时间机器 问题

Backup Is Slow

备份十分慢

There are a few conditions in which your backup may be slow:

有以下几种情况照成了备份很慢

● First-time backup

第一次备份

● First backup after a software update or changing a large amount of data

在一次软件升级或者改动了大量数据后的第一次备份

● A long time since the last backup

上次备份后，很长时间没备份了

To speed up your backup, try to minimize other computer processes:

加快备份速度，关闭其他不必要的程序

● Don't back up during any of these processor-intensive activities:

别再备份的时候做以下几种事情

􀀀m Disc burning

刻录文件

􀀀m Movie rendering

视频编辑

􀀀m Spotlight indexing

搜索索引

● Quit unused applications to free up memory, or install more memory in the computer.

推出不常使用的应用程序，以释放内存，或者在你的电脑上安装更多的内存

● Verify the source and destination disks with Disk Utility.

用磁盘工具验证源和目的盘（需要备份的磁盘）

● Use a different drive cable if you get I/O errors in the system.log.

如果你出现I/O错误，请更换传输电缆

● If your drive supports multiple interfaces, try a different one.

如果你的驱动器支持多种接口，请尝试更换接口

● Try backing up without a USB or FireWire hub.

在备份时不要用usb或者火线集线器

● For network backups, pick a time when the network is less busy.

对于网络备份时，请挑选网络不是很繁忙的时候

● Use wired networks instead of wireless.

使用有线网络代替无线网络。

Backup Disk Is Full

备份盘已满

Time Machine won't start if your disk is full. You have already learned that Time Machine works behind the scenes to "thin" your backups to keep them from being too large. You can also try to:

如果你的备份盘满了，时间机器将不能再启动。你已经虚席了时间机器的工作原理，时间机器不断的备份细小部分已使它变得巨大。但是你可以尝试以下情况：

● Exclude more files from your backup

从你的备份中排除更多的文件

● Delete large files from your backups

从你的备份中删除大文件

● Remove non-Time Machine files from your backup drive

从你的备份盘中删除非时间机器文件

● Purchase a larger backup drive

购买一个大容量硬盘用来备份

Backup Is Interrupted

备份被中断

Because Time Machine stores its backups somewhere other than your startup volume, the communication can be interrupted during a backup. Here are some scenarios and their results:

因为时间机器会在除了你的启动卷以外的某处存储备份文件，传输可能会被中断。以下有许多案例

● Your network connection is lost during a Time Machine backup to a network volume. It might take up to 2-3 minutes for the computer to notice that the network has disconnected, but the Finder will likely show an error that the connection to the network drive was lost:

用时间机器进行网络备份的时候你的网络被断开。注意这种情况可能占据2到3分钟的时间，但是Finder将可能展示一个于网络磁盘中断的错误。

Time Machine may show a separate error:

时间机器可能展示一个断开错误：

Errors may vary somewhat depending on the nature of the failure. With either of these errors, the Time Machine preference pane should show "Failed" for the latest backup. Click the Info icon for further information about the failure. Time Machine continues the backup when the network connection re-establishes.

错误可能是外界环境出现变化照成的。这些所发生的错误，在时间机器预置中肯定会在最近的备份中出现失败的提示，点击信息按钮将出现失败的信息。当网络重新连接上后，时间机器将继续备份。

● If the locally connected drive is accidentally disconnected during a Time Machine backup, you get the following error:

在时间机器备份的时候，如果本地连接的硬盘发生断开的状况。你会得到下列错误：

The backup itself then fails with the following error:

备份工具紧接着会弹出错误：

As with network backup interruptions, the error messages may vary. Be sure to record the error messages in your notes. Time Machine resumes when the drive reconnects.

关于网络备份中断，这种错误情况可能不同。可以确定的是错误信息已经记录到你的日志中。当硬盘重新连接上时间机器将继续开始备份

● You close your portable and put it in sleep mode while Time Machine performs the backup. There is no error and Time Machine resumes when you take the unit out of sleep mode.

当时间机器在备份的时候让笔记本进入睡眠状态。将不会发生错误，当你恢复，时间机器将继续备份

● You put your computer to sleep or shut it down while Time Machine performs the backup. Time Machine stops the backup and resumes when you turn the machine back on or take it out of sleep mode.

当时间机器在备份的时候 ，你把你的电脑进入睡眠或者关闭。时间机器将停止备份，并且当你正常启动的时候，备份工作将继续。

● You unmount the external drive while Time Machine backs up to it. Time Machine stops the backup and the drive unmounts. It may take several seconds longer than usual to unmount. Time Machine resumes the backup when you reconnect the drive.

