parchive(1) [debian man page]

PARCHIVE(1)							   User Commands						       PARCHIVE(1)

NAME

       parchive - RAID like data recovery for PAR ver 1.0 files

DESCRIPTION

       The  idea  behind  the parchive is to provide a tool to apply the data-recovery capability concepts of RAID-like systems to the posting and
       recovery of multi-part archives on Usenet. Current filespec and clients support the volumes for 'X' parity volumes present.

       The key to this mission is a clean file format specification which provides all the necessary capabilities for programs	to  easily  verify
       and regenerate single missing parts out of a set of archives.

       We might just be able to make binary posting and downloading on Usenet a little easier. That's a pretty cool goal!

       Note  that  parchive supports the old legacy version 1.0 PAR format.  For new projects, use the par2 package which supports the version 2.0
       PAR format which provides superior features.

       This manual page was written for the Debian GNU/Linux distribution because the original program does not have a manual page.

USAGE

       parchive c(heck) [options] <par file>
	      Check parity archive

       parchive r(ecover) [options] <par file>
	      Restore missing volumes

       parchive a(dd) [options] <par file> [files]
	      Add files to parity archive

       parchive m(ix) [options]
	      Try to restore from all parity files at once

       parchive i(nteractive) [<par files>]
	      Interactive mode (very bare-bones)

       Options: (Can be turned off with '+')

       -m     Move existing files out of the way

       -f     Fix faulty filenames

       -p<n>  Number of files per parity volume

       -n<n>  Number of parity volumes to create

       -d     Search for duplicate files

       -k     Keep broken files

       -s     Be smart if filenames are consistently different.

       +i     Do not add following files to parity volumes

       +c     Do not create parity volumes

       +C     Ignore case in filename comparisons

       +H     Do not check control hashes

       -v,+v  Increase or decrease verbosity

       -h,-?  Display this help

       --     Always treat following arguments as files

SEE ALSO

       The  full  documentation  (such	as  it	is)  for  parchive  is	maintained  on	the  web   site   at   <http://sourceforge.net/docman/dis-
       play_doc.php?docid=7717&group_id=30568>

AUTHOR

       This  manual  page  was written by Rene Weber <rene_debmaint@elvenlord.com>, and edited by Vince Mulhollon <vlm@debian.org>, for the Debian
       GNU/Linux system (but may be used by others).

parchive 1.1							    May 30 2004 						       PARCHIVE(1)

Check Out this Related Man Page

vxr5check(1M)															     vxr5check(1M)

NAME

       vxr5check - verify RAID-5 volume parity

SYNOPSIS

       /etc/vx/bin/vxr5check [-i | -v] [-g diskgroup] volume

DESCRIPTION

       The vxr5check utility compares the parity of each stripe of a RAID-5 volume specified by volume.  vxr5check reads the data for each stripe,
       generates the parity for this stripe, and compares this parity with the existing parity.

       vxr5check can be run against the entire RAID-5 volume, or incrementally on RAID-5 stripe boundaries, by specifying the -i option.

OPTIONS

       -g diskgroup
		 Specifies the Veritas Volume Manager (VxVM) disk group name for the RAID-5 volume name for verification.  If this option  is  not
		 specified, the default disk group is determined using the rules given in the vxdg(1M) manual page.

       -i	 Verifies the RAID-5 volume incrementally per stripes.	If a parity mismatch is found, that stripe location is displayed.

       -v	 Verbose output for the incremental vxr5check verification.  The verbose option outputs each stripe number that is being verified.

OUTPUT FORMAT

       In  verbose  mode and incremental mode, summary reports for each stripe of the RAID-5 volume are printed in output records.  If an error is
       returned for a stripe, then an error message and stripe number are displayed.  In non-verbose mode, if an error is returned, an error  mes-
       sage is displayed.

       If a parity mismatch error is determined on a stripe, vxr5check exits on that stripe and does not continue for the remaining stripes in the
       RAID-5 volume.

FILES

       /usr/lib/vxvm/bin/vxr5vrfy    The utility that vxr5check calls to perform RAID-5 parity verification operations for  the  specified  RAID-5
				     volume.

EXIT CODES

       The  vxr5check  utility exits with a non-zero status if the attempted operation fails.  A non-zero exit code is not a complete indicator of
       the problems encountered, but rather denotes the first condition that prevented further execution of the utility.

       See vxintro(1M) for a list of standard exit codes.

NOTES

       Do not run vxr5check on a volume that is in degraded mode.

SEE ALSO

       vxevac(1M), vxintro(1M), vxmend(1M), vxvol(1M)

VxVM 5.0.31.1							    24 Mar 2008 						     vxr5check(1M)

Linux and UNIX Man Pages

parchive(1) [debian man page]

Check Out this Related Man Page