在 Oracle® Solaris 11.2 中管理 SAN 设备和多路径

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更新时间： 2014 年 12 月
 
 

显示多路径支持信息

可以使用 mpathadm 命令显示多路径支持信息并管理多路径搜索。多路径支持和属性信息用多路径管理 API 插件库名称进行标识，可使用 mpathadm 命令显示该插件库名称。

如何显示多路径支持信息

  1. 成为管理员。
  2. 确定系统上的多路径支持。
    # mpathadm list mpath-support
mpath-support: libmpscsi_vhci.so
  3. 显示指定 mpath 支持名称的多路径支持属性。
    # mpathadm show mpath-support libmpscsi_vhci.so
mpath-support:  libmpscsi_vhci.so
        Vendor:  Sun Microsystems
        Driver Name:  scsi_vhci
        Default Load Balance:  round-robin
        Supported Load Balance Types:  
                round-robin
                logical-block
        Allows To Activate Target Port Group Access:  yes
        Allows Path Override:  no
        Supported Auto Failback Config:  yes
        Auto Failback:  on
        Failback Polling Rate (current/max):  0/0
        Supported Auto Probing Config:  0
        Auto Probing:  NA
        Probing Polling Rate (current/max):  NA/NA
        Supported Devices:
                Vendor:  SUN     
                Product:  T300            
                Revision:  
                Supported Load Balance Types:
                        round-robin

                Vendor:  SUN     
                Product:  T4              
                Revision:  
                Supported Load Balance Types:
                        round-robin
.
.
.

    命令输出还会显示多路径支持软件支持的设备产品的列表。缺省情况下，多路径支持 libmpscsi_vhci.so 库文件支持符合 T10 目标端口组的设备。

如何显示特定启动器端口的属性

以下步骤描述如何显示启动器端口的属性。

  1. 列出启动器端口。
    # mpathadm list initiator-port
Initiator Port:  iqn.1986-03.com.sun:01:ffffffffffff.4e94f9bd,4000002a00ff
Initiator Port:  210100e08ba41feb
Initiator Port:  210000e08b841feb
  2. 显示特定启动器端口的属性。 
    # mpathadm show initiator-port 2000000173018713
Initiator Port:  210100e08ba41feb
        Transport Type:  Fibre Channel
        OS Device File:  /devices/pci@1,0/pci1022,7450@1/pci1077,141@2,1/fp@0,0

    如果不使用 mpathadm show initiator-port 命令指定启动器端口，则将显示所有发现的启动器端口的属性。

如何显示特定 LU 信息

使用 mpathadm 命令显示 LU 列表以及每个 LU 的属性。显示的 LU 列表中又包含可用于显示特定 LU 的属性的名称。

  1. 显示多路径 LU 的列表。
    # mpathadm list lu
        /dev/rdsk/c0t600144F08069703400004E828EE10004d0s2
                Total Path Count: 8
                Operational Path Count: 8
        /dev/rdsk/c0t600144F08069703400004E8183DF0002d0s2
                Total Path Count: 8
                Operational Path Count: 8
        /dev/rdsk/c0t600A0B800026D63A0000A4994E2342D4d0s2
                Total Path Count: 4
                Operational Path Count: 4
        /dev/rdsk/c0t600A0B800029065C00007CF54E234013d0s2
                Total Path Count: 4
                Operational Path Count: 4
        /dev/rdsk/c0t600A0B800026D63A0000A4984E234298d0s2
                Total Path Count: 4
                Operational Path Count: 4
        /dev/rdsk/c0t600A0B800029065C00007CF44E233FCFd0s2
                Total Path Count: 4
                Operational Path Count: 4
        /dev/rdsk/c0t600A0B800026D63A0000A4974E23424Ed0s2
                Total Path Count: 4
                Operational Path Count: 4
.
.
.
  2. 显示使用列表中 LU 名称的特定 LU 的配置信息。 
    # mpathadm show lu /dev/rdsk/c4t60003BA27D2120004204AC2B000DAB00d0s2
        mpath-support:  libmpscsi_vhci.so
        Vendor:  SUN     
        Product:  Sun Storage NAS
        Revision:  1.0 
        Name Type:  unknown type
        Name:  600144f08069703400004e828ee10004
        Asymmetric:  yes
        Current Load Balance:  round-robin
        Logical Unit Group ID:  NA
        Auto Failback:  on
        Auto Probing:  NA

