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自动检测主机实体

05/03/2022 贡献者

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SnapDrive for UNIX 会自动检测某些命令的主机实体配置。一些 snap storage 命令只需要主机实体的名称。在这些情况下，您无需指定主机实体的类型。

以下命令已启用自动检测：

s存储删除
s存储调整大小
snap create
snap restore
snap connect
snap list

存在主机实体时， SnapDrive for UNIX 会自动检测主机实体的类型。在这种情况下，您只需要提供主机实体的名称，而不必指定类型。SnapDrive snap 命令和某些 storage 命令也只需要主机实体的名称；您不必指定类型。

对于 SnapDrive 4.1 及更高版本，自动检测命令需要额外的时间，因为它会收集所有存储资源的详细信息。如果要加快响应速度，请使用 SnapDrive for UNIX 命令指定文件规范。

您可以通过运行 SnapDrive storage delete` 命令为存储删除操作启用自动检测。

示例 1 ： *

snapdrive storage delete host_dg my_fs -full

在此示例中，系统会自动检测到 host_dg 和 my_fs 。

示例 2 ： *

snapdrive storage delete mydg -fs myfs -full

在此示例中，系统会自动检测到 mydg 磁盘组。

您可以通过运行 SnapDrive storage resize` 命令为存储调整大小操作启用自动检测。

例如 * ：

[root@lnx197-132 ~]# snapdrive storage resize mydg23 -addlun -growby 10m
Auto detecting the type of filespec 'mydg23' in progress ... detected as disk group
        discovering filer LUNs in disk group mydg23...done
        LUN bart:/vol/voldm/mydg23-1_SdLun ... created

        mapping new lun(s) ... done
        discovering new lun(s) ... done.
        initializing LUN(s) and adding to disk group mydg23...done
Disk group mydg23 has been resized

您可以通过运行 SnapDrive snap create` 命令来为 snap create 操作启用自动检测。

例如 * ：

root@lnx197-132 ~]# snapdrive snap create mydg22 mydg23 /mnt/mnt12 -snapname new_snap
Auto detecting the type of filespec 'mydg22' in progress ... detected as disk group
Auto detecting the type of filespec 'mydg23' in progress ... detected as disk group
Auto detecting the type of filespec '/mnt/mnt12 ' in progress ... detected as file system

Starting snap create /dev/mapper/mydg22, /dev/mapper/mydg23, /mnt/mnt12
  WARNING:  DO NOT CONTROL-C!
            If snap create is interrupted, incomplete snapdrive
                 generated data may remain on the filer volume(s)
                 which may interfere with other snap operations.
Successfully created snapshot new_snap on bart:/vol/voldm

        snapshot new_snap contains:
        disk group mydg22
        disk group mydg23
        disk group dg121 containing host volumes
                lv121 (filesystem: /mnt/mnt12)

您可以通过运行 SnapDrive snap connect` 命令为 snap connect 操作启用自动检测。

例如 * ：

[root@lnx197-132 ~]# snapdrive snap connect mydg22 xxx mydg23 yyy -snapname bart:/vol/voldm:snap_1
Auto detecting the type of filespec 'mydg22' in progress ... detected as disk group
Auto detecting the type of filespec 'xxx' in progress ...
        xxx does not exist - Taking xxx as a destination to fspec mydg22Auto detecting the type of filespec 'mydg23' in progress ... detected as disk group
Auto detecting the type of filespec 'yyy' in progress ...
        yyy does not exist - Taking yyy as a destination to fspec mydg23
 connecting mydg22:
        LUN copy mydg22_SdLun_0 ... created
                 (original: bart:/vol/voldm/mydg22_SdLun)

        mapping new lun(s) ... done

 connecting mydg23:
        LUN copy mydg23_SdLun_1 ... created
                 (original: bart:/vol/voldm/mydg23_SdLun)

        mapping new lun(s) ... done
        discovering new lun(s) ... done
        Importing xxx, yyy
Successfully connected to snapshot bart:/vol/voldm:snap_1
        disk group xxx
        disk group yyy

您可以通过运行 SnapDrive snap restore` 命令来为快照还原操作启用自动检测。

例如 * ：

snapdrive snap restore bart:/vol/voldm/lun44 /mnt/fs3 fs5_SdDg/fs5_SdHv fs4_SdDg -snapname bart:/vol/voldm:toi_snap

        Auto detection of file_spec(s) in progress ...
               - 'bart:/vol/voldm/lun44' detected as LUN.
               - '/mnt/fs3' detected as file system.
               - 'fs5_SdDg/fs5_SdHv' detected as logical volume.
               - 'fs4_SdDg' detected as disk group.
        Starting to restore /dev/mapper/fs4_SdDg, /mnt/fs3, /dev/mapper/fs5_SdDg-fs5_SdHv, bart:/vol/voldm/lun44
         WARNING:  This can take several minutes.
           DO NOT CONTROL-C!
           If snap restore is interrupted, the filespecs
           being restored may have inconsistent or corrupted
           data.
       For detailed progress information, see the log file /var/log/sd-recovery.log
           Importing fs4_SdDg, fs3_SdDg, fs5_SdDg
           Successfully restored snapshot toi_snap on bart:/vol/voldm
       disk group fs4_SdDg containing host volumes
               fs4_SdHv (filesystem: /mnt/fs4)
       disk group fs3_SdDg containing host volumes
               fs3_SdHv (filesystem: /mnt/fs3)
       disk group fs5_SdDg containing host volumes
               fs5_SdHv (filesystem: /mnt/fs5)
       raw LUN: bart:/vol/voldm/lun44

对于不正确的文件规范， SnapDrive 不支持自动检测 Snap 连接和 Snap 还原操作。

您可以通过运行 SnapDrive snap list` 命令来为快照列表操作启用自动检测。

例如 * ：

root@lnx197-132 ~]# snapdrive snap list -snapname bart:/vol/voldm:snap_1

snap name                            host                   date         snapped
--------------------------------------------------------------------------------
bart:/vol/voldm:snap_1           lnx197-132.xyz.com Apr  9 06:04 mydg22 mydg23 dg121
[root@lnx197-132 ~]# snapdrive snap list mydg23
Auto detecting the type of filespec 'mydg23' in progress ... detected as disk group

snap name                            host                   date         snapped
--------------------------------------------------------------------------------
bart:/vol/voldm:snap_1           lnx197-132.xyz.com Apr  9 06:04 mydg22 mydg23 dg121
bart:/vol/voldm:all                  lnx197-132.xyz.com Apr  9 00:16 mydg22 mydg23 fs1_SdDg
bart:/vol/voldm:you                  lnx197-132.xyz.com Apr  8 21:03 mydg22 mydg23
bart:/vol/voldm:snap_2                  lnx197-132.xyz.com Apr  8 18:05 mydg22 mydg23

自动检测主机实体

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