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Full Discussion: Why is restore slower than backup?
Operating Systems Solaris Why is restore slower than backup? Post 68915 by RTM on Friday 8th of April 2005 10:28:24 AM
Old 04-08-2005
Restores slower than backups - Part of the explaination I don't totally agree with (an assumption that there is a backup server
Quote:
Essentially, a backup is not much more that a read operation. Data is simply read from the backup client and sent to the backup server.
) Data is sometimes read and then written to the backup tape from the same server. And writing to tape could be a blockage but otherwise his points are good.
 

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LEARN ABOUT DEBIAN

backup-whatsthis

BACKUP-WHATSTHIS(1)						   Chiark-backup					       BACKUP-WHATSTHIS(1)

NAME

       backup-whatsthis - read an id off a tape and display it

SYNOPSIS

       backup-whatsthis [--list [n]]

DESCRIPTION

       `backup-whatsthis'  is a simple script to display the TAPEID of the current tape and optionally list its contents.  This script is a bit of
       a hack and may not be fully reliable.

OPTIONS

       --list [n] Print TAPEID then list archive n (default 0). Note that archives are numbered from zero.

FILES

       /etc/chiark-backup/settings.pl
	      Configuration file for the whole of chiark-backup

BUGS

       `backup-whatsthis' is currently hardwired to assume `cpio' type backups when listing; it could be trivially hardwired to assume `zafio'	or
       with slightly more effort it could be done properly :->.

AUTHOR

       This Manual page was written by Matthew Vernon <matthew@debian.org> but may be used by anyone.

COPYRIGHT

       Copyright (C) 1997-1998,2000-2001 Ian Jackson <ian@chiark.greenend.org.uk>
       Copyright (C) 1999 Peter Maydell <pmaydell@chiark.greenend.org.uk>
       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

Debian								     July 2003						       BACKUP-WHATSTHIS(1)
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