在多个清理周期后，云单元无法释放空间

Summary: 在多个清理周期后，云单元无法释放空间。

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Symptoms

这可能发生在启用了云层的任何 DD 中。

如果有许多 GC 挂起周期卡在后台删除处理中，则云清理不会降低利用率。

 

Cause

如果云单元超时过于频繁，DD 无法处理后台删除。

EVT-CLOUD-00001: Unable to access provider for cloud unit edccloudtier2.EVT-OBJ::CloudUnit=edccloudtier2 EVT-INFO::Cause=Timeout was reached
EVT-CLOUD-00001: Unable to access provider for cloud unit edccloudtier2.EVT-OBJ::CloudUnit=edccloudtier2 EVT-INFO::Cause=Cloud profile state is DOWN

 

Resolution

以下是云单元断开连接时可能出现的问题。

  1. DDFS 进入无响应状态或死机。
  2. 数据移动停止或已暂停。
  3. 云清理已中止或不会从云层清理过期数据。
  4. 云调回不起作用或需要时间或显示未找到的数据。

如果多个挂起周期处于停止响应状态，则云单元在清理周期后不会显示利用率下降。证据可以在自动支持中看到。

GC remote delete stats for CP edccloudtier2*:                      Recent       Cumulative
Number of delete list containers <cid,offset> processed:              174            1799
Number of delete list containers <cid> skipped:                       173            1219
Number of regions to delete:                                            0       627732657
Number of regions deleted:                                        8236883       215044853
Bytes deleted:                                                  623322937273    16683421699021
Run time (s):                                                      332316         9324202
Deletion rate (region/s):                                              24              23
>Pending cycles:                                                       17              17

根据场景执行以下步骤。

  • 检查与云提供商的连接，并查看
    • 端口 （443） 上的连接有任何问题
    • 从 DD 检查云提供商的名称解析
    • 如果 DD 和云层之间一切正常，请转至 DD，查看文件系统是否无响应或崩溃。
    • 重新启动 DD 以释放任何停止响应的进程，以获得正确的云连接和处理挂起的 GC 周期。
  • 通过使云连接正确并在 DD 上运行以下命令以停止并重新启动后台删除，可解决此问题。
    停止异步删除 
    # cloud clean background-delete stop
    重新启动批量删除。 
    # cloud clean background-delete start
  • 错误 #234809 - 如果您有多个云单元并有云清理问题，请将 DD 升级到 6.1.2.x。

 

Additional Information

如果有多个挂起周期处于停止响应状态，则云单元在清理周期后不会显示利用率下降。证据可以在自动支持中看到。

解决之前

GC remote delete stats for CP edccloudtier2*:                      Recent       Cumulative
Number of delete list containers <cid,offset> processed:              174            1799
Number of delete list containers <cid> skipped:                       173            1219
Number of regions to delete:                                            0       627732657
Number of regions deleted:                                        8236883       215044853
Bytes deleted:                                                  623322937273    16683421699021
Run time (s):                                                      332316         9324202
Deletion rate (region/s):                                              24              23
>Pending cycles:                                                       17              17

解决后

GC remote delete stats for CP edccloudtier2*:                      Recent       Cumulative
Number of delete list containers <cid,offset> processed:             1285               0
Number of delete list containers <cid> skipped:                       776               0
Number of regions to delete:                                            0               0
Number of regions deleted:                                      165625861               0
Bytes deleted:                                                  11764930559267          0
Run time (s):                                                       19897               0
Deletion rate (region/s):                                            8313               0
Pending cycles:                                                         1               1

可以通过分析多个自动支持并查看 GC 挂起周期来查看证据。下面是一些示例。

autosupport_2018-11-08.out:Pending cycles:                                                      5               5
autosupport_2018-11-13.out:Pending cycles:                                                      6               6
autosupport_2018-11-24.out:Pending cycles:                                                      7               7
autosupport_2018-12-15.out:Pending cycles:                                                      9               9
autosupport_2018-12-16.out:Pending cycles:                                                     10              10
autosupport_2018-12-28.out:Pending cycles:                                                     11              11
autosupport_2018-12-29.out:Pending cycles:                                                     12              12
autosupport_2019-01-11.out:Pending cycles:                                                     13              13
autosupport_2019-01-18.out:Pending cycles:                                                     14              14
autosupport_2019-01-19.out:Pending cycles:                                                     15              15
autosupport_2019-02-05.out:Pending cycles:                                                     16              16
autosupport_2019-02-07.out:Pending cycles:                                                     17              17
autosupport_2019-02-08.out:Pending cycles:                                                      1               1
autosupport_2019-02-09.out:Pending cycles:                                                      1               1
autosupport_2019-02-10.out:Pending cycles:                                                      1               1

