Help finding a Unix friendly RAID 1 backup Post: 302507700

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Special Forums Hardware Filesystems, Disks and Memory Help finding a Unix friendly RAID 1 backup Post 302507700 by c.wakeman on Thursday 24th of March 2011 01:17:08 PM

03-24-2011

Registered User

Quote:

Did you get the output of cat /proc/filesystems ?

Sorry, didn't realize in your earlier post you were asking for this as well.

Code:

$ cat /proc/filesystems
nodev   sysfs
nodev   rootfs
nodev   bdev
nodev   proc
nodev   cgroup
nodev   cpuset
nodev   debugfs
nodev   securityfs
nodev   sockfs
nodev   pipefs
nodev   anon_inodefs
nodev   tmpfs
nodev   inotifyfs
nodev   devpts
nodev   ramfs
nodev   hugetlbfs
nodev   mqueue
nodev   usbfs
        ext3
nodev   rpc_pipefs
nodev   nfsd
$

I'm not seeing XFS or NTFS...

Quote:

A) Offline backup. Turn your server off, boot some backup software, run the backup, reboot, done. It won't be able to serve files while it's backing up.

Instead I'd suggest booting a gentoo minimal liveCD. The amd64 disk is probably better if your system can boot 64-bit at all (whether your server's OS is 64-bit isn't relevant for an offline backup, just your CPU).

This will take roughly four to eight hours, I think. In the end you'll have a raw, bare-metal backup; Windows won't be able to use it, but Linux can, and if your server's hard drive dies, you could crack the drive out of your Buffalo's case and expect it to boot normally inside your server. (Assuming, of course, it has the proper connectors.)

There might even be ways to keep the /home partition on it fresh once you make it since your Linux server will still be able to talk to this disk.

B) Online backup. It won't back up the whole server, just your company's datafiles. You may be able to do this with minimal interruption to the server's clients, but, files in use may not be backed up properly.

It seems option B might be easier but (from what I can gather) has the following limitation: it only copies the datafiles, not the entire hard drive. So, with the first option, if the server hard drive fails, I could conceivably turn the external hard drive into the new server hard drive (assuming, as you say, the connections match). With the second option, if the server hard drive fails, I would need to purchase a new server hard drive, program it accordingly, and upload/unpack the .tar file onto the new hard drive. Is this correct? Do you have any preferences/suggestions for what you would do?

Thanks again!

c.wakeman

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db2bak

DB2BAK(8)						      System Manager's Manual							 DB2BAK(8)

NAME

       db2bak - Directory Server script for making a backup of the database

SYNOPSIS

       db2bak [archivedir] [-Z serverID] [-q] [-h]

DESCRIPTION

       Creates a backup of the database.  This script can be executed while the server is running or stopped.

OPTIONS

       A summary of options is included below:

       archivedir
	      The full path to the directory to store the backup.

       -Z Server Identifier
	      The server ID of the Directory Server instance.  If there is only one instance on the system, this option can be skipped.

       -q
	      Quiet mode.  Reduces output of task.

       -h
	      Display the usage.

EXAMPLE

       db2bak -Z instance2

	      Makes a backup of the entire database for 'instance2', and stores it in the default server instance backup directory.

       db2bak /LDAP/backups/20130305

	      Creates a backup of the database and stores it in specified location.

DIAGNOSTICS

       Exit status is zero if no errors occur.	Errors result in a non-zero exit status and a diagnostic message being written to standard error.

AUTHOR

       db2bak was written by the 389 Project.

REPORTING BUGS

       Report bugs to http://bugzilla.redhat.com.

COPYRIGHT

       Copyright (C) 2013 Red Hat, Inc.

								    Mar 5, 2013 							 DB2BAK(8)