amanda.conf.in

开源备份软件源码 AMANDA, the Advanced Maryland Automatic Network Disk Archiver, is a backup system that a

# amanda.conf - sample Amanda configuration file. See amanda.conf(5) for 
# details

org 	 "@DEFAULT_CONFIG@"	# your organization name for reports
mailto 	 "@CLIENT_LOGIN@"	# space separated list of operators at your site
dumpuser "@CLIENT_LOGIN@"	# the user to run dumps under

inparallel 4		# maximum dumpers that will run in parallel (max 63)
			# this maximum can be increased at compile-time,
			# modifying MAX_DUMPERS in server-src/driverio.h
dumporder "sssS"	# specify the priority order of each dumper
			#   s -> smallest size
			#   S -> biggest size
			#   t -> smallest time
			#   T -> biggest time
			#   b -> smallest bandwitdh
			#   B -> biggest bandwitdh
			# try "BTBTBTBTBTBT" if you are not holding
			# disk constrained

taperalgo first		# The algorithm used to choose which dump image to send
			# to the taper.
			# Possible values: 
		        # [first|firstfit|largest|largestfit|smallest|last]
			# Default: first. 
			# first		First in - first out.
			# firstfit 	The first dump image that will fit 
                        #               on the current tape.
			# largest 	The largest dump image.
			# largestfit 	The largest dump image that will fit 
                        #               on the current tape.
			# smallest 	The smallest dump image.
			# last 		Last in - first out.

displayunit "k"		# Possible values: "k|m|g|t"
			# Default: k. 
			# The unit used to print many numbers.
			# k=kilo, m=mega, g=giga, t=tera
			
netusage  8000 Kbps	# maximum net bandwidth for Amanda, in KB per sec

dumpcycle 4 weeks	# the number of days in the normal dump cycle
runspercycle 20         # the number of amdump runs in dumpcycle days
			# (4 weeks * 5 amdump runs per week -- just weekdays)
tapecycle 25 tapes	# the number of tapes in rotation
			# 4 weeks (dumpcycle) times 5 tapes per week (just
			# the weekdays) plus a few to handle errors that
			# need amflush and so we do not overwrite the full
			# backups performed at the beginning of the previous
			# cycle

bumpsize 20 Mb		# minimum savings (threshold) to bump level 1 -> 2
bumppercent 20		# minimum savings (threshold) to bump level 1 -> 2
bumpdays 1		# minimum days at each level
bumpmult 4		# threshold = bumpsize * bumpmult^(level-1)

etimeout 300		# number of seconds per filesystem for estimates.
dtimeout 1800		# number of idle seconds before a dump is aborted.
ctimeout 30		# maximum number of seconds that amcheck waits
			# for each client host
 
device_output_buffer_size 1280k
                        # amount of buffer space to use when writing to devices

# By default, Amanda can only track at most one run per calendar day. When
# the usetimestamps option is enabled, however, Amanda can track as many
# runs as you care to make.
# WARNING: This option is not backward-compatible. Do not enable it if you
#          intend to downgrade your server installation to Amanda community 
#          edition 2.5
usetimestamps yes

# flush-threshold-dumped, flush-threshold-scheduled, taperflush, and autoflush
# are used to control tape utilization. See the amanda.conf (5) manpage for
# details on how they work. Taping will not start until all criteria are
# satisfied. Here are some examples:
#
# You want to fill tapes completely even in the case of failed dumps, and
# don't care if some dumps are left on the holding disk after a run:
# flush-threshold-dumped	100 # (or more)
# flush-threshold-scheduled	100 # (or more)
# taperflush			100
# autoflush			yes
#
# You want to improve tape performance by waiting for a complete tape of data
# before writing anything. However, all dumps will be flushed; none will
# be left on the holding disk.
# flush-threshold-dumped	100 # (or more)
# flush-threshold-scheduled	100 # (or more)
# taperflush	0
#
# You don't want to use a new tape for every run, but want to start writing
# to tape as soon as possible:
# flush-threshold-dumped	0   # (or more)
# flush-threshold-scheduled	100 # (or more)
# taperflush	100
# autoflush     yes
# maxdumpsize   100k # amount of data to dump each run; see above.
#
# You want to keep the most recent dumps on holding disk, for faster recovery.
# Older dumps will be rotated to tape during each run.
# flush-threshold-dumped	300 # (or more)
# flush-threshold-scheduled	300 # (or more)
# taperflush	300
# autoflush     yes
#
# Defaults:
# (no restrictions; flush to tape immediately; don't flush old dumps.)
flush-threshold-dumped 0
flush-threshold-scheduled 0
taperflush 0
autoflush no

# Specify tape device and/or tape changer.  If you don't have a tape
# changer, and you don't want to use more than one tape per run of
# amdump, just comment out the definition of tpchanger.

