看到lz在好几篇dd文章里面都留言了，恭喜学习新知识，进军新领域啊，哈哈

把那几个文档收集下来了，还在慢慢看当中。

还得大家多指导，dd产品不是特别熟悉。

多谢。

我把那个贴出来，很有用。

Power On and Power Off a Data Domain System

APPLIES TO

• All Data Domain systems
• All Software Releases

PURPOSE

This article provides instructions to Power On and Power Off a Data Domain System

SOLUTION

To turn on a Data Domain system:

1. Power on any expansion shelves before the controller. The ES30 powers on when plugged in. Wait approximately three minutes after all expansion shelves are turned on.

2. Push the controller’s power button (as shown in the Installation and Setup Guide for your Data Domain system). The system can be powered down only from the CLI.

3. Verify the system has come up. This can be done with the system console or from a SSH session to the Data Domain system. The system is up when you can log into the system.

To shut down power to the Data Domain system:

Use the system poweroff command. The command automatically performs an orderly shut down of DD OS processes. The command is available to administrative users only.

Caution: Do not use the chassis power switch to power off the system. Doing so will prevent the ability of the system to be remotely powered up using IPMI. Use the following command instead.

The ‘system poweroff’ command shuts down the system and turns off the power.

# system poweroff

Continue? (yes|no|?) [no]: yes

Note: The IMPI Remote System Power Down feature does not perform an orderly shutdown of the DD OS.

关于DD配置备份的，有什么文档？还是说，这个安全性已经可以保证了。

搬迁前的健康性检查。建议1、从硬件外观查看，各状态灯正常，没有闪橙色的故障报错。2、通过登陆系统查看状态。

可从红框处状态菜单进入，里面有多个菜单能查看运行状态。

可以查看类似菜单。

也可以进入这个菜单查看些信息。

都正常，那么就是健康的啦~

我感觉也是，不过学艺不精，问配置怎么备份就麻烦了，准备工作得做到位。

多谢Born指点。

Born   非常感谢，很细致。

对健康检查这块问题还不是很大。关于DATA DOMAIN这方便只是简单看了下elearning，在理解上还有些不是很明了，比如这个DDOS上面的配置存放在哪里，在做这样的搬迁的时候，是否需要去备份一下这样的配置（我感觉好像也用不着，不能跟着感觉走）。

本身DD具有自我修复文件系统，在系统安全性上应该不会有太大问题。加上•NVRAM 和RAID 6。

你说的备份配置，好像没有这样的概念。

其实它就是一个linux的系统，The /ddvar directory contains Data Domain System core and log files。如果真要备份，可以参考这段话，但我不确认linux的那些命令是否可以完整执行，毕竟它是改良过的。

这个晓得。

经常ssh登录到设备上，简单检查。哈哈。三脚猫。

哦是的，在检查没有备份数据写入，关闭系统前，先停止服务是推荐的更保险的做法。

big_leiborn_chen 给的重启步骤没错，我这里再次补充两个内容：一个是因为ddvar的信息保存，你可以在关机前收集下系统的配置信息以便以后确认；另一个是关于如何在关机前关闭DD的服务。

下面是第一部分：

Procedure

1. Record the system passphrase. After the headswap, you must reenter this passphrase.

2. Send an autosupport email message to yourself. This message records key system configuration features.

# autosupport send username@yourcompany.com

3. Configure your terminal emulation program to record the session.

4. For a system enabled with DD Extended Retention software (formerly known as Data Domain Archiver), ensure there is no data movement.

# archive data-movement status

# archive data-movement stop

5. Check if space reclamation is running, and if so, suspend it.

# archive space-reclamation status

# archive space-reclamation suspend

6. If used, record the VTL configuration:

# vtl port show summary

# vtl port show hardware

# vtl port option show

# vtl show config

# vtl option show all

7. If either VTL or DDBoost-over-FC is present, record the scsitarget configuration:

# scsitarget group show detailed

# scsitarget endpoint show detailed

# scsitarget initiator show detailed

# scsitarget transport option show all

8. Record the replication configuration:

# replication show config

9. If used, record the NFS and DD Boost configurations.

Although it should not be necessary to manually reconfigure NFS or DD Boost, it is recommended that you record those configuration settings. When you run these commands before and after the controller upgrade, the output should be the same.

# nfs show clients

# net hosts show

# net show hardware

# ddboost show user-name

# ddboost storage-unit show

# ddboost fc status

# ddboost fc dfc-server-name show

# ddboost fc group show list

10.If used, record the CIFS configuration and share definitions:

# cifs share show

# cifs show config

11.Record the file system configuration:

# disk show state

# disk status

# disk show hardware

# system show ports

# disk multipath status

# filesys show space

# enclosure show topology

# mtree retention-lock status mtree mtree-path

# filesys encryption show

# snapshot list mtree mtree-path

12.Record the file system configuration (for systems with DD Extended Retention software option):

# storage show all

# filesys archive unit list all

# archive show config

# archive data-movement policy show

13.Record external network card configuration including card slot, card vendor and model, speed, and number of ports:

# system show hardware

# system show port

# net show hardware

14.Record network services on the controller including failover, aggregation, VLANs, and IP aliases:

# net show settings

# net show config

下面是第二部分，关于停止服务：

1. For a Data Domain system with the Extended Retention software option, ensure there is no data-movement or space-reclamation running.

# archive data-movement status

# archive data-movement stop

# archive space-reclamation status

# archive space-reclamation suspend

2. Check for any active CIFS client connections and stop them. To check for CIFS activity,

enter:

# cifs show active

3. If there are active CIFS clients, disconnect them and disable CIFS by running:

# cifs disable

4. Disable VTL:

a. Determine whether VTL is enabled. To determine if VTL is enabled, enter:

# vtl status

b. If VTL is enabled, disable VTL:

# vtl disable

5. If SCSI Target is enabled (scsitarget status), disable SCSI Target:

# scsitarget disable

6. Determine whether there are NFS connections and unmount the file systems on the remote systems. To identify the remote systems that have mounted the Data Domain storage, enter:

# nfs show active

7. Use the umount command on those remote systems to dismount the NFS file systems.

8. If there are DD Boost connections, stop the backup applications on the connected systems. To identify those systems, enter:

# ddboost show connections

9. Determine whether replication is enabled, and disable replication if it is enabled.

a. To check replication status, enter:

# replication status

b. If replication is enabled, disable it. Enter:

# replication disable all

c. Verify replication is disabled on all contexts. Enter:

# replication status

Note

Do not proceed until all replication contexts are disabled. This may take up to 15 minutes.

10.Verify there is no traffic on the Ethernet NICs. Enter:

# iostat 2

Run for approximately 60 seconds before exiting.

11.A reboot is recommended. This ensures all hardware is in working order.

# system reboot

LZ牛啊，机房搬迁也接。