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为什么卷总空间大于聚合分配的空间?

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适用场景

  • ONTAP 9
  • Data ONTAP 8 7-模式

问题解答

  • 在计算聚合中占用的卷空间之前,请按如下所示检查卷选项:
Data ONTAP 7- 模式: fs_size_fixed
 
示例:
NodeName> vol status -v voldp
     Volume State       Status         Options
     voldp online       raid_dp, flex      nosnap=off, nosnapdir=off, minra=off,
                 snapmirrored      no_atime_update=off, nvfail=off,
                 read-only        ignore_inconsistent=off, snapmirrored=on,
                 64-bit         create_ucode=off, convert_ucode=off,
                            maxdirsize=73400, schedsnapname=ordinal,
                           fs_size_fixed=on, guarantee=volume,

 
 
ONTAP 9 filesys-size-fixed
 
示例:
ClusterName::> volume show -volume voldp -fields filesys-size-fixed
vserver volume  filesys-size-fixed
------- ------- ------------------
svm1   voldp   True

 
  • 如果状态为 "on/True" ,则表示卷文件系统已修复。它不会反映聚合占用的实际大小。
  • 如果卷为读 / 写卷,请将其设置为 "关 / 错" 以检查聚合占用的卷空间。

追加信息

volume修改
[-filesys-size-fixing{true | false}]-文件系统大小已固定

    此参数仅适用于DP关系。
此选项会使文件系统保持相同大小、并且在SnapMirrored卷关系中断或对其执行卷添加时不会增长或缩减。
当卷成为SnapMir并 已执行SnapMir基于 的卷时、此值会自动设置为true。
对卷发出SnapMirror中断命令后、此参数仍会设置为true。 
这样、无需向源卷添加磁盘、即可将卷通过SnapMback镜像到源卷。
如果卷是灵活卷、并且卷大小大于文件系统大小、则将此选项设置为false会强制卷大小等于文件系统大小。
默认设置为false

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