LUN mapping
Trouver le WWN des ports fibres sous Linux
Avec la commande « systool », on peut trouver les 2 WWN des 2 ports fibres :
[root@linux ~]# systool -c fc_host -v Class = "fc_host" Class Device = "host2" Class Device path = "/sys/class/fc_host/host2" fabric_name = "0x1000000533aa7b76" issue_lip = <store method only> node_name = "0x5001438409ac4f81" port_id = "0x150b00" port_name = "0x5001438409ac4f80" port_state = "Online" port_type = "NPort (fabric via point-to-point)" speed = "8 Gbit" supported_classes = "Class 3" supported_speeds = "1 Gbit, 2 Gbit, 4 Gbit, 8 Gbit" symbolic_name = "HPAK344A FW:v4.04.09 DVR:v8.03.01.04.05.05-k" system_hostname = "" tgtid_bind_type = "wwpn (World Wide Port Name)" uevent = <store method only> Device = "host2" Device path = "/sys/devices/pci0000:00/0000:00:03.0/0000:09:00.0/host2" ct = edc = <store method only> els = fw_dump = nvram = "ISP " optrom_ctl = <store method only> optrom = reset = <store method only> sfp = "" uevent = <store method only> vpd = "▒&"
Class Device = "host3" Class Device path = "/sys/class/fc_host/host3" fabric_name = "0x1000000533aac397" issue_lip = <store method only> node_name = "0x5001438809ac71b7" port_id = "0x160b00" port_name = "0x5001438809ac71b6" port_state = "Online" port_type = "NPort (fabric via point-to-point)" speed = "8 Gbit" supported_classes = "Class 3" supported_speeds = "1 Gbit, 2 Gbit, 4 Gbit, 8 Gbit" symbolic_name = "HPAK344A FW:v4.04.09 DVR:v8.03.01.04.05.05-k" system_hostname = "" tgtid_bind_type = "wwpn (World Wide Port Name)" uevent = <store method only> Device = "host3" Device path = "/sys/devices/pci0000:00/0000:00:09.0/0000:06:00.0/host3" ct = edc = <store method only> els = fw_dump = nvram = "ISP " optrom_ctl = <store method only> optrom = reset = <store method only> sfp = "" uevent = <store method only> vpd = "▒&"
Trouver le LUN ID sous Linux
Avec la commande « multipath », on peut trouver les LUN ID (ici 3) :
[root@linux ~]# multipath -l mpath2 (362060e80104a0b90053048d15000001f) dm-7 HITACHI,DF600F [size=50G][features=0][hwhandler=0][rw] \_ round-robin 0 [prio=0][active] \_ 2:0:0:2 sdc 8:32 [active][undef] \_ 3:0:0:2 sdf 8:80 [active][undef] mpath1 (362060e80104a0b90053048d15000000d) dm-6 HITACHI,DF600F [size=50G][features=0][hwhandler=0][rw] \_ round-robin 0 [prio=0][active] \_ 2:0:0:1 sdb 8:16 [active][undef] \_ 3:0:0:1 sde 8:64 [active][undef] mpath0 (362060e80104a0b90053048d150000014) dm-5 HITACHI,DF600F [size=400G][features=0][hwhandler=0][rw] \_ round-robin 0 [prio=0][active] \_ 2:0:0:0 sda 8:0 [active][undef] \_ 3:0:0:0 sdd 8:48 [active][undef]
On récupère les derniers chiffres en hexadécimale des WWN et on les converti en décimal :
- 1f (héxa) = 31 (décimal)
- 0d (héxa) = 13 (décimal)
- 14 (héxa) = 20 (décimal)
Ce serveur est donc zoné sur 3 LUN dont les ID sont 31, 13 et 20.
Remarque : la procédure est identique pour déterminer les LUN zonées sur les ESX, il suffit de convertir les derniers chiffres des WWN des datastores.
Trouver le WWN des ports fibres sous Solaris
Avec la commande « luxadm », on peut trouver les 2 WWN des 2 ports fibres :
solaris{root}:/> luxadm -e port
Found path to 3 HBA ports
/devices/pci@8,600000/fibre-channel@1/fp@0,0:devctl CONNECTED
/devices/pci@8,600000/fibre-channel@2/fp@0,0:devctl CONNECTED
/devices/pci@9,600000/SUNW,qlc@2/fp@0,0:devctl CONNECTED
solaris{root}:/> luxadm -e dump_map /devices/pci@8,600000/fibre-channel@1/fp@0,0:devctl
Pos Port_ID Hard_Addr Port WWN Node WWN Type
0 b1600 0 51160e80100d5b90 51160e80100d5b90 0x0 (Disk device)
1 152500 0 210110e08b1ae504 201100e08b1ae504 0x1f (Unknown Type,Host Bus Adapter)
solaris{root}:/> luxadm -e dump_map /devices/pci@8,600000/fibre-channel@2/fp@0,0:devctl
Pos Port_ID Hard_Addr Port WWN Node WWN Type
0 c1600 0 51160e80100d5b98 51160e80100d5b98 0x0 (Disk device)
1 162500 0 210110e08b1ad804 210110e08b1ad804 0x1f (Unknown Type,Host Bus Adapter)