'Host:' | wc -l
20

[root@B54LFRTMPSTG01 ~]# fdisk -l 2>/dev/null | egrep '^Disk' | egrep -v 'dm-|type|identifier'
Disk /dev/cciss/c0d0: 73.4 GB, 73372631040 bytes, 143305920 sectors
Disk /dev/mapper/rhel-root: 21.5 GB, 21474836480 bytes, 41943040 sectors
Disk /dev/mapper/rhel-swap: 7340 MB, 7340032000 bytes, 14336000 sectors
Disk /dev/sda: 536.9 GB, 536870912000 bytes, 1048576000 sectors
Disk /dev/sdb: 59.1 GB, 59055800320 bytes, 115343360 sectors
Disk /dev/sdc: 59.1 GB, 59055800320 bytes, 115343360 sectors
Disk /dev/sdd: 59.1 GB, 59055800320 bytes, 115343360 sectors
Disk /dev/sde: 1073.7 GB, 1073741824000 bytes, 2097152000 sectors
Disk /dev/sdf: 536.9 GB, 536870912000 bytes, 1048576000 sectors
Disk /dev/sdg: 59.1 GB, 59055800320 bytes, 115343360 sectors
Disk /dev/mapper/mpathc: 536.9 GB, 536870912000 bytes, 1048576000 sectors
Disk /dev/mapper/mpathd: 59.1 GB, 59055800320 bytes, 115343360 sectors
Disk /dev/sdh: 59.1 GB, 59055800320 bytes, 115343360 sectors
Disk /dev/sdi: 59.1 GB, 59055800320 bytes, 115343360 sectors
Disk /dev/mapper/mpathe: 59.1 GB, 59055800320 bytes, 115343360 sectors
Disk /dev/sdj: 1073.7 GB, 1073741824000 bytes, 2097152000 sectors
Disk /dev/mapper/mpathf: 59.1 GB, 59055800320 bytes, 115343360 sectors
Disk /dev/mapper/mpathg: 1073.7 GB, 1073741824000 bytes, 2097152000 sectors
Disk /dev/sdk: 536.9 GB, 536870912000 bytes, 1048576000 sectors
Disk /dev/sdl: 59.1 GB, 59055800320 bytes, 115343360 sectors
Disk /dev/sdm: 59.1 GB, 59055800320 bytes, 115343360 sectors
Disk /dev/sdn: 59.1 GB, 59055800320 bytes, 115343360 sectors
Disk /dev/sdo: 1073.7 GB, 1073741824000 bytes, 2097152000 sectors
Disk /dev/sdp: 536.9 GB, 536870912000 bytes, 1048576000 sectors
Disk /dev/sdq: 59.1 GB, 59055800320 bytes, 115343360 sectors
Disk /dev/sdr: 59.1 GB, 59055800320 bytes, 115343360 sectors
Disk /dev/sds: 59.1 GB, 59055800320 bytes, 115343360 sectors
Disk /dev/sdt: 1073.7 GB, 1073741824000 bytes, 2097152000 sectors

Optional: Find Device instructions to e added to "/etc/multipath.conf" configuration file:
RHEL 7

[root@B54LFRTMPSTG01 ~]# multipath -t | grep -B2 -A8 2145
 device {
  vendor "IBM"
  product "^2145"
  path_grouping_policy "group_by_prio"
  path_checker "tur"
  features "1 queue_if_no_path"
  hardware_handler "0"
  prio "alua"
  failback immediate
  rr_weight "uniform"
 }

RHEL 6

[root@fcsmpsql4:~]# grep -B2 -A12  2145 /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf.defaults 
# device {
#  vendor "IBM"
#  product "^2145"
#  path_grouping_policy group_by_prio
#  getuid_callout "/lib/udev/scsi_id --whitelisted --device=/dev/%n"
#  path_selector "round-robin 0"
#  path_checker tur
#  features "1 queue_if_no_path"
#  hardware_handler "0"
#  prio alua
#  failback immediate
#  rr_weight uniform
#  rr_min_io 1000
#  rr_min_io_rq 1
# }

Set initial configuration for "multipathd" daemon using "mpathconf" command:

mpathconf --enable --user_friendly_names n'

Adjust the "multipath" configurations as you need, here is just an example:

[root@B54LFRTMPSTG01 ~]# grep -v ^# /etc/multipath.conf | awk NF
defaults {
 user_friendly_names yes
 find_multipaths yes
}
devices {
 device {
  vendor "IBM"
  product "^2145"
  path_grouping_policy "group_by_prio"
  path_checker "tur"
  features "1 queue_if_no_path"
  hardware_handler "0"
  prio "alua"
  failback immediate
  rr_weight "uniform"
 }
}

