Sponsored Content
Operating Systems HP-UX What is the difference between DRD and Root Mirror Disk using LVM mirror ? Post 302755769 by vbe on Monday 14th of January 2013 10:02:50 AM
Old 01-14-2013
You cannot really compare...
LVM mirroring (MirrorDisk/UX) is using permanently 2 disks, so if any of the two fail you have your system still running...
DRD, is a cloning utility letting you be ableto clone your root disk and modify the clone... you can boot from...
The diference is if your root disk fails, your system will crash... but yes you reboot on the clone after, but in mirror/UX there is no non planified downtime and if you are using hot swap disks, there is no downtime at all...
Now if you are testing updates you see the difference: in mirror/UX you cannot come to a previous situation since both disks are affected unless you brake the mirror...
This User Gave Thanks to vbe For This Post:
 

9 More Discussions You Might Find Interesting

1. Solaris

ZFS Mirror versus Hardware Mirror

I've looked a little but haven't found a solid answer, assuming there is one. What's better, hardware mirroring or ZFS mirroring? Common practice for us was to use the raid controllers on the Sun x86 servers. Now we've been using ZFS mirroring since U6. Any performance difference? Any other... (3 Replies)
Discussion started by: Lespaul20
3 Replies

2. Solaris

OBP - root / mirror disk syntax

Hi all Can someone explain to me the different syntax regarding how root / mirror disks are represented. I never truely understand the namely / device tress etc. Let me give you an example. On one my my servers, the root and mirror drives are :- A domain on a sunfire 6800 :- ... (6 Replies)
Discussion started by: sbk1972
6 Replies

3. Solaris

Mirror the root disk

Hi all I wish to mirror for the root disk, but last time i do, make the server cannot boot up. :p So this time, hope you guys can assist me on it. =) At the last code, is the step i wish to do. Please help to check and correct me if got any wrong. root@leo # format </dev/null Searching for... (17 Replies)
Discussion started by: SmartAntz
17 Replies

4. Linux

LVM - break mirror taking out orignal copy

Hi Guys, I have a mirrored LVM volume, and wish to break the mirror leaving only copy1 (effectively removing copy 0). Here's the config: # lvs -a -o +devices lvdata vg01 mwi-ao 2.19T lvdata_mlog 100.00 lvdata_mimage_0(0),lvdata_mimage_1(0) vg01... (0 Replies)
Discussion started by: badoshi
0 Replies

5. UNIX for Advanced & Expert Users

LVM mirror creation problem

I apologize is this isn't an appropriate post for the 'advanced' UNIX, so please let me know if I should post this under UNIX for dummies, but here's my problem in a nutshell: I having problems creating a mirrored logical volume. I have created two new physical volumes ... (2 Replies)
Discussion started by: simonrodan
2 Replies

6. AIX

Script Checking LVM Mirror not Working

Hi, I need to know who can I create an script in order to check server mirror in AIX. I got this script !/usr/bin/ksh # # Check if a VG is mirrored. # # lsattr -El <lvname> -a strictness -a copies # If copies=2 and scrictness=y, then VG is mirrored # # LVs are retrieved via 'lsvg -l... (5 Replies)
Discussion started by: fede_mont
5 Replies

7. HP-UX

Patch PHKL_31216 and PHCO_30698 HP-UX 11.11 for replace a LVM mirror boot disk

Hi, I have old server hp rp 3440 hp-ux 11.11. One mirrored disk is faulty. I need spesial patch PHKL_31216 and PHCO_30698, which give to correctly remove disk. Unfortunately I don't have access to hp support site. Please help me find it patch. regards,Andre (0 Replies)
Discussion started by: andre9
0 Replies

8. Linux

Centos 7.2 Convert single LVM to RAID Mirror Reinstall BootLoader

Hello, I am trying to convert a single-drive Centos 7.2 installation with LVM into a two-disk mdadm mirror with mrrored LVM. I was able to follow the excellent instructions at: http://www.dgoradia.com/creating-a-raid1-mirrored-on-an-existing-centos-on-lvm/and did create a two-disk mirror... (1 Reply)
Discussion started by: Clovis_Sangrail
1 Replies

