整理旧的 Windows Server Backup 快照

Question

我正在从预定作业运行 wbadmin，将我的 C: 和 D: 驱动器备份到我的 E: 和（我相信！）包括系统状态：

wbadmin start backup -backuptarget:e: -include:c:,d: -allCritical -noVerify -quiet

我想删除旧备份，但我担心我能找到的所有信息都说wbadmin用于删除旧系统状态备份和vssadmin删除其他备份。据我所知，我的备份是系统状态备份，但在 E: 上使用 VSS 进行存储，所以我担心尝试这两种技术中的任何一种，以免丢失我的所有备份。

这是一个家庭网络，所以我没有备用服务器来测试它。

我也很乐意简单地限制 E: 上使用的空间，但我无法理解相关命令的/for和/on参数之间的区别vssadmin。

作为参考，这里是输出vssadmin show shadows：

Contents of shadow copy set ID: {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}
   Contained 1 shadow copies at creation time: 07/01/2011 08:12:05
      Shadow Copy ID: {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}
         Original Volume: (E:)\\?\Volume{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}\
         Shadow Copy Volume: \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy83
         Originating Machine: x.y.com
         Service Machine: x.y.com
         Provider: 'Microsoft Software Shadow Copy provider 1.0'
         Type: DataVolumeRollback
         Attributes: Persistent, No auto release, No writers, Differential

[... repeated a lot...]

vssadmin show shadowstorage：

Shadow Copy Storage association
   For volume: (C:)\\?\Volume{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}\
   Shadow Copy Storage volume: (C:)\\?\Volume{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}\
   Used Shadow Copy Storage space: 0 B
   Allocated Shadow Copy Storage space: 0 B
   Maximum Shadow Copy Storage space: 5.859 GB

Shadow Copy Storage association
   For volume: (D:)\\?\Volume{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}\
   Shadow Copy Storage volume: (D:)\\?\Volume{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}\
   Used Shadow Copy Storage space: 0 B
   Allocated Shadow Copy Storage space: 0 B
   Maximum Shadow Copy Storage space: 40.317 GB

Shadow Copy Storage association
   For volume: (E:)\\?\Volume{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}\
   Shadow Copy Storage volume: (E:)\\?\Volume{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}\
   Used Shadow Copy Storage space: 168.284 GB
   Allocated Shadow Copy Storage space: 171.15 GB
   Maximum Shadow Copy Storage space: UNBOUNDED

wbadmin get versions：

Backup time: 07/01/2011 03:00
Backup target: 1394/USB Disk labeled xxxxxxxxx(E:)
Version identifier: 01/07/2011-03:00
Can Recover: Volume(s), File(s), Application(s), Bare Metal Recovery, System State

[... repeated a lot...]