[root@B54LFRTMPSTG01 ~]# systemctl restart multipathd

List the new 'multipath -ll' output:

[root@B54LFRTMPSTG01 ~]# multipath -ll
mpathe (3600507680c800507f0000000000000c6) dm-4 IBM     ,2145            
size=55G features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='service-time 0' prio=50 status=active
| |- 0:0:0:2 sdh        8:112 active ready running
| `- 1:0:0:2 sdm        8:192 active ready running
`-+- policy='service-time 0' prio=10 status=enabled
  |- 0:0:1:2 sdc        8:32  active ready running
  `- 1:0:1:2 sdr        65:16 active ready running
mpathd (3600507680c800507f0000000000000c5) dm-3 IBM     ,2145            
size=55G features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='service-time 0' prio=50 status=active
| |- 0:0:0:1 sdg        8:96  active ready running
| `- 1:0:0:1 sdl        8:176 active ready running
`-+- policy='service-time 0' prio=10 status=enabled
  |- 0:0:1:1 sdb        8:16  active ready running
  `- 1:0:1:1 sdq        65:0  active ready running
mpathc (3600507680c800507f0000000000000c4) dm-2 IBM     ,2145            
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='service-time 0' prio=50 status=active
| |- 0:0:0:0 sdf        8:80  active ready running
| `- 1:0:0:0 sdk        8:160 active ready running
`-+- policy='service-time 0' prio=10 status=enabled
  |- 0:0:1:0 sda        8:0   active ready running
  `- 1:0:1:0 sdp        8:240 active ready running
mpathg (3600507680c800507f0000000000000c8) dm-6 IBM     ,2145            
size=1000G features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='service-time 0' prio=50 status=active
| |- 0:0:0:4 sdj        8:144 active ready running
| `- 1:0:0:4 sdo        8:224 active ready running
`-+- policy='service-time 0' prio=10 status=enabled
  |- 0:0:1:4 sde        8:64  active ready running
  `- 1:0:1:4 sdt        65:48 active ready running
mpathf (3600507680c800507f0000000000000c7) dm-5 IBM     ,2145            
size=55G features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='service-time 0' prio=50 status=active
| |- 0:0:0:3 sdi        8:128 active ready running
| `- 1:0:0:3 sdn        8:208 active ready running
`-+- policy='service-time 0' prio=10 status=enabled
  |- 0:0:1:3 sdd        8:48  active ready running
  `- 1:0:1:3 sds        65:32 active ready running

Thursday, 10 May 2018

Fiber Channel Cheat Sheet - Collecting Data

References:

https://www.opentechguides.com/how-to/article/linux/18/fc-hba-linux.html
http://www.fibrevillage.com/sysadmin/9-storage/9-check-hba-card-and-its-driver-s-info-in-linux-rhel6
http://fibrevillage.com/storage/61-systool-a-useful-tool-for-san-as-well-for-sysfs-devices
https://access.redhat.com/articles/17054#NR2
https://access.redhat.com/articles/17628

Storage Connection Diagram

List your Fibre Channel Cards (HBAs) Hardware Info:

Determine the Manufacturer and Model of the HBAs (Fibre Channel Card):

[root@fcsmpsql4:~]# lspci | grep "Fibre Channel"
06:00.0 Fibre Channel: Emulex Corporation Zephyr-X LightPulse Fibre Channel Host Adapter (rev 02)
06:00.1 Fibre Channel: Emulex Corporation Zephyr-X LightPulse Fibre Channel Host Adapter (rev 02)

Get the Vendor and Device IDs for the HBAs installed:

Vendor	10df
Vendor Name	Emulex Corporation
Device	fe00
Device Name	Zephyr-X LightPulse Fibre Channel Host Adapter

[root@fcsmpsql4:~]# lspci -nn | grep "Fibre Channel"
06:00.0 Fibre Channel [0c04]: Emulex Corporation Zephyr-X LightPulse Fibre Channel Host Adapter [10df:fe00] (rev 02)
06:00.1 Fibre Channel [0c04]: Emulex Corporation Zephyr-X LightPulse Fibre Channel Host Adapter [10df:fe00] (rev 02)

[root@fcsmpsql4:~]# grep -e "10df  Emulex Corporation" -e "fe00  Zephyr-X LightPulse Fibre Channel Host Adapter" /usr/share/hwdata/pci.ids
# List of PCI ID's
#
# Version: 2017.02.15
# Date:    2017-02-15 03:15:02
#
# Maintained by Albert Pool, Martin Mares, and other volunteers from
# the PCI ID Project at http://pci-ids.ucw.cz/.
#
# New data are always welcome, especially if they are accurate. If you have
# anything to contribute, please follow the instructions at the web site.
#
# This file can be distributed under either the GNU General Public License
# (version 2 or higher) or the 3-clause BSD License.
#