9. Solaris

Mirror root disk - V490

Got a V490 with one existing root disk. Other disk slot was never populated. Want to ensure we've got disk mirroring. Currently vfstab mounts the physical disk - no mirroring set up. Whats best way to achieve this without losing current disk? (1 Reply)
Discussion started by: psychocandy
1 Replies
SVN::Notify::Mirror::Rsync(3pm) 			User Contributed Perl Documentation			   SVN::Notify::Mirror::Rsync(3pm)

NAME
SVN::Notify::Mirror::Rsync - Mirror a repository path via Rsync SYNOPSIS
Use svnnotify in post-commit: svnnotify --repos-path "$1" --revision "$2" --handler Mirror::Rsync --to "/path/to/local/htdocs" [--svn-binary /full/path/to/svn] --rsync-host remote_server [--rsync-delete=[yes|no]] [--rsync-dest "/path/on/remote/server"] [--rsync-args arg1 [--rsync-args arg2...]] [[--rsync-ssh] [--ssh-user remote_user] [--ssh-identity /home/user/.ssh/id_rsa]] or better yet, use SVN::Notify::Config for a more sophisticated setup: #!/usr/bin/perl -MSVN::Notify::Config=$0 --- #YAML:1.0 '': PATH: "/usr/bin:/usr/local/bin" 'path/in/repository': handler: Mirror to: "/path/to/www/htdocs" 'some/other/path/in/repository': handler: Mirror to: "/path/to/local/www/htdocs" rsync-host: "remote_host" rsync-dest: "/path/on/remote/www/htdocs" ssh-user: "remote_user" ssh-identity: "/home/user/.ssh/id_rsa" DESCRIPTION
Keep a directory in sync with a portion of a Subversion repository. Typically used to keep a development web server in sync with the changes made to the repository. This directory can either be on the same box as the repository itself, or it can be remote (via SSH connection). USAGE
Depending on whether the target is a "Local Mirror" or a Remote Mirror, there are different options available. All options are available either as a commandline option to svnnotify or as a hash key in SVN::Notify::Config (see their respective documentation for more details). Working Copy on Local host Because 'svn export' is not able to be consistently updated, the local rsync'd directory must be a full working copy. The remote server will only contain the ordinary files (no Subversion admin files). The files in the working copy must be writeable (preferrably owned) by the user identity executing the hook script (this is the user identity that is running Apache or svnserve respectively). Local Mirror Please see " SVN::Notify::Mirror " for details. Remote Mirror Used for directories not located on the same machine as the repository itself. Typically, this might be a production web server located in a DMZ, so special consideration must be paid to security concerns. In particular, the remote mirror server may not be able to directly access the repository box. o rsync-host This value is required and must be the hostname or IP address of the remote host (where the mirror directories reside). o rsync-delete The default mode of operation is to delete remote files which are not present in the local working copy. NOTE: this will delete any unversioned files in the remote directory tree. Unless you have all of your files under version control, you should pass the "--no-rsync-delete" or "--rsync-delete no" option. o rsync-dest This optional value specifies the path to update on the remote host. If you do not specify this value, the same path as passed in as the "--to" parameter will be used (this may not be what you meant to do). o rsync-args This optional parameter can be used to pass additional commandline options to the rsync command. You can use this multiple times in order to pass multiple options. The default args are "--archive --compress". See the "rsync-ssh" options for using SSH instead of RSH (rather than pass those commands via "--rsync-args" o rsync-ssh This optional parameter signals that you wish to use SSH instead of whatever the default remote shell program is configured in your copy of rsync. You may need to set one or more of the "ssh-*" parameters as well. o ssh-user If the remote user is different than the local user executing the postcommit script, you can specify it with this parameter. You would often use this in conjunction with the next parameter. o ssh-identity This value may be optional and should be the full path to the local identity file being used to authenticate with the remote host. If you are setting the ssh-user to be something other than the local user name, you will typically also have to set the ssh-identity. AUTHOR
John Peacock <jpeacock@cpan.org> COPYRIGHT
Copyright (c) 2005-2008 John Peacock This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of the license can be found in the LICENSE file included with this module. SEE ALSO
SVN::Notify, SVN::Notify::Config, SVN::Notify::Mirror perl v5.14.2 2012-07-04 SVN::Notify::Mirror::Rsync(3pm)
All times are GMT -4. The time now is 02:15 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy