如何从文件句柄上的数据包跟踪中查找卷 FSID 、目录 ID 、 inode 和文件名

适用于

集群模式 Data ONTAP 8

说明

本文介绍了从文件句柄上的数据包跟踪中查找卷 fsid, 目录 id, inode 和文件名的过程。

• Linux 文件句柄

Length  Bytes     Field Name     Meaning                       Typical Values

1     1         fb_version      NFS version                    Always 1

1     2      fb_auth_type    Authentication  method          Always 0

1       3         fb_fsid_type   File system ID encoding method      Always 0

1       4      fb_fileid_type  File ID encoding method               Always either 0, 1, or 2

4       5-8     xdev        Major/Minor number of exported device Major number 3 (IDE), 8 (SCSI)

4       9-12     xino        Export inode number           Almost always 2

4       13-16    ino             Inode number                          2 for /, 19 for /home/foo

4       17-20    gen_no          Generation number                     0xFF16DDF1, 0x3F6AE3C0

4       21-24    par_ino_no      Parent's inode number          2 for /, 19 for /home

8       25-32                     Padding for NFSv2                     Always 0

32      33-64             Unused by Linux 

• FreeBSD 文件句柄 

Length  Bytes  Field Name    Meaning                        Typical Values

8     1-8    fsid          File system                         ID 0x3F607F14 1C47F86E

2     9-10   fid_len       Length of the rest of the structure Always 12

2       11-12  fid_reserved  Word alignment             Always 0

4       13-16  ufid_ino      Inode Number              3, 47

4       17-20  ufid_gen      Inode Generation Number        0x0C8F960C, 0x9CFF85C7

12      21-32                Padding for NFSv2           Always 0

32      33-64                Unused by FreeBSD