# Vendors, devices and subsystems. Please keep sorted.

# Syntax:
# vendor  vendor_name
# device  device_name    
10df  Emulex Corporation
 fe00  Zephyr-X LightPulse Fibre Channel Host Adapter

Check if the HBA driver modules are installed:

[root@fcsmpsql4:~]# grep 10df /lib/modules/$(uname -r)/modules.* | grep fe00
/lib/modules/2.6.32-696.6.3.el6.x86_64/modules.pcimap:lpfc                 0x000010df 0x0000fe00 0xffffffff 0xffffffff 0x00000000 0x00000000 0x0

Find HBA Kernel driver:

[root@fcsmpsql4:~]# lspci -v -s 06:00.0 | grep Kernel
 Kernel driver in use: lpfc
 Kernel modules: lpfc

Check if the drivers for HBA are loaded in the kernel:

[root@fcsmpsql4:~]# lsmod |  grep -e Module -e lpfc
Module                  Size  Used by
lpfc                  664415  84 
scsi_transport_fc      55235  1 lpfc
crc_t10dif              1209  2 sd_mod,lpfc

Collect information about HBA kernel module:

## -- HBA Kernel Module Dependencies -- ##
[root@fcsmpsql4:~]# modprobe --show-depends lpfc
WARNING: All config files need .conf: /etc/modprobe.d/fc-hba.conf.old, it will be ignored in a future release.
insmod /lib/modules/2.6.32-696.6.3.el6.x86_64/kernel/lib/crc-t10dif.ko 
insmod /lib/modules/2.6.32-696.6.3.el6.x86_64/kernel/drivers/scsi/scsi_tgt.ko 
insmod /lib/modules/2.6.32-696.6.3.el6.x86_64/kernel/drivers/scsi/scsi_transport_fc.ko 
insmod /lib/modules/2.6.32-696.6.3.el6.x86_64/kernel/drivers/scsi/lpfc/lpfc.ko lpfc_lun_queue_depth=16 lpfc_nodev_tmo=30 lpfc_discovery_threads=32 lpfc_lun_queue_depth=16 lpfc_nodev_tmo=30 lpfc_discovery_threads=32

## -- HBA Author Infomation -- ##
[root@fcsmpsql4:~]# modinfo -a lpfc
Emulex Corporation - tech.support@emulex.com

## -- HBA Description -- ##
[root@fcsmpsql4:~]# modinfo -d lpfc
Emulex LightPulse Fibre Channel SCSI driver 11.0.0.6

## -- HBA Kernel Module Filename -- ##
[root@fcsmpsql4:~]# modinfo -n lpfc
/lib/modules/2.6.32-696.6.3.el6.x86_64/kernel/drivers/scsi/lpfc/lpfc.ko

## -- HBA Kernel Module Licence Info -- ##
[root@fcsmpsql4:~]# modinfo -l lpfc
GPL

## -- HBA Kernel Module Version and Source Version -- ##
[root@fcsmpsql4:~]# modinfo lpfc | grep -e ^version -e srcversion
version:        0:11.0.0.6
srcversion:     2BC7C844F14E68EDDECDE59

## -- Check if the current HBA Kernal module is the same with the current kernel one -- ##
[root@fcsmpsql4:~]# uname -r
2.6.32-696.6.3.el6.x86_64

[root@fcsmpsql4:~]# modinfo -k $(uname -r) -n lpfc
/lib/modules/2.6.32-696.6.3.el6.x86_64/kernel/drivers/scsi/lpfc/lpfc.ko

Check How many HBAs (Fibre Channels Card) you have - Two Cards here (host1, and host2):

[root@fcsmpsql4:~]# ls -lh /sys/class//fc_host/
total 0
lrwxrwxrwx 1 root root 0 May 10 14:50 host1 -> ../../devices/pci0000:00/0000:00:07.0/0000:06:00.0/host1/fc_host/host1
lrwxrwxrwx 1 root root 0 May 10 17:40 host2 -> ../../devices/pci0000:00/0000:00:07.0/0000:06:00.1/host2/fc_host/host2

[root@fcsmpsql4:~]# systool -c fc_host
Class = "fc_host"

  Class Device = "host1"
    Device = "host1"

  Class Device = "host2"
    Device = "host2"

Collect:
1) HBA Name for the two above HBA.
2) FC SAN Switch World Wide Name (WWN).
3) HBA World Wide Node Name (WWNN) for the two above two HBAs.
4) HBA World Wide Port Number (WWPN) for the above two HBAs.
5) Fabric port id assigned by the SAN to above two HBAs

[root@fcsmpsql4:~]# systool -c fc_host -v 
Class = "fc_host"

