（一）Windows维护工具的注意事项（disk cleanup/disk defragmenter/chkdisk）

Disk Cleanup is not available for replica volumes and recovery points volumes in the DPM storage pool.

You should not run Disk Defragmenter on disks that are members of the storage pool on the DPM server. Knowledge Base article 312067 explains the issue with Disk Defragmenter as follows:

"The System Shadow Copy provider uses a copy-on-write mechanism that operates at a 16-KB block level. This is independent of the file system's cluster allocation unit size. If the file system's cluster size is smaller than 16 KB, the System Shadow Copy provider cannot easily determine that disk defragmentation I/O is different from typical write I/O, and performs a copy-on-write operation. This might cause the Shadow Copy storage area to grow very quickly. If the storage area reaches its user-defined limit, the oldest shadow copies are deleted first."

Do not run chkdisk on DPM replica and recovery point volumes. Chkdsk causes the volumes to dismount, and if data is written to the replica volume while the recovery point volume is dismounted, it might cause a complete loss of recovery points.

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（二）在Dpm服务器上运行防病毒软件的注意事项

To prevent file conflicts between DPM and antivirus software, on the DPM server, disable real-time monitoring by the antivirus software of the following directories in the DPM program files:

• \XSD
• \Temp\MTA

Disable real-time monitoring of dpmra.exe on the DPM server.

Disable real-time monitoring of csc.exe on the DPM server.

Delete infected files on protected servers and the DPM server.

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（三）在Dpm服务器上安装维护Windows更新的注意事项

you should schedule or perform the updates at times that have the least impact on protection operations.

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（四）重启Dpm服务器的注意事项

• If there are no jobs currently running or scheduled to run during the time required for the restart, restart the DPM server.
• If a synchronization with consistency check job is running, restart the DPM server. Synchronization with consistency check will resume at the next scheduled time or you can retry the job manually.
• If a replica creation job is running, postpone the restart until the job is completed. If the restart cannot be postponed, you must run synchronization with consistency check manually for the replica after you restart the DPM server.
• If any synchronizations or express full backups are scheduled to run during the restart, either postpone the restart until the recovery points are created or re-run the synchronizations and create the recovery points manually after you restart the DPM server.
• If any jobs that use the tape library are running, postpone the restart until the jobs are complete. If the restart cannot be postponed, the following job types will be canceled by the restart and must be re-run after the restart:
  • Back up to tape
  • Copy to tape
  • Recovery from tape
  • Tape verification

• If you are erasing a tape, postpone the restart until the current job is complete. Cancel any pending tape erase jobs, restart the computer, and then reschedule the canceled tape erase jobs.

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（五）其他注意事项

1）You cannot change the domain of the DPM server.

2）You cannot rename a DPM server.