logredo



logredo(8)             JFS utility - replay journal log             logredo(8)




NAME

       logredo - "replay" a JFS formatted device's journal log



SYNOPSIS

       logredo device



DESCRIPTION

       logredo  applies all committed transactions recorded in the JFS journal
       log since the most recent synch point.  Its goal is to put the JFS file
       system  in the state it would have been in if all transactions had been
       applied, in order, by the JFS file system itself.

       device is the special file name corresponding to the actual  device  on
       which the journal log will be replayed (e.g.  /dev/hdb1 ).

       logredo must be run as root.



WARNING

       logredo  is  called  from within fsck.jfs, and is not recommended to be
       run as a stand-alone utility unless completely necessary, and  only  by
       advanced  users with a clear understanding of journaling in a file sys-
       tem.



BUGS

       If you find a bug in JFS or logredo,  please  report  it  via  the  bug
       tracking system ("Report Bugs" section) of the JFS project web site:
       http://oss.software.ibm.com/jfs

       Please  send  as  much pertinent information as possible, including any
       logredo error messages and the complete output of running fsck.jfs with
       the -v option on the JFS device.



SEE ALSO

       xchklog(8), xchkdmp(8), mkfs.jfs(8), fsck.jfs(8), logdump(8), xpeek(8)



AUTHORS

       Barry Arndt  (barndt@us.ibm.com)
       William Braswell, Jr.

       logredo is maintained by IBM.
       See the JFS project web site for more details:
       http://oss.software.ibm.com/jfs



                               October 10, 2001                     logredo(8)

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