  Class Device = "host1"                        --> HBA Name
  Class Device path = "/sys/devices/pci0000:00/0000:00:07.0/0000:06:00.0/host1/fc_host/host1"  --> Kernel assigned host name/number
    fabric_name         = "0x100050eb1a486d5d"  --> FC SAN Switch WWN
    node_name           = "0x20000000c9be6c4e"  --> HBA WWNN
    port_name           = "0x10000000c9be6c4e"  --> HBA WWPN
    port_id             = "0x030918"            --> fabric port id assigned by the san to this HBA
    port_state          = "Online"
    port_type           = "NPort (fabric via point-to-point)"
    speed               = "4 Gbit"
    supported_speeds    = "1 Gbit, 2 Gbit, 4 Gbit"


  Class Device = "host2"                        --> HBA Name
  Class Device path = "/sys/devices/pci0000:00/0000:00:07.0/0000:06:00.1/host2/fc_host/host2"  --> Kernel assigned host name/number
    fabric_name         = "0x100050eb1a4868c5"  --> FC SAN Switch WWN 
    node_name           = "0x20000000c9be6c4f"  --> HBA WWNN
    port_name           = "0x10000000c9be6c4f"  --> HBA WWPN
    port_id             = "0x040929"            --> fabric port id assigned by the san to this HBA
    port_state          = "Online"
    port_type           = "NPort (fabric via point-to-point)"
    speed               = "4 Gbit"
    supported_speeds    = "1 Gbit, 2 Gbit, 4 Gbit"

## -- FC SAN Switch WWN -- ##
[root@fcsmpsql4:~]# cat /sys/class/fc_host/host1/fabric_name 
0x100050eb1a486d5d

[root@fcsmpsql4:~]# cat /sys/class/fc_host/host2/fabric_name 
0x100050eb1a4868c5

## -- HBA WWNN -- ##
[root@fcsmpsql4:~]# cat /sys/class/fc_host/host1/node_name
0x20000000c9be6c4e

[root@fcsmpsql4:~]# cat /sys/class/fc_host/host2/node_name
0x20000000c9be6c4f

## -- HBA WWPN -- ##
[root@fcsmpsql4:~]# cat /sys/class/fc_host/host1/port_name
0x10000000c9be6c4e

[root@fcsmpsql4:~]# cat /sys/class/fc_host/host2/port_name
0x10000000c9be6c4f

## -- fabric port id assigned by the san to this HBA --##
[root@fcsmpsql4:~]# cat /sys/class/fc_host/host1/port_id
0x030918

[root@fcsmpsql4:~]# cat /sys/class/fc_host/host2/port_id
0x040929

List Storage Arrays (targets) Information:

Collect:
1) Storage (Target) World Wide Node Name (WWNN).
2) Storage (Target) World Wide Port Number (WWPN).
3) Fabric port id assigned by the san to this storage port

We have 4 paths for each HBA as shown in the first diagram, so we can see the following targets:
Host1 -> "target1:0:0", "target1:0:6", "target1:0:7" and "target1:0:8"
Host2 -> "target2:0:1", "target2:0:6", "target2:0:7" and "target2:0:8"

[root@fcsmpsql4:~]# systool -c fc_transport -v
  Class Device = "0:0"
  Class Device path = "/sys/devices/pci0000:00/0000:00:07.0/0000:06:00.0/host1/rport-1:0-2/target1:0:0/fc_transport/target1:0:0"
    node_name           = "0x5000144047606984"        --> Storage target WWNN
    port_id             = "0x033800"                  --> Fabric port id assigned by the SAN to this storage port
    port_name           = "0x50001442a0698400"        --> Storage target WWPN

  Class Device = "0:1"
  Class Device path = "/sys/devices/pci0000:00/0000:00:07.0/0000:06:00.1/host2/rport-2:0-3/target2:0:1/fc_transport/target2:0:1"
    node_name           = "0x5000144047706984"        --> Storage target WWNN
    port_id             = "0x043800"                  --> Fabric port id assigned by the SAN to this storage port
    port_name           = "0x50001442b0698401"        --> Storage target WWPN

  Class Device = "0:6"
  Class Device path = "/sys/devices/pci0000:00/0000:00:07.0/0000:06:00.0/host1/rport-1:0-8/target1:0:6/fc_transport/target1:0:6"
    node_name           = "0x5000144047706991"        --> Storage target WWNN
    port_id             = "0x033c00"                  --> Fabric port id assigned by the SAN to this storage port
    port_name           = "0x50001442b0699100"        --> Storage target WWPN

  Class Device = "0:6"
  Class Device path = "/sys/devices/pci0000:00/0000:00:07.0/0000:06:00.1/host2/rport-2:0-8/target2:0:6/fc_transport/target2:0:6"
    node_name           = "0x5000144047606991"        --> Storage target WWNN
    port_id             = "0x040c00"                  --> Fabric port id assigned by the SAN to this storage port
    port_name           = "0x50001442a0699101"        --> Storage target WWPN