        Paths:  
                Initiator Port Name:  210100e08ba41feb
                Target Port Name:  2100001b329b6c3f
                Override Path:  NA
                Path State:  OK
                Disabled:  no

                Initiator Port Name:  210100e08ba41feb
                Target Port Name:  2101001b32bb6c3f
                Override Path:  NA
                Path State:  OK
                Disabled:  no

                Initiator Port Name:  210100e08ba41feb
                Target Port Name:  2100001b329b793c
                Override Path:  NA
                Path State:  OK
                Disabled:  no
.
.
.

        Target Port Groups:  
                ID:  0
                Explicit Failover:  no
                Access State:  active optimized
                Target Ports:
                        Name:  2100001b329b6c3f
                        Relative ID:  1

                        Name:  2101001b32bb6c3f
                        Relative ID:  2

                ID:  1
                Explicit Failover:  no
                Access State:  standby
                Target Ports:
                        Name:  2100001b329b793c
                        Relative ID:  257

                        Name:  2101001b32bb793c
                        Relative ID:  256

    如果不使用 mpathadm show lu 命令指定 LU 名称，则将显示有关所有发现的逻辑单元的信息。

如何显示与特定目标端口相关联的所有 LU

使用以下步骤显示通过目标端口的路径。

  1. 显示 LU 列表。
    # mpathadm list lu
       /dev/rdsk/c0t600144F08069703400004E828EE10004d0s2
                Total Path Count: 8
                Operational Path Count: 8
        /dev/rdsk/c0t600144F08069703400004E8183DF0002d0s2
                Total Path Count: 8
                Operational Path Count: 8
        /dev/rdsk/c0t600A0B800026D63A0000A4994E2342D4d0s2
                Total Path Count: 4
                Operational Path Count: 4
        /dev/rdsk/c0t600A0B800029065C00007CF54E234013d0s2
                Total Path Count: 4
                Operational Path Count: 4
.
.
.
  2. 显示特定 LU 的信息，以确定目标端口。
    # mpathadm show lu /dev/rdsk/c0t600A0B800029065C00007CF54E234013d0s2
Logical Unit:  /dev/rdsk/c0t600A0B800029065C00007CF54E234013d0s2
        mpath-support:  libmpscsi_vhci.so
        Vendor:  SUN     
        Product:  CSM200_R        
        Revision:  0660
        Name Type:  unknown type
        Name:  600a0b800029065c00007cf54e234013
        Asymmetric:  yes
        Current Load Balance:  round-robin
        Logical Unit Group ID:  NA
        Auto Failback:  on
        Auto Probing:  NA

        Paths:  
                Initiator Port Name:  210000e08b841feb
                Target Port Name:  200800a0b826d63b
                Override Path:  NA
                Path State:  OK
                Disabled:  no

                Initiator Port Name:  210000e08b841feb
                Target Port Name:  200900a0b826d63b
                Override Path:  NA
                Path State:  OK
                Disabled:  no
.
.
.

        Target Port Groups:  
                ID:  4
                Explicit Failover:  yes
                Access State:  standby
                Target Ports:
                        Name:  200800a0b826d63b
                        Relative ID:  0

                        Name:  200800a0b826d63c
                        Relative ID:  0

                ID:  14
                Explicit Failover:  yes
                Access State:  active
                Target Ports:
                        Name:  200900a0b826d63b
                        Relative ID:  0

                        Name:  200900a0b826d63c
                        Relative ID:  0
  3. 显示特定的目标端口信息。
    # mpathadm list lu -t 20030003ba27d212
mpath-support:  libmpscsi_vhci.so
        /dev/rdsk/c0t600A0B800026D63A0000A4994E2342D4d0s2
                Total Path Count: 4
                Operational Path Count: 4
mpath-support:  libmpscsi_vhci.so
        /dev/rdsk/c0t600A0B800029065C00007CF54E234013d0s2
                Total Path Count: 4
                Operational Path Count: 4
mpath-support:  libmpscsi_vhci.so
        /dev/rdsk/c0t600A0B800026D63A0000A4984E234298d0s2
                Total Path Count: 4
                Operational Path Count: 4
mpath-support:  libmpscsi_vhci.so
        /dev/rdsk/c0t600A0B800029065C00007CF44E233FCFd0s2
                Total Path Count: 4
                Operational Path Count: 4
.
.
.

