回复： 【xfs_metadump xfs_mdrestore xfsdump xfsrestore】

[Stor??]

thank you.
 1.  XFS internal error XFS_WANT_CORRUPTED_GOTO at line 1676 of file fs/xfs/xfs_alloc.c.  Caller 0xffffffffa023496d
Pid: 7579, comm: smbd Tainted: G          2.6.27.19-5-default #7
 Call Trace:
 [<ffffffff8020d899>] show_trace_log_lvl+0x41/0x58
 [<ffffffff8020deff>] dump_stack+0x69/0x6f
 [<ffffffffa023308f>] xfs_free_ag_extent+0x45a/0x6bb [xfs]
 [<ffffffffa023496d>] xfs_free_extent+0xa9/0xc9 [xfs]
 [<ffffffffa023d446>] xfs_bmap_finish+0xee/0x15f [xfs]
 [<ffffffffa025d647>] xfs_itruncate_finish+0x190/0x2ba [xfs]
 [<ffffffffa027626d>] xfs_inactive+0x216/0x450 [xfs]
 [<ffffffffa0280e01>] xfs_fs_clear_inode+0xb0/0xf4 [xfs]
 [<ffffffff802bca41>] clear_inode+0x75/0xcc
 [<ffffffff802bcbb5>] generic_delete_inode+0xd6/0x14e
 [<ffffffff802b476f>] do_unlinkat+0xda/0x14d
 [<ffffffff8020befb>] system_call_fastpath+0x16/0x1b
 [<00007f6af6256b77>] 0x7f6af6256b77
 xfs_force_shutdown(dm-1,0x8) called from line 4269 of file fs/xfs/xfs_bmap.c.  Return address = 0xffffffffa023d47b
Filesystem "dm-1": Corruption of in-memory data detected.  Shutting down filesystem: dm-1
Please umount the filesystem, and rectify the problem(s)
Filesystem "dm-1": xfs_log_force: error 5 returned.
Filesystem "dm-1": xfs_log_force: error 5 returned.
Filesystem "dm-1": xfs_log_force: error 5 returned.
Filesystem "dm-1": xfs_log_force: error 5 returned.
Filesystem "dm-1": xfs_log_force: error 5 returned.
Filesystem "dm-1": xfs_log_force: error 5 returned.
Filesystem "dm-1": xfs_log_force: error 5 returned.
Filesystem "dm-1": xfs_log_force: error 5 returned.
  
 Why is this so, 

 In order to protect the data.Which command with the backup file system. xfs_dump or xfs_metadump.

 ------------------ 原始邮件 ------------------
  发件人: "Jeff Liu";<jeff.liu at oracle.com>;
 发送时间: 2013年12月17日(星期二) 下午3:25
 收件人: "Stor¾"<289471341 at qq.com>; "xfs"<xfs at oss.sgi.com>; 
 
 主题: Re: 【xfs_metadump xfs_mdrestore xfsdump xfsrestore】

 

On 12/17 2013 14:46 PM, Stor?? wrote:
> hi:
>   xfsdump and xfs_metadump difference
> xfs_mdrestore and xfsrestore difference
Please ask man page for details.

In short, xfsdump is used to perform an incremental dump of an XFS file
system.  corresponding, xfsrestore is used to restore the file system back
from the dumps.

xfs_metadump/xfs_mdrestore are used to dump/restore filesystems metadatas,
but they are used for debug purpose only.

Thanks,
-Jeff
.
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