 Class Device = "0:7"
  Class Device path = "/sys/devices/pci0000:00/0000:00:07.0/0000:06:00.0/host1/rport-1:0-9/target1:0:7/fc_transport/target1:0:7"
    node_name           = "0x5000144047b02b61"        --> Storage target WWNN
    port_id             = "0x034d00"                  --> Fabric port id assigned by the SAN to this storage port
    port_name           = "0x50001442d02b6101"        --> Storage target WWPN

  Class Device = "0:7"
  Class Device path = "/sys/devices/pci0000:00/0000:00:07.0/0000:06:00.1/host2/rport-2:0-9/target2:0:7/fc_transport/target2:0:7"
    node_name           = "0x5000144047b02b9c"        --> Storage target WWNN
    port_id             = "0x044900"                  --> Fabric port id assigned by the SAN to this storage port
    port_name           = "0x50001442d02b9c00"        --> Storage target WWPN

  Class Device = "0:8"
  Class Device path = "/sys/devices/pci0000:00/0000:00:07.0/0000:06:00.0/host1/rport-1:0-10/target1:0:8/fc_transport/target1:0:8"
    node_name           = "0x5000144047a02b9c"        --> Storage target WWNN
    port_id             = "0x034800"                  --> Fabric port id assigned by the SAN to this storage port
    port_name           = "0x50001442c02b9c01"        --> Storage target WWPN

  Class Device = "0:8"
  Class Device path = "/sys/devices/pci0000:00/0000:00:07.0/0000:06:00.1/host2/rport-2:0-10/target2:0:8/fc_transport/target2:0:8"
    node_name           = "0x5000144047a02b61"        --> Storage target WWNN
    port_id             = "0x044c00"                  --> Fabric port id assigned by the SAN to this storage port
    port_name           = "0x50001442c02b6100"        --> Storage target WWPN

OR
RHEL 5:

[root@fcsmpsql4:~]# ls -1c /sys/class/fc_transport/target*/*_name  2> /dev/null | xargs -I {} grep -H -v "ZzZz" {} | sort

[root@fcsmpsql4:~]# ls -1c /sys/class/fc_transport/target*/port_id 2> /dev/null | xargs -I {} grep -H -v "ZzZz" {} | sort

RHEL 6 and RHEL 7:

[root@fcsmpsql4:~]# ls -1c /sys/bus/scsi/devices/target*/fc_transport/target*/*_name  2> /dev/null | xargs -I {} grep -H -v "ZzZz" {} | sort
/sys/bus/scsi/devices/target1:0:0/fc_transport/target1:0:0/node_name:0x5000144047606984
/sys/bus/scsi/devices/target1:0:0/fc_transport/target1:0:0/port_name:0x50001442a0698400
/sys/bus/scsi/devices/target1:0:6/fc_transport/target1:0:6/node_name:0x5000144047706991
/sys/bus/scsi/devices/target1:0:6/fc_transport/target1:0:6/port_name:0x50001442b0699100
/sys/bus/scsi/devices/target1:0:7/fc_transport/target1:0:7/node_name:0x5000144047b02b61
/sys/bus/scsi/devices/target1:0:7/fc_transport/target1:0:7/port_name:0x50001442d02b6101
/sys/bus/scsi/devices/target1:0:8/fc_transport/target1:0:8/node_name:0x5000144047a02b9c
/sys/bus/scsi/devices/target1:0:8/fc_transport/target1:0:8/port_name:0x50001442c02b9c01
/sys/bus/scsi/devices/target2:0:1/fc_transport/target2:0:1/node_name:0x5000144047706984
/sys/bus/scsi/devices/target2:0:1/fc_transport/target2:0:1/port_name:0x50001442b0698401
/sys/bus/scsi/devices/target2:0:6/fc_transport/target2:0:6/node_name:0x5000144047606991
/sys/bus/scsi/devices/target2:0:6/fc_transport/target2:0:6/port_name:0x50001442a0699101
/sys/bus/scsi/devices/target2:0:7/fc_transport/target2:0:7/node_name:0x5000144047b02b9c
/sys/bus/scsi/devices/target2:0:7/fc_transport/target2:0:7/port_name:0x50001442d02b9c00
/sys/bus/scsi/devices/target2:0:8/fc_transport/target2:0:8/node_name:0x5000144047a02b61
/sys/bus/scsi/devices/target2:0:8/fc_transport/target2:0:8/port_name:0x50001442c02b6100