# Some tape changers require tapedev to be defined; others will use
# their own tape device selection mechanism.  Some use a separate tape
# changer device (changerdev), others will simply ignore this
# parameter.  Some rely on a configuration file (changerfile) to
# obtain more information about tape devices, number of slots, etc;
# others just need to store some data in files, whose names will start
# with changerfile.  

# At most one changerfile entry must be defined; select the most
# appropriate one for your configuration.  If you select man-changer,
# keep the first one; if you decide not to use a tape changer, you may
# comment them all out.

runtapes 1			# number of tapes to be used in a single run of amdump
tpchanger "chg-manual"		# the tape-changer glue script
tapedev "@EXAMPLE_TAPEDEV@"	# the no-rewind tape device to be used

#changerfile "@CONFIG_DIR@/@DEFAULT_CONFIG@/changer"
#changerfile "@CONFIG_DIR@/@DEFAULT_CONFIG@/changer-status"
changerfile "@CONFIG_DIR@/@DEFAULT_CONFIG@/changer.conf"
changerdev "@DEFAULT_CHANGER_DEVICE@"

# If you want Amanda to automatically label any non-Amanda tapes it
# encounters, uncomment the line below. Note that this will ERASE any
# non-Amanda tapes you may have, and may also ERASE any near-failing tapes.
# Use with caution.
## label_new_tapes "@DEFAULT_CONFIG@-%%%"

maxdumpsize -1		# Maximum number of bytes the planner will schedule
			# for a run (default: runtapes * tape_length).
tapetype HP-DAT		# what kind of tape it is (see tapetypes below)
labelstr "^@DEFAULT_CONFIG@-[0-9][0-9]*$"	# label constraint regex: all tapes must match

amrecover_do_fsf yes		# amrecover will call amrestore with the
				# -f flag for faster positioning of the tape.
amrecover_check_label yes	# amrecover will call amrestore with the
				# -l flag to check the label.
amrecover_changer "changer"	# amrecover will use the changer if you restore
    # from this device. It could be a string like 'changer' and amrecover will use your
    # changer if you set your tape to 'changer' with 'setdevice changer' or via 
    # 'tapedev "changer"' in amanda-client.conf

# Specify holding disks.  These are used as a temporary staging area for
# dumps before they are written to tape and are recommended for most sites.
# The advantages include: tape drive is more likely to operate in streaming
# mode (which reduces tape and drive wear, reduces total dump time); multiple
# dumps can be done in parallel (which can dramatically reduce total dump time.
# The main disadvantage is that dumps on the holding disk need to be flushed
# (with amflush) to tape after an operating system crash or a tape failure.
# If no holding disks are specified then all dumps will be written directly
# to tape.  If a dump is too big to fit on the holding disk than it will be
# written directly to tape.  If more than one holding disk is specified then
# they will all be used based on activity and available space.

holdingdisk hd1 {
    comment "main holding disk"
    directory "/dumps/amanda"	# where the holding disk is
    use -100 Mb			# how much space can we use on it
				# a non-positive value means:
				# use all space but that value
    chunksize 1Gb 	# size of chunk if you want big dump to be
			# dumped on multiple files on holding disks
			#  N Kb/Mb/Gb split images in chunks of size N
			#	      The maximum value should be
			#	      (MAX_FILE_SIZE - 1Mb)
			#  0          same as INT_MAX bytes
    }
#holdingdisk hd2 {
#    directory "/dumps2/amanda"
#    use 1000 Mb
#    }
#holdingdisk hd3 {
#    directory "/mnt/disk4"
#    use 1000 Mb
#    }


# If amanda cannot find a tape on which to store backups, it will run
# as many backups as it can to the holding disks.  In order to save
# space for unattended backups, by default, amanda will only perform
# incremental backups in this case, i.e., it will reserve 100% of the
# holding disk space for the so-called degraded mode backups.
# However, if you specify a different value for the `reserve'
# parameter, amanda will not degrade backups if they will fit in the
# non-reserved portion of the holding disk.

# reserve 30 # percent
# This means save at least 30% of the holding disk space for degraded
# mode backups.  

# The format for a ColumnSpec is a ',' seperated list of triples.
# Each triple consists of
#   + the name of the column (as in ColumnNameStrings)
#   + prefix before the column
#   + the width of the column, if set to -1 it will be recalculated
#     to the maximum length of a line to print.
# Example:
# 	"Disk=1:17,HostName=1:10,OutKB=1:7"
# or
# 	"Disk=1:-1,HostName=1:10,OutKB=1:7"
#        
# You need only specify those colums that should be changed from
# the default. If nothing is specified in the configfile, the
# above compiled in values will be in effect, resulting in an
# output as it was all the time.
# The names of the colums are:
# HostName, Disk, Level, OrigKB, OutKB, Compress, DumpTime, DumpRate,
# TapeTime and TapeRate.
#							ElB, 1999-02-24.
# columnspec "Disk=1:18,HostName=0:10,OutKB=1:7"


# Amanda needs a few Mb of diskspace for the log and debug files,
# as well as a database.  This stuff can grow large, so the conf directory
# isn't usually appropriate.  Some sites use /usr/local/var and some /usr/adm.
# Create an amanda directory under there.  You need a separate infofile and
# logdir for each configuration, so create subdirectories for each conf and
# put the files there.  Specify the locations below.

