Date: Thu, 17 Jan 2002 11:34:24 -0500 From: Mike Galvez <mrg8n@virginia.edu> To: "W. D." <WD@US-Webmasters.com> Cc: questions@freebsd.org Subject: Re: BACKUP SOFTWARE FOR FREEBSD Message-ID: <20020117113424.D97580@mail.virginia.edu> In-Reply-To: <5.1.0.14.2.20020116222711.04524820@us-webmasters.com>; from WD@US-Webmasters.com on Wed, Jan 16, 2002 at 10:29:22PM -0600 References: <5.1.0.14.2.20020116114211.058fc3f0@us-webmasters.com> <3C4426F0.13993.6C4354@localhost> <3C4426F0.13993.6C4354@localhost> <5.1.0.14.2.20020116114211.058fc3f0@us-webmasters.com> <876662rqb5.fsf@thanatos.shenton.org> <5.1.0.14.2.20020116222711.04524820@us-webmasters.com>
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On Wed, Jan 16, 2002 at 10:29:22PM -0600, W. D. wrote:
> Hi Chris,
>
> Thanks for this! This makes it a bit more clear.
>
> I guess I'll have to read the 'man' documentation a bit. Still
> confused about dumps & cycles, etc.
>
> How about restoring files? What if I just want to restore
> a few files? A single directory?
amrestore -p /dev/nrsa0 hostname slice |restore ivbf 2 -
will put you into an interactive (restore) shell where you can select
files for backup. (man restore) From amrestore man page: Note
the use of the "b 2" option to restore, which means
read in units of 2 512-byte blocks (== 1 Kbyte) at
a time. This keeps restore from complaining about
short reads.
Test your backups. I also recommend W. Curtis Preston's book "Unix
Backup & Recovery" O'Reilly.
Mike
>
> Thanks,
>
> W. D.
>
> At 14:31 1/16/2002, Chris Shenton wrote:
> >"W. D." <WD@US-Webmasters.com> writes:
> >
> >> I too have recently come to FreeBSD. I have a HP SureStore DAT 40
> >> that I am using with WinBlows. The software setup on that OS
> >> is very straightforward.
> >>
> >> Taking a look at Amanda and some of the config files, I am completely
> >> confused. Does anyone, anywhere have a simple, understandable
> >> way to get Amanda working with FreeBSD and an HP SureStore 40 GB?
> >
> >I built it from ports with no problem. I'll attach my
> >/usr/local/etc/amanda/python/amanda.conf file if it will help.
> >
> >Getting the remote login to the systems you want to backup is a
> >little tricky; I use ".amandahosts" instead of .rhosts, but it's the
> >same issue. Huh, in this client machine's ~operator/.amandahosts I'm
> >allowing the amanda server (with the tape drive) in, it runs as
> >operator on the server, sisyphus.shenton.org:
> >
> > sisyphus.shenton.org
> >
> >The other part is getting the /etc/services and /etc/inetd.conf
> >configured, but that's easy enough. /etc/services comes with the
> >amanda ports already listed. Here's my part of the client's
> >inetd.conf:
> >
> >amanda dgram udp wait operator
> >/usr/local/libexec/amanda/amandad amandad
> >
> >
> >Here's my amanda.conf; you'll have to modify the tape parameters for
> >your tape drive:
> >
> ># $Id: amanda.conf,v 1.5 2000/02/22 13:19:19 operator Exp $
> ># If your configuration is called, say, "csd", then this file normally goes
> ># in /usr/local/etc/amanda/csd/amanda.conf.
> >
> >org "python" # your organization name for reports
> >mailto "chris" # space separated list of operators at your site
> >dumpuser "operator" # the user to run dumps under
> >
> >inparallel 4 # maximum dumpers that will run in parallel
> >netusage 1500 Kbps # maximum net bandwidth for Amanda, in KB per sec
> >
> >dumpcycle 3 days # the number of days in the normal dump cycle
> >runspercycle 3 # the number of amdump runs in dumpcycle days
> > # (4 weeks * 5 amdump runs per week -- just weekdays)
> >tapecycle 4 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
> >bumpdays 1 # minimum days at each level
> >bumpmult 4 # threshold = bumpsize * bumpmult^(level-1)
> >
> >etimeout 300 # number of seconds per filesystem for estimates.
> >
> >
> ># 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.
> >
> >runtapes 1 # number of tapes to be used in a single run of amdump
> >
> ># 1999/03/19 /usr/local/libexec chg-chio, chs, manual, mtx, multi, rth, zd-mtx
> ># 1999/03/19 In amanda src:
> ># scsi-chio (C code; won't work for FreeBSD CAM)
> ># chg-chio (Perl: reads amanda.conf: tapedev,changerdev)
> ># chg-chio had an extraneous print which confused amtape; remove it.
> >
> >tpchanger "chg-chio" # the tape-changer glue script
> >tapedev "/dev/nrsa0" # the no-rewind tape device to be used
> >changerdev "/dev/ch0"
> >
> >tapetype DDS2-120 # what kind of tape it is (see tapetypes below)
> >labelstr "^python-[0-9][0-9]*$" # label constraint regex: all tapes must match
> >
> >
> >holdingdisk hd1 {
> > comment "main holding disk"
> > directory "/home/operator/amanda/python" # where the holding disk is
> > use 600 Mb # how much space can we use: >512, multiple 64MB,128MB
> > # a negative value mean:
> > # use all space except that value
> > chunksize -1 # size of chunk if you want big dump to be
> > # dumped on multiple files on holding disks
> > # N Kb/Mb/Gb split disks in chunks of size N
> > # 0 split disks in INT_MAX/1024 Kb chunks
> > # -1 same as -INT_MAX/1024 (see below)
> > # -N Kb/Mb/Gb dont split, dump larger
> > # filesystems directly to tape
> > # (example: -2 Gb)
> > # chunksize 2 Gb
> > }
> >
> >
> >
> >infofile "/home/operator/amanda/python/curinfo" # database DIRECTORY
> >logdir "/home/operator/amanda/python/log" # log DIRECTORY
> >indexdir "/home/operator/amanda/python/index" # index DIRECTORY
> >#tapelist "/home/operator/amanda/python/tapelist" # list of used tapes
> >
> ># tapelist is stored, by default, in the directory that contains amanda.conf
> >
> >
> >###############################################################################
> ># tapetypes
> >
> >define tapetype travan4 {
> > comment "Travan4 4/8GB QIC"
> > length 4096 mbytes # 4GB native, 8GB compressed
> > filemark 100 kbytes # ??
> > speed 500 kbytes # ??
> >}
> >
> >define tapetype DDS2-120 {
> > comment "DDS2 120m"
> > length 6000 mbytes # 4GB native, 8GB compressed
> > filemark 63 kbytes # From Chris Stacey <chris@snrc.uow.edu.au>
> > speed 627 kbytes # Seen in operation <chris@shenton.org>
> >}
> >
> >
> >
> >
> >###############################################################################
> ># dumptypes
> >
> >define dumptype global {
> > comment "Global definitions"
> > index yes
> >}
> >
> >[rest of dumptypes removed, they're in the distro]
> >
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>
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--
Michael Galvez
Computer Systems Sr. Engineer Office: 434-982-2975
Financial Analysis E-Mail: mrg8n@virginia.edu
University of Virginia Messenger Mail: Carruthers Hall
"He is now rising from affluence to poverty."
-- Mark Twain
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