[root@fcsmpsql4:~]# ls -1c /sys/bus/scsi/devices/target*/fc_transport/target*/port_id 2> /dev/null | xargs -I {} grep -H -v "ZzZz" {} | sort
/sys/bus/scsi/devices/target1:0:0/fc_transport/target1:0:0/port_id:0x033800
/sys/bus/scsi/devices/target1:0:6/fc_transport/target1:0:6/port_id:0x033c00
/sys/bus/scsi/devices/target1:0:7/fc_transport/target1:0:7/port_id:0x034d00
/sys/bus/scsi/devices/target1:0:8/fc_transport/target1:0:8/port_id:0x034800
/sys/bus/scsi/devices/target2:0:1/fc_transport/target2:0:1/port_id:0x043800
/sys/bus/scsi/devices/target2:0:6/fc_transport/target2:0:6/port_id:0x040c00
/sys/bus/scsi/devices/target2:0:7/fc_transport/target2:0:7/port_id:0x044900
/sys/bus/scsi/devices/target2:0:8/fc_transport/target2:0:8/port_id:0x044c00

Collecting LUNs information:

Collect LUN General Information

I have two HBAs:

[root@B54LFRTMPSTG01 ~]# ls /sys/class/fc_host/
host0  host1

[root@B54LFRTMPSTG01 ~]# cat /proc/scsi/scsi 
Attached devices:
Host: scsi0 Channel: 00 Id: 01 Lun: 00                                --> LUN is shown using HBA 'host0'
  Vendor: IBM      Model: 2145             Rev: 0000                  --> Vendor is "IBM" and Model is "2145"
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi0 Channel: 00 Id: 01 Lun: 01
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi0 Channel: 00 Id: 01 Lun: 03
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi0 Channel: 00 Id: 01 Lun: 04
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi0 Channel: 00 Id: 00 Lun: 01
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi0 Channel: 00 Id: 00 Lun: 03
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi0 Channel: 00 Id: 00 Lun: 04
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 00 Lun: 00
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 00 Lun: 01
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 00 Lun: 03
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 00 Lun: 04
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 01 Lun: 00
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 01 Lun: 01
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 01 Lun: 03
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 01 Lun: 04
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi0 Channel: 00 Id: 00 Lun: 02
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi0 Channel: 00 Id: 01 Lun: 02
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 00 Lun: 02
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06
Host: scsi1 Channel: 00 Id: 01 Lun: 02
  Vendor: IBM      Model: 2145             Rev: 0000
  Type:   Direct-Access                    ANSI  SCSI revision: 06

Collect LUN World Wide ID [WWID] and other Information:

Way #1 - "multipathd":

Best and simple way if you have "multipathd" installed:

[root@B54LFRTMPSTG01 ~]# multipath -ll
mpathe (3600507680c800507f0000000000000c6) dm-4 IBM     ,2145      --> LUN WWID is "600507680c800507f0000000000000c6" (without "3")            
size=55G features='1 queue_if_no_path' hwhandler='0' wp=rw         --> LUN size is 55 GB
|-+- policy='service-time 0' prio=50 status=active
| |- 0:0:0:2 sdc        8:32  active ready running
| `- 1:0:0:2 sdm        8:192 active ready running
`-+- policy='service-time 0' prio=10 status=enabled
  |- 0:0:1:2 sdh        8:112 active ready running
  `- 1:0:1:2 sdr        65:16 active ready running
mpathd (3600507680c800507f0000000000000c5) dm-3 IBM     ,2145      --> LUN WWID is "600507680c800507f0000000000000c5" (without "3")            
size=55G features='1 queue_if_no_path' hwhandler='0' wp=rw         --> LUN size is 55 GB
|-+- policy='service-time 0' prio=50 status=active
| |- 0:0:0:1 sdg        8:96  active ready running
| `- 1:0:0:1 sdl        8:176 active ready running
`-+- policy='service-time 0' prio=10 status=enabled
  |- 0:0:1:1 sdb        8:16  active ready running
  `- 1:0:1:1 sdq        65:0  active ready running
mpathc (3600507680c800507f0000000000000c4) dm-2 IBM     ,2145      --> LUN WWID is "600507680c800507f0000000000000c4" (without "3")            
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw         --> LUN size is 500 GB
|-+- policy='service-time 0' prio=50 status=active
| |- 0:0:0:0 sdf        8:80  active ready running
| `- 1:0:0:0 sdk        8:160 active ready running
`-+- policy='service-time 0' prio=10 status=enabled
  |- 0:0:1:0 sda        8:0   active ready running
  `- 1:0:1:0 sdp        8:240 active ready running
mpathg (3600507680c800507f0000000000000c8) dm-6 IBM     ,2145      --> LUN WWID is "600507680c800507f0000000000000c8" (without "3")            
size=1000G features='1 queue_if_no_path' hwhandler='0' wp=rw       --> LUN size is 1000 GB
|-+- policy='service-time 0' prio=50 status=active
| |- 0:0:0:4 sdj        8:144 active ready running
| `- 1:0:0:4 sdo        8:224 active ready running
`-+- policy='service-time 0' prio=10 status=enabled
  |- 0:0:1:4 sde        8:64  active ready running
  `- 1:0:1:4 sdt        65:48 active ready running
mpathf (3600507680c800507f0000000000000c7) dm-5 IBM     ,2145      --> LUN WWID is "600507680c800507f0000000000000c7" (without "3")            
size=55G features='1 queue_if_no_path' hwhandler='0' wp=rw         --> LUN size is 55 GB
|-+- policy='service-time 0' prio=50 status=active
| |- 0:0:0:3 sdi        8:128 active ready running
| `- 1:0:0:3 sdn        8:208 active ready running
`-+- policy='service-time 0' prio=10 status=enabled
  |- 0:0:1:3 sdd        8:48  active ready running
  `- 1:0:1:3 sds        65:32 active ready running

