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netapp volume 扩容,空间不足,状态error_ex

netapp volume 扩容,空间不足,状态error_ex

作者: 笨手笨脚越 | 来源:发表于2017-07-28 17:39 被阅读203次

    测试步骤:

    1. 创建一个1G大小的卷:
      cinder create --name wangyue01 --volume-type netapp_volume_type 1
    2. 扩容到100G:
      cinder extend wangyue01 100
    3. 查看卷状态变成 error_extending
    4. 检查cinder-volume.log日志:
    2017-07-28 15:13:07.410 87 ERROR cinder.volume.manager     return f(*args, **kwargs)
    2017-07-28 15:13:07.410 87 ERROR cinder.volume.manager   File "/var/lib/kolla/venv/lib/python2.7/site-packages/cinder/volume/drivers/netapp/dataontap/client/client_cmode.py", line 507, in clone_lun
    2017-07-28 15:13:07.410 87 ERROR cinder.volume.manager     self.connection.invoke_successfully(clone_create, True)
    2017-07-28 15:13:07.410 87 ERROR cinder.volume.manager   File "/var/lib/kolla/venv/lib/python2.7/site-packages/cinder/volume/drivers/netapp/dataontap/client/api.py", line 227, in invoke_successfully
    2017-07-28 15:13:07.410 87 ERROR cinder.volume.manager     raise NaApiError(code, msg)
    2017-07-28 15:13:07.410 87 ERROR cinder.volume.manager NaApiError: NetApp API failed. Reason - 17161:Clone operation failed to start: Partial 'File restore or LUN clone' operations are not supported on secondary compression enabled volumes.
    

    问题确认:

    看起来是netapp的api返回空间不足了!
    在netapp命令行界面,可用指令lun show -instance xxxx检查lun的最大扩展限制

    NetApp2650::lun> lun show -instance /vol/vol_09052017_154346_88/volume-bad235e0-6e2c-47ce-973e-9ecde458a32f
    
                  Vserver Name: bm_test_svm
                      LUN Path: /vol/vol_09052017_154346_88/volume-bad235e0-6e2c-47ce-973e-9ecde458a32f
                   Volume Name: vol_09052017_154346_88
                    Qtree Name: ""
                      LUN Name: volume-bad235e0-6e2c-47ce-973e-9ecde458a32f
                      LUN Size: 1GB
                       OS Type: linux
             Space Reservation: enabled
                 Serial Number: 808ta$Jb4Oc3
           Serial Number (Hex): 3830387461244a62344f6333
                       Comment: 
    Space Reservations Honored: false
              Space Allocation: disabled
                         State: online
                      LUN UUID: c0bfbbde-ff3d-4ced-a0b0-130cb09b6c12
                        Mapped: unmapped
                    Block Size: 512
              Device Legacy ID: -
              Device Binary ID: -
                Device Text ID: -
                     Read Only: false
         Fenced Due to Restore: false
                     Used Size: 0
           Maximum Resize Size: 64.00GB
                 Creation Time: 7/28/2017 15:52:41
                         Class: regular
          Node Hosting the LUN: NetApp2650-01
              QoS Policy Group: -
           Caching Policy Name: -
                         Clone: false
      Clone Autodelete Enabled: false
           Inconsistent Import: false
    

    可以看到 Maximum Resize Size: 64.00GB ,最大才64GB,难怪我们扩容到100G会有限制。
    测试发现:

    lun size Maximum Resize Size
    1GB-10GB 64GB
    11GB 128GB
    20GB 256GB
    30GB 320GB
    40GB 448GB

    规律不是很明确。文档里也没用提示。
    另外,测试发现,只有创建LUN的时候选择为此 LUN 选择一个现有的卷或 qtree的时候才有最大扩容限制,如果选用为此 LUN 选择一个现有的卷或 qtree来创建,则没有限制。cinder调用netapp api创建lun,用的是为此 LUN 选择一个现有的卷或 qtree

    图片.png
    华为存储是没有这种问题的

    如果卷状态变成 error_extending,如何恢复可用?

    用指令修改状态为available
    cinder reset-state 142b3c02-2127-4ab8-b692-d52a0c2bbb70 --state available
    只要扩容前的卷状态是available,那么是可以正常恢复的。

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