云单元超时问题可以在日志或“# alerts show history”中查看

INFO: Event posted: m0-1585 (21000631:553649713): EVT-CLOUD-00001: Unable to access provider for cloud unit edccloudtier2.EVT-OBJ::CloudUnit=edccloudtier2 EVT-INFO::Cause=Cloud profile state is DOWN
INFO: Event posted: m0-1586 (21000632:553649714): EVT-CLOUD-00001: Unable to access provider for cloud unit edccloudtier2.EVT-OBJ::CloudUnit=edccloudtier2 EVT-INFO::Cause=Cloud profile state is DOWN
INFO: Event posted: m0-1587 (21000633:553649715): EVT-CLOUD-00001: Unable to access provider for cloud unit edccloudtier2.EVT-OBJ::CloudUnit=edccloudtier2 EVT-INFO::Cause=Cloud profile state is DOWN
INFO: Event posted: m0-1588 (21000634:553649716): EVT-CLOUD-00001: Unable to access provider for cloud unit edccloudtier2.EVT-OBJ::CloudUnit=edccloudtier2 EVT-INFO::Cause=Cloud profile state is DOWN
INFO: Event posted: m0-1589 (21000635:553649717): EVT-CLOUD-00001: Unable to access provider for cloud unit edccloudtier2.EVT-OBJ::CloudUnit=edccloudtier2 EVT-INFO::Cause=Cloud profile state is DOWN
INFO: Event posted: m0-1591 (21000637:553649719): EVT-CLOUD-00001: Unable to access provider for cloud unit edccloudtier2.EVT-OBJ::CloudUnit=edccloudtier2 EVT-INFO::Cause=Cloud profile state is DOWN
INFO: Event posted: m0-1578 (2100062a:553649706): EVT-CLOUD-00001: Unable to access provider for cloud unit edccloudtier2.EVT-OBJ::CloudUnit=edccloudtier2 EVT-INFO::Cause=Cloud profile state is DOWN
INFO: Event posted: m0-1579 (2100062b:553649707): EVT-CLOUD-00001: Unable to access provider for cloud unit edccloudtier2.EVT-OBJ::CloudUnit=edccloudtier2 EVT-INFO::Cause=Cloud profile state is DOWN
INFO: Event posted: m0-1580 (2100062c:553649708): EVT-CLOUD-00001: Unable to access provider for cloud unit edccloudtier2.EVT-OBJ::CloudUnit=edccloudtier2 EVT-INFO::Cause=Cloud profile state is DOWN
INFO: Event posted: m0-1581 (2100062d:553649709): EVT-CLOUD-00001: Unable to access provider for cloud unit edccloudtier2.EVT-OBJ::CloudUnit=edccloudtier2 EVT-INFO::Cause=Cloud profile state is DOWN
INFO: Event posted: m0-1582 (2100062e:553649710): EVT-CLOUD-00001: Unable to access provider for cloud unit edccloudtier2.EVT-OBJ::CloudUnit=edccloudtier2 EVT-INFO::Cause=Cloud profile state is DOWN
INFO: Event posted: m0-1583 (2100062f:553649711): EVT-CLOUD-00001: Unable to access provider for cloud unit edccloudtier2.EVT-OBJ::CloudUnit=edccloudtier2 EVT-INFO::Cause=Cloud profile state is DOWN
INFO: Event posted: m0-1584 (21000630:553649712): EVT-CLOUD-00001: Unable to access provider for cloud unit edccloudtier2.EVT-OBJ::CloudUnit=edccloudtier2 EVT-INFO::Cause=Cloud profile state is DOWN

 

Affected Products

Data Domain

Products

Data Domain
Article Properties
Article Number: 000056238
Article Type: Solution
Last Modified: 16 Dec 2025
Version:  4
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