Way # 2 - Using "lsscsi" or "scsi_id" commands:

If you don't have "multipathd" installed or you want to list WWID for each SCSI Disk you have:

RHEL 7
"/dev/sdf", "/dev/sda", "/dev/sdk" and "/dev/sdp" are the same disk over 4 different paths and they are the same LUN as shown in above "multipath -ll" output

[root@B54LFRTMPSTG01 ~]# lsscsi --scsi-id -g
[0:0:0:0]    disk    IBM      2145             0000  /dev/sdf   3600507680c800507f0000000000000c4  /dev/sg5      --> "/dev/sdf" WWID is "600507680c800507f0000000000000c4" (without 3)
[0:0:0:1]    disk    IBM      2145             0000  /dev/sdg   3600507680c800507f0000000000000c5  /dev/sg6 
[0:0:0:2]    disk    IBM      2145             0000  /dev/sdc   3600507680c800507f0000000000000c6  /dev/sg2 
[0:0:0:3]    disk    IBM      2145             0000  /dev/sdi   3600507680c800507f0000000000000c7  /dev/sg8 
[0:0:0:4]    disk    IBM      2145             0000  /dev/sdj   3600507680c800507f0000000000000c8  /dev/sg9 
[0:0:1:0]    disk    IBM      2145             0000  /dev/sda   3600507680c800507f0000000000000c4  /dev/sg0      --> "/dev/sda" WWID is "600507680c800507f0000000000000c4" (without 3) 
[0:0:1:1]    disk    IBM      2145             0000  /dev/sdb   3600507680c800507f0000000000000c5  /dev/sg1 
[0:0:1:2]    disk    IBM      2145             0000  /dev/sdh   3600507680c800507f0000000000000c6  /dev/sg7 
[0:0:1:3]    disk    IBM      2145             0000  /dev/sdd   3600507680c800507f0000000000000c7  /dev/sg3 
[0:0:1:4]    disk    IBM      2145             0000  /dev/sde   3600507680c800507f0000000000000c8  /dev/sg4 
[1:0:0:0]    disk    IBM      2145             0000  /dev/sdk   3600507680c800507f0000000000000c4  /dev/sg10      --> "/dev/sdk" WWID is "600507680c800507f0000000000000c4" (without 3)
[1:0:0:1]    disk    IBM      2145             0000  /dev/sdl   3600507680c800507f0000000000000c5  /dev/sg11
[1:0:0:2]    disk    IBM      2145             0000  /dev/sdm   3600507680c800507f0000000000000c6  /dev/sg12
[1:0:0:3]    disk    IBM      2145             0000  /dev/sdn   3600507680c800507f0000000000000c7  /dev/sg13
[1:0:0:4]    disk    IBM      2145             0000  /dev/sdo   3600507680c800507f0000000000000c8  /dev/sg14
[1:0:1:0]    disk    IBM      2145             0000  /dev/sdp   3600507680c800507f0000000000000c4  /dev/sg15      --> "/dev/sdp" WWID is "600507680c800507f0000000000000c4" (without 3)
[1:0:1:1]    disk    IBM      2145             0000  /dev/sdq   3600507680c800507f0000000000000c5  /dev/sg16
[1:0:1:2]    disk    IBM      2145             0000  /dev/sdr   3600507680c800507f0000000000000c6  /dev/sg17
[1:0:1:3]    disk    IBM      2145             0000  /dev/sds   3600507680c800507f0000000000000c7  /dev/sg18
[1:0:1:4]    disk    IBM      2145             0000  /dev/sdt   3600507680c800507f0000000000000c8  /dev/sg19

RHEL 6:

