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UNIX for Dummies Questions & Answers
Best practises for backing up
Post 77183 by d11wtq on Tuesday 5th of July 2005 02:37:33 PM
07-05-2005
Best practises for backing up
Hi,
I'm about to start a regular backup schedule for my Linux system.
I need some pointers if I may
The system is *mainly* used as a personal home computer (it's actually a laptop running SuSE 9.2) although I do host some client material from it being a PHP developer.
I know that in an *ideal* situation I should have /home on a separate disk but being a laptop this isn't true in my case.
So what I basically have, is a laptop which is pretty much running 24/7, with a 30GB hard drive and a fair few user accounts on it.
Because *most* of the stuff isn't business critical I feel that a once weekly backup will suffice. I want to backup EVERYTHING, not just /home for example. The idea being, if my single hard disk fails (and being Dell I almost know it will at some point - I work with these things in my job all the time) I can restore the whole system from the most recent backup without all the hassle of doing a full system reinstall and then restoring /home.
Problems/Questions:
I don't have enough space on the HDD to duplicate everything (I have about 8GB free) during the backup process.
Do I make tar files before copying to another media or simply copy the files?
I only have a CD-R drive to backup too, whats the best way to handle this?
Important: Can I do this while the system is runnning X Desktop or do i need it to be read from a Live CD?
I'm basically looking for advice on doing a FULL weekly backup onto separate CD's. Thanks,
d11
I'm about to start a regular backup schedule for my Linux system.
I need some pointers if I may
The system is *mainly* used as a personal home computer (it's actually a laptop running SuSE 9.2) although I do host some client material from it being a PHP developer.
I know that in an *ideal* situation I should have /home on a separate disk but being a laptop this isn't true in my case.
So what I basically have, is a laptop which is pretty much running 24/7, with a 30GB hard drive and a fair few user accounts on it.
Because *most* of the stuff isn't business critical I feel that a once weekly backup will suffice. I want to backup EVERYTHING, not just /home for example. The idea being, if my single hard disk fails (and being Dell I almost know it will at some point - I work with these things in my job all the time) I can restore the whole system from the most recent backup without all the hassle of doing a full system reinstall and then restoring /home.
Problems/Questions:
I don't have enough space on the HDD to duplicate everything (I have about 8GB free) during the backup process.
Do I make tar files before copying to another media or simply copy the files?
I only have a CD-R drive to backup too, whats the best way to handle this?
Important: Can I do this while the system is runnning X Desktop or do i need it to be read from a Live CD?
I'm basically looking for advice on doing a FULL weekly backup onto separate CD's. Thanks,
d11
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LEARN ABOUT OPENSOLARIS
vgcfgrestore
VGCFGRESTORE(8) System Manager's Manual VGCFGRESTORE(8) NAME
vgcfgrestore - restore volume group descriptor area SYNOPSIS
vgcfgrestore [-d|--debug] [-f|--file filename] [-l[l]|--list] [-h|--help] [-M|--Metadatatype1|2] [-t|--test] [-v|--verbose] VolumeGroupName DESCRIPTION
vgcfgrestore allows you to restore the metadata of VolumeGroupName from a text backup file produced by vgcfgbackup. You can specify a backup file with --file. If no backup file is specified, the most recent one is used. Use --list for a list of the available backup and archive files of VolumeGroupName. OPTIONS
-l | --list -- List files pertaining to VolumeGroupName List metadata backup and archive files pertaining to VolumeGroupName. May be used with the -f option. Does not restore Vol- umeGroupName. -f | --file filename -- Name of LVM metadata backup file Specifies a metadata backup or archive file to be used for restoring VolumeGroupName. Often this file has been created with vgcfg- backup. See lvm for common options. REPLACING PHYSICAL VOLUMES
vgdisplay --partial --verbose will show you the UUIDs and sizes of any PVs that are no longer present. If a PV in the VG is lost and you wish to substitute another of the same size, use pvcreate --restorefile filename --uuid uuid (plus additional arguments as appropriate) to initialise it with the same UUID as the missing PV. Repeat for all other missing PVs in the VG. Then use vgcfgrestore --file filename to restore the volume group's metadata. SEE ALSO
lvm(8), vgcreate(8) Sistina Software UK LVM TOOLS 2.02.95(2) (2012-03-06) VGCFGRESTORE(8)