当时间机器在备份的时候，你卸载了外置硬盘。时间机器将停止备份。在卸载的时候，可能要花费几秒或者更长的时间。当外置硬盘重连接上后，时间机器将继续备份。

Can't Find Item to Restore

不能找到需要恢复的文件

If you can't find an item to restore, it might not have been backed up yet. There's no way to overcome this, but make sure that Time Machine is on and the drive is recognized in the Time Machine preference pane.

如果你不能够找到你所需要的恢复文件，可能是没有备份它。这种情况是难以克服的，但是必须确定时间机器已经打开并且驱动器已经重新连接上

Time Machine also deletes backups after they're too old. If you delete a file and forget you deleted it until Time Machine deletes the last backup that contains it, then the file is gone from your backup as well.

如果你需要找的文件非常久远，时间机器可能把它给删除了。如果你删除了一个文件，并且直到时间机器在要删除它以前，你忘记删除了它。则，这文件将永远找不回来了。

You can also browse your Time Machine backups in the Finder. You can copy things from there, but don't try to use the Finder to add items to or delete items from a Time Machine backup. You can use Spotlight to search your Time Machine backups in the Finder.

你能用finder浏览时间机器的备份。你从这里复制任何文件，但是不能用finder从时间机器备份增加文件或者删除文件。你能使用spotlight在finder里搜索你的时间机器备份。

Can't Find Backup Drive

不能找到备份盘

You already learned that Time Machine requires volumes of a certain format and does not show some storage devices like iPod or iDisk.

你已经学习了时间机器需要某种格式的磁盘和不能使用像ipod或者idisk这样的存储设备。

If you set up Time Machine with a drive, but Time Machine then loses track of that drive during a backup, you see an error that the storage location can't be found:

如果你为时间机器设置好一个驱动器，但是时间机器在备份的时候突然与这驱动器断开了，你会看到一个错误信息。存储器不能被发现：

This can happen if you accidentally disconnect your drive cable or if a network outage occurs during a network backup.

如果你突然断开你的驱动器的线缆或者如果在网络备份的时候，一个网络断电了

When either of these situations happens between backups, the Time Machine preference pane shows the drive name in gray with a generic internal hard drive icon and indicates that the next backup occurs "when disk is connected":

当在备份的时候，这些情况任一个发生，时间机器预置面板展示驱动器的名字将会变成灰色，并会提示下次备份发生：“磁盘已经断开”：

Read or Write Errors (I/O Errors) Copying Files to and from Drives

A read or write error happens when the drive tells the computer that not all information successfully copied. Occasional read or write errorsare acceptable; frequent errors may indicate a drive that is about to fail, even if the SMART status of the drive reads "Verified."

当电脑告诉你不是所有的文件都已经成功复制，这可能是读写错误发生了。偶然的读写错误是可接受的；频繁的错误是指出驱动器出现问题。即使 smart已经验证过

A bad cable or a bad external hard drive enclosure can cause read or write errors, also called I/O errors. You can see I/O errors in the system.log file.

一个坏的线缆或者外置硬盘能促使读写错误，也叫I/O错误。你能在system.Log里看到I/O错误。

File or Directory Damage

文件或者目录被毁坏

If the source volume has a damaged file on your source volume, then the backup is likely damaged as well, unless the damage happened after the file was backed up. Directory damage can cause file damage. Disk Utility's "Repair Disk" verifies and repairs directory damage; however, repairing the directory does not repair previously damaged files.

如果源磁盘有文件被损害，则你备份后的文件也是损坏的文件，除非你备份以后，毁坏才发生。目录破坏能促使文件损坏。磁盘工具能够修复目录损坏；但是能修复好目录，不能修复好被破坏的文件。

NOTE: For a large Time Machine volume, it can take multiple hours to verify or repair a disk's directory.

对于一个时间机器的磁盘，需要花费数个小时验证或者修复磁盘目录

Star Animation Is Slow

The animation's appearance on computers that have built-in Intel graphics or older, slower graphics cards with low video RAM (VRAM) may be slow or irregular. Adding more RAM to the system might help.

显卡问题

Limitations with FileVault Home Directories

Time Machine only backs up the home directory of a FileVault user while that user is logged out.

当用户被注销的时候，时间机器只备份用filevault加密home目录