NBU备份OS时会skipping掉一些文件，请问原则是什么？坐等

me525kai

NBU备份OS时，job detail中会skipping掉一些文件，请问哪位大侠知道skipping的原则是什么？哪种类型的文件会备份skipping掉？原理又是什么？非常感谢，坐等。。

无牙

一般是系统保护文件。需要通过system_Status备份。

me525kai

我备份OS的时候发现job detail中报类似：[/home] is in a different file system from [/]. Skipping。。但是备份完成后查看发现/home是备了的，但是有一些也是类似这样被skipping，就真的没有备份了。
疑问1：job detail中报/home 和/ 不同file system。是什么意思？因为我在/etc/fstab中看到/home和/都是reiserfs啊。
疑问2：还有一些被报是由于is a socket special file. Skipping，这又是什么东东。

请大侠讲解原理啊？

无牙

你的问题是选项不对导致的。应该将cross mount的属性选中。

me525kai

你的问题是选项不对导致的。应该将cross mount的属性选中。
无牙 发表于 2011-09-22 20:30

但是NBU的手册里有句话：这个如何理解呢？无牙师兄。
注意：请勿在 UNIX 系统上的在备份选择列表中使用 ALL_LOCAL_DRIVES 指令的策
略中使用“跨装入点”属性。

cbsincool

关注中

无牙

但是NBU的手册里有句话：这个如何理解呢？无牙师兄。
注意：请勿在 UNIX 系统上的在备份选择列表中 ...
me525kai 发表于 2011-09-28 10:56

    上面那个人的错误明显是没有选择all_local_driver, 而是写的/.

me525kai

skipping原则找到了，给大家分享：

What files will NetBackup automatically exclude during backup?

Solution

Question/Issue:
·          There are several files/paths NetBackup will not backup by default
·          ALL_LOCAL_DRIVES will exclude some files
·          Using / in backup selections will not back up some files
Symptoms:
·          Unable to locate certain files for restore
·          Full restore of client operating system may not include all expected files
·          Solaris 10 client will not boot after full restore from global zone backup completed
Conditions:

A NetBackup file system backup of a client will automatically skip certain files.

Cause:

Some operating system files either cannot be backed up or have little value if backed up.  Other configuration options intentionally exclude certain files to avoid redundant backup.

Answer/Resolution:

By default, NetBackup does not back up the following file or file types:
·        NFS files or directories, unless you set Follow NFS. These files are likely backed up by the home host.
·        Files or directories in a different file system if you do not set Cross Mount Points or include those mount points in
·        Files or directories with path lengths longer than 1023 characters.
·        Files or directories where the operating system does not return inode information (the lstat system call failed).
·        Directories that NetBackup cannot access (cannot use the cd command to access).
·        On a disk managed by Storage Migrator, migrated files or directories where Storage Migrator does not return inode information (mig_stat fails). Note that NetBackup Server does not support Storage Migrator.
·        Socket special files (named pipes are backed up).
·        Door files
·        Locked files when mandatory locking is enabled by an application that currently has the file open.
·        Busy files. If a file is open, NetBackup backs up the last saved version of the file.
NetBackup automatically excludes the following file system types on most platforms:
·        cdrom (all UNIX/Linux platforms)
·        cachefs (AIX, Solaris, SGI, UnixWare)
·        devpts (Linux)
·        mntfs (Solaris)
·        proc (UNIX/Linux platforms; does not exclude automatically for AIX, so /proc must be added manually to exclude list. If not added manually, partially successful backups may result when using the ALL_LOCAL_DRIVES directive on AIX)
·        tmpfs (Linux)
·        usbdevfs

原始资料：
      http://www.symantec.com/business ... nt&id=TECH52350