NBU備份OS時會skipping掉一些文件，請問原則是什么？坐等

me525kai

NBU備份OS時，job detail中會skipping掉一些文件，請問哪位大俠知道skipping的原則是什么？哪種類型的文件會備份skipping掉？原理又是什么？非常感謝，坐等。。

無牙

一般是系統(tǒng)保護文件。需要通過system_Status備份。

me525kai

我備份OS的時候發(fā)現(xiàn)job detail中報類似：[/home] is in a different file system from [/]. Skipping。。但是備份完成后查看發(fā)現(xiàn)/home是備了的，但是有一些也是類似這樣被skipping，就真的沒有備份了。
疑問1：job detail中報/home 和/ 不同file system。是什么意思？因為我在/etc/fstab中看到/home和/都是reiserfs啊。
疑問2：還有一些被報是由于is a socket special file. Skipping，這又是什么東東。

請大俠講解原理��？

無牙

你的問題是選項不對導致的。應該將cross mount的屬性選中。

me525kai

你的問題是選項不對導致的。應該將cross mount的屬性選中。
無牙 發(fā)表于 2011-09-22 20:30

但是NBU的手冊里有句話：這個如何理解呢？無牙師兄。
注意：請勿在 UNIX 系統(tǒng)上的在備份選擇列表中使用 ALL_LOCAL_DRIVES 指令的策
略中使用“跨裝入點”屬性。

cbsincool

關注中

無牙

但是NBU的手冊里有句話：這個如何理解呢？無牙師兄。
注意：請勿在 UNIX 系統(tǒng)上的在備份選擇列表中 ...
me525kai 發(fā)表于 2011-09-28 10:56

    上面那個人的錯誤明顯是沒有選擇all_local_driver, 而是寫的/.

me525kai

skipping原則找到了，給大家分享：

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

原始資料：
      http://www.symantec.com/business ... nt&id=TECH52350