# Note that, although the keyword below is infofile, it is only so for
# historic reasons, since now it is supposed to be a directory (unless
# you have selected some database format other than the `text' default)
infofile "@CONFIG_DIR@/@DEFAULT_CONFIG@/curinfo"	# database DIRECTORY
logdir   "@CONFIG_DIR@/@DEFAULT_CONFIG@"		# log directory
indexdir "@CONFIG_DIR@/@DEFAULT_CONFIG@/index"		# index directory
#tapelist "@CONFIG_DIR@/@DEFAULT_CONFIG@/tapelist"	# list of used tapes
# tapelist is stored, by default, in the directory that contains amanda.conf

# tapetypes

# Define the type of tape you use here, and use it in "tapetype"
# above.  Some typical types of tapes are included here.  The tapetype
# tells amanda how many MB will fit on the tape, how big the filemarks
# are, and how fast the tape device is.

# A filemark is the amount of wasted space every time a tape section
# ends.  If you run `make tapetype' in tape-src, you'll get a program
# that generates tapetype entries, but it is slow as hell, use it only
# if you really must and, if you do, make sure you post the data to
# the amanda mailing list, so that others can use what you found out
# by searching the archives.

# For completeness Amanda should calculate the inter-record gaps too,
# but it doesn't.  For EXABYTE and DAT tapes this is ok.  Anyone using
# 9 tracks for amanda and need IRG calculations?  Drop me a note if
# so.

# If you want amanda to print postscript paper tape labels
# add a line after the comment in the tapetype of the form
#    lbl-templ "/path/to/postscript/template/label.ps"

# if you want the label to go to a printer other than the default
# for your system, you can also add a line above for a different
# printer. (i usually add that line after the dumpuser specification)

# dumpuser "operator"     # the user to run dumps under
# printer "mypostscript"  # printer to print paper label on

# here is an example of my definition for an EXB-8500

# define tapetype EXB-8500 {
# ...
#     lbl-templ "@CONFIG_DIR@/config/lbl.exabyte.ps"
# }


define tapetype QIC-60 {
    comment "Archive Viper"
    length 60 mbytes
    filemark 100 kbytes		# don't know a better value
    speed 100 kbytes		# dito
}

define tapetype DEC-DLT2000 {
    comment "DEC Differential Digital Linear Tape 2000"
    length 15000 mbytes
    filemark 8 kbytes
    speed 1250 kbytes
}

# [e-mail]
# in amanda-users (Thu Dec 26 01:55:38 MEZ 1996)
define tapetype DLT {
    comment "DLT tape drives"
    length 20000 mbytes		# 20 Gig tapes
    filemark 2000 kbytes	# I don't know what this means
    speed 1536 kbytes		# 1.5 Mb/s
}

define tapetype SURESTORE-1200E {
    comment "HP AutoLoader"
    length 3900 mbytes
    filemark 100 kbytes
    speed 500 kbytes
}

define tapetype EXB-8500 {
    comment "Exabyte EXB-8500 drive on decent machine"
    length 4200 mbytes
    filemark 48 kbytes
    speed 474 kbytes			
}

define tapetype EXB-8200 {
    comment "Exabyte EXB-8200 drive on decent machine"
    length 2200 mbytes
    filemark 2130 kbytes
    speed 240 kbytes			
}

define tapetype HP-DAT {
    comment "DAT tape drives"
    # data provided by Rob Browning <[e-mail]>
    length 1930 mbytes
    filemark 111 kbytes
    speed 468 kbytes
}

define tapetype DAT {
    comment "DAT tape drives"
    length 1000 mbytes		# these numbers are not accurate
    filemark 100 kbytes		# but you get the idea
    speed 100 kbytes
}

define tapetype MIMSY-MEGATAPE {
    comment "Megatape (Exabyte based) drive through Emulex on Vax 8600"
    length 2200 mbytes
    filemark 2130 kbytes
    speed 170 kbytes		# limited by the Emulex bus interface, ugh
}

define tapetype SEAGATE-ULTRIUM-LTO {
     comment "SEAGATE ULTRIUM 06242 LTO, compression off"
     length 99584 mbytes
     filemark 0 kbytes
     speed 11288 kps
}

# dumptypes
#
# These are referred to by the disklist file.  The dumptype specifies
# certain parameters for dumping including:
#   auth	- authentication scheme to use between server and client.
#		  Valid values are "bsd", "krb4", "krb5" and "ssh".  
#		  Default: [auth bsd]
#   comment	- just a comment string
#   comprate	- set default compression rate.  Should be followed by one or
#		  two numbers, optionally separated by a comma.  The 1st is
#		  the full compression rate; the 2nd is the incremental rate.