[root@fcsmpsql4:~]# multipath -ll mpaths
mpaths (36000144000000010b02b614439810a61) dm-5 EMC,Invista
size=500G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  |- 1:0:0:5 sdg  8:96   active ready running
  |- 2:0:1:5 sdam 66:96  active ready running
  |- 1:0:6:5 sdbg 67:160 active ready running
  |- 2:0:8:5 sdaq 66:160 active ready running
  |- 1:0:8:5 sdq  65:0   active ready running
  |- 2:0:7:5 sdaf 65:240 active ready running
  |- 1:0:7:5 sdl  8:176  active ready running
  `- 2:0:6:5 sdaa 65:160 active ready running

[root@fcsmpsql4:~]# scsi_id --replace-whitespace --whitelisted --device /dev/sdg
36000144000000010b02b614439810a61
[root@fcsmpsql4:~]# scsi_id --replace-whitespace --whitelisted --device /dev/sdam
36000144000000010b02b614439810a61
[root@fcsmpsql4:~]# scsi_id --replace-whitespace --whitelisted --device /dev/sdbg
36000144000000010b02b614439810a61
[root@fcsmpsql4:~]# scsi_id --replace-whitespace --whitelisted --device /dev/sdaq
36000144000000010b02b614439810a61
[root@fcsmpsql4:~]# scsi_id --replace-whitespace --whitelisted --device /dev/sdq
36000144000000010b02b614439810a61
[root@fcsmpsql4:~]# scsi_id --replace-whitespace --whitelisted --device /dev/sdaf
36000144000000010b02b614439810a61
[root@fcsmpsql4:~]# scsi_id --replace-whitespace --whitelisted --device /dev/sdl
36000144000000010b02b614439810a61
[root@fcsmpsql4:~]# scsi_id --replace-whitespace --whitelisted --device /dev/sdaa

RHEL 5

# scsi_id -g -u -s /block/sdm

Way # 3 - Using "sg_inq" commands:

[root@B54LFRTMPSTG01 ~]# lsscsi --scsi-id -g
[0:0:0:0]    disk    IBM      2145             0000  /dev/sdf   3600507680c800507f0000000000000c4  /dev/sg5 
[0:0:0:1]    disk    IBM      2145             0000  /dev/sdg   3600507680c800507f0000000000000c5  /dev/sg6 
[0:0:0:2]    disk    IBM      2145             0000  /dev/sdc   3600507680c800507f0000000000000c6  /dev/sg2 
[0:0:0:3]    disk    IBM      2145             0000  /dev/sdi   3600507680c800507f0000000000000c7  /dev/sg8 
[0:0:0:4]    disk    IBM      2145             0000  /dev/sdj   3600507680c800507f0000000000000c8  /dev/sg9 
[0:0:1:0]    disk    IBM      2145             0000  /dev/sda   3600507680c800507f0000000000000c4  /dev/sg0 
[0:0:1:1]    disk    IBM      2145             0000  /dev/sdb   3600507680c800507f0000000000000c5  /dev/sg1 
[0:0:1:2]    disk    IBM      2145             0000  /dev/sdh   3600507680c800507f0000000000000c6  /dev/sg7 
[0:0:1:3]    disk    IBM      2145             0000  /dev/sdd   3600507680c800507f0000000000000c7  /dev/sg3 
[0:0:1:4]    disk    IBM      2145             0000  /dev/sde   3600507680c800507f0000000000000c8  /dev/sg4 
[1:0:0:0]    disk    IBM      2145             0000  /dev/sdk   3600507680c800507f0000000000000c4  /dev/sg10
[1:0:0:1]    disk    IBM      2145             0000  /dev/sdl   3600507680c800507f0000000000000c5  /dev/sg11
[1:0:0:2]    disk    IBM      2145             0000  /dev/sdm   3600507680c800507f0000000000000c6  /dev/sg12
[1:0:0:3]    disk    IBM      2145             0000  /dev/sdn   3600507680c800507f0000000000000c7  /dev/sg13
[1:0:0:4]    disk    IBM      2145             0000  /dev/sdo   3600507680c800507f0000000000000c8  /dev/sg14
[1:0:1:0]    disk    IBM      2145             0000  /dev/sdp   3600507680c800507f0000000000000c4  /dev/sg15
[1:0:1:1]    disk    IBM      2145             0000  /dev/sdq   3600507680c800507f0000000000000c5  /dev/sg16
[1:0:1:2]    disk    IBM      2145             0000  /dev/sdr   3600507680c800507f0000000000000c6  /dev/sg17
[1:0:1:3]    disk    IBM      2145             0000  /dev/sds   3600507680c800507f0000000000000c7  /dev/sg18
[1:0:1:4]    disk    IBM      2145             0000  /dev/sdt   3600507680c800507f0000000000000c8  /dev/sg19