Difference between revisions of "Man/vzfsync.8"
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Latest revision as of 05:32, 4 April 2014
NAME[edit]
vzfsync − perform fsync/fdatasync/fadvise on files
SYNOPSIS[edit]
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vzfsync |
{ -s,--sync | -d,--datasync } [-n,--dontneed] file [file ...] | ||
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vzfsync |
--help |
DESCRIPTION[edit]
This utility performs fsync(2) or fdatasync(2) for every supplied file name. It can also optionally perform posix_fadvise(2) with the argument of POSIX_FADV_DONTNEED.
It is used from within vzmigrate(8) utility for live migration, right after copying ploop delta files (and before suspending a container) to sync those copied files to disk in order to optimize subsequent ploop mount time and, utlimately, container frozen time.
OPTIONS[edit]
-s,--sync
Perform fsync.
-d,--datasync
Perform fdatasync.
-n,--dontneed
Perform posix_fadvise(POSIX_FADV_DONTNEED).
EXIT STATUS[edit]
Returns 0 upon success, or an appropriate error code in case of an error:
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1 |
Invalid usage | ||
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2 |
Failed to perform some requested operations on one or many files. |
SEE ALSO[edit]
fsync(2), fdatasync(2), posix_fadvise(2).
LICENSE[edit]
Copyright (C) 2014, Parallels, Inc. Licensed under GNU GPL v2.
