Centos FC 카드 WWN 및 Online / Offline 확인 및 Multipath 설정

@@ 방법1

#yum -y install sysfsutils

# sysctool -c fc_host -v

Class = "fc_host"

  Class Device = "host1"

  Class Device path = "/sys/devices/pci0000:00/0000:00:03.0/0000:02:00.0/host1/fc_host/host1"

    dev_loss_tmo        = "45"

    fabric_name         = "0x100000051e04b4bf"

    issue_lip           = <store method only>

    max_npiv_vports     = "127"

    node_name           = "0x200000e08b9c8e5f"

    npiv_vports_inuse   = "0"

    port_id             = "0x010600"

    port_name           = "0x210000e08b9c8e5f"

    port_state          = "Online"

    port_type           = "NPort (fabric via point-to-point)"

    speed               = "4 Gbit"

    supported_classes   = "Class 3"

    supported_speeds    = "1 Gbit, 2 Gbit, 4 Gbit"

    symbolic_name       = "QLE2462 FW:v5.08.00 DVR:v8.04.00.08.06.4-k"

    system_hostname     = ""

    tgtid_bind_type     = "wwpn (World Wide Port Name)"

    uevent              =

    vport_create        = <store method only>

    vport_delete        = <store method only>

    Device = "host1"

    Device path = "/sys/devices/pci0000:00/0000:00:03.0/0000:02:00.0/host1"

      fw_dump             =

      nvram               = "ISP "

      optrom              =

      optrom_ctl          = <store method only>

      reset               = <store method only>

      sfp                 = ""

      uevent              = "DEVTYPE=scsi_host"

      vpd                 = "‚."

  Class Device = "host2"

  Class Device path = "/sys/devices/pci0000:00/0000:00:03.0/0000:02:00.1/host2/fc_host/host2"

    dev_loss_tmo        = "45"

    fabric_name         = "0xffffffff"

    issue_lip           = <store method only>

    max_npiv_vports     = "127"

    node_name           = "0x200100e08bbc8e5f"

    npiv_vports_inuse   = "0"

    port_id             = "0x000000"

    port_name           = "0x210100e08bbc8e5f"

    port_state          = "Linkdown"

    port_type           = "Unknown"

    speed               = "unknown"

    supported_classes   = "Class 3"

    supported_speeds    = "1 Gbit, 2 Gbit, 4 Gbit"

    symbolic_name       = "QLE2462 FW:v5.08.00 DVR:v8.04.00.08.06.4-k"

    system_hostname     = ""

    tgtid_bind_type     = "wwpn (World Wide Port Name)"

    uevent              =

    vport_create        = <store method only>

    vport_delete        = <store method only>

    Device = "host2"

    Device path = "/sys/devices/pci0000:00/0000:00:03.0/0000:02:00.1/host2"

      fw_dump             =

      nvram               = "ISP "

      optrom              =

      optrom_ctl          = <store method only>

      reset               = <store method only>

      sfp                 = ""

      uevent              = "DEVTYPE=scsi_host"

      vpd                 = "‚."

@@ 방법2

# cd /sys/class/fc_host

 위 경로에서 

# for i in 0 1 2 3 4 5; do cat host$i/device/fc_host/host$i/port_name; done

@@ 참고

/sys/class/fc_host

위 경로에서 host'n'  번호가 많아서 일일이 찾기가 힘들기 때문에 방법2로 볼 수 있다.

@@ Multipath

패키지 설치 확인

# rpm -qa | grep device-mapper-multipath

# yum -y install device-mapper-multipath ( o/s 설치시 풀패키지라면 설치 되어 있다. )

# mpathconf --enable --with_multipathd y

# /etc/multipath.conf 파일이 생성되면서, multipath 자동 설정됨

# fdisk -l 

...

Disk  /dev/mapper/xxxxx :  xxxx GB 인식 확인

#mkfs.ext4 /dev/mapper/xxxxx 포맷 후 마운트 사용 하면 된다.