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What: /debug/aufs/si_<id>/
Date: March 2009
Contact: J. R. Okajima <hooanon05g@gmail.com>
Description:
Under /debug/aufs, a directory named si_<id> is created
per aufs mount, where <id> is a unique id generated
internally.
What: /debug/aufs/si_<id>/plink
Date: Apr 2013
Contact: J. R. Okajima <hooanon05g@gmail.com>
Description:
It has three lines and shows the information about the
pseudo-link. The first line is a single number
representing a number of buckets. The second line is a
number of pseudo-links per buckets (separated by a
blank). The last line is a single number representing a
total number of psedo-links.
When the aufs mount option 'noplink' is specified, it
will show "1\n0\n0\n".
What: /debug/aufs/si_<id>/xib
Date: March 2009
Contact: J. R. Okajima <hooanon05g@gmail.com>
Description:
It shows the consumed blocks by xib (External Inode Number
Bitmap), its block size and file size.
When the aufs mount option 'noxino' is specified, it
will be empty. About XINO files, see the aufs manual.
What: /debug/aufs/si_<id>/xi0, xi1 ... xiN and xiN-N
Date: March 2009
Contact: J. R. Okajima <hooanon05g@gmail.com>
Description:
It shows the consumed blocks by xino (External Inode Number
Translation Table), its link count, block size and file
size.
Due to the file size limit, there may exist multiple
xino files per branch. In this case, "-N" is added to
the filename and it corresponds to the index of the
internal xino array. "-0" is omitted.
When the aufs mount option 'noxino' is specified, Those
entries won't exist. About XINO files, see the aufs
manual.
What: /debug/aufs/si_<id>/xigen
Date: March 2009
Contact: J. R. Okajima <hooanon05g@gmail.com>
Description:
It shows the consumed blocks by xigen (External Inode
Generation Table), its block size and file size.
If CONFIG_AUFS_EXPORT is disabled, this entry will not
be created.
When the aufs mount option 'noxino' is specified, it
will be empty. About XINO files, see the aufs manual.
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