如何显示特定名称的 LU

显示有关多路径 LU 的详细信息，包括路径和目标端口组信息。请注意，信息中的名称属性表示该 LU 的标识符，它是从硬件派生出来的，并由该系统使用。如果此名称源自 SCSI Inquiry 重要产品数据 (Vital Product Data, VPD) 页面 83h，则名称类型属性表示 SCSI 标准定义的一个关联标识符类型。

  1. 显示多路径 LU 的列表。
    # mpathadm list lu
        /dev/rdsk/c0t600144F08069703400004E828EE10004d0s2
                Total Path Count: 8
                Operational Path Count: 8
        /dev/rdsk/c0t600144F08069703400004E8183DF0002d0s2
                Total Path Count: 8
                Operational Path Count: 8
        /dev/rdsk/c0t600A0B800026D63A0000A4994E2342D4d0s2
                Total Path Count: 4
                Operational Path Count: 4
        /dev/rdsk/c0t600A0B800029065C00007CF54E234013d0s2
                Total Path Count: 4
                Operational Path Count: 4
        /dev/rdsk/c0t600A0B800026D63A0000A4984E234298d0s2
                Total Path Count: 4
                Operational Path Count: 4
        /dev/rdsk/c0t600A0B800029065C00007CF44E233FCFd0s2
                Total Path Count: 4
                Operational Path Count: 4
.
.
.
  2. 显示选定 LU 的配置信息。 
    # mpathadm show lu /dev/rdsk/c0t600A0B800026D63A0000A4994E2342D4d0s2
Logical Unit:  /dev/rdsk/c0t600A0B800026D63A0000A4994E2342D4d0s2
        mpath-support:  libmpscsi_vhci.so
        Vendor:  SUN     
        Product:  CSM200_R        
        Revision:  0660
        Name Type:  unknown type
        Name:  600a0b800026d63a0000a4994e2342d4
        Asymmetric:  yes
        Current Load Balance:  round-robin
        Logical Unit Group ID:  NA
        Auto Failback:  on
        Auto Probing:  NA

        Paths:  
                Initiator Port Name:  210000e08b841feb
                Target Port Name:  200800a0b826d63b
                Override Path:  NA
                Path State:  OK
                Disabled:  no

                Initiator Port Name:  210000e08b841feb
                Target Port Name:  200900a0b826d63b
                Override Path:  NA
                Path State:  OK
                Disabled:  no

                Initiator Port Name:  210000e08b841feb
                Target Port Name:  200800a0b826d63c
                Override Path:  NA
                Path State:  OK
                Disabled:  no

                Initiator Port Name:  210000e08b841feb
                Target Port Name:  200900a0b826d63c
                Override Path:  NA
                Path State:  OK
                Disabled:  no

        Target Port Groups:  
                ID:  3
                Explicit Failover:  yes
                Access State:  active
                Target Ports:
                        Name:  200800a0b826d63b
                        Relative ID:  0

                        Name:  200800a0b826d63c
                        Relative ID:  0

                ID:  13
                Explicit Failover:  yes
                Access State:  standby
                Target Ports:
                        Name:  200900a0b826d63b
                        Relative ID:  0

                        Name:  200900a0b826d63c
                        Relative ID:  0

    可以使用 mpathadm show lu 命令指定 –e 或 –-path-missing 选项以仅显示缺少的路径的逻辑单元。

  3. 显示选定 LU 的信息。
    # mpathadm list lu -n 600a0b800026d63a0000a4994e2342d4
mpath-support:  libmpscsi_vhci.so
        /dev/rdsk/c0t600A0B800026D63A0000A4994E2342D4d0s2
                Total Path Count: 4
                Operational Path Count: 4
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