Sponsored Content
Operating Systems Linux CentOS Live Server Migration? Post 302376946 by Deputy Cartman on Wednesday 2nd of December 2009 06:13:13 PM
Old 12-02-2009
CentOS Live Server Migration?

Hello, everyone. I've been lurking on this forum for a while but have never needed to post asking for a bit of help until now.

Long story short, I have a test of sorts scheduled with a prospective employer, a managed web hosting company, that involves migrating a hypothetical customer from their old server to their new server, hosted with the prospective employer. I have worked with Linux for a few years now, including at two unmanaged hosting companies for about three years, so I can handle the basics and a bit of intermediate stuff without any issue.

Unfortunately, due to my past jobs offering unmanaged hosting, we would never in a million years do something like this for a customer, so I am not familiar with how to do this. I know how to move data, users, and so forth over, basically via what is mentioned here, which we also would never do, due to learning on my own time. However, the stipulation that services on the origin server not be shut down during the migration process, which entails moving services over as well, has me scratching my head, hence my request for help or a few pointers regarding live services migration.

What I know about the impending test is that it "is a standard configuration not designed to be tricky." This is for web hosting, so I assume it will have Apache, MySQL, PHP, a mail server, and other basic web hosting services running. As far as the distro, it is either going to be CentOS, which I am most familiar with, or Gentoo. The person I was e-mailing could not remember which distro it was.

Any and all assistance regarding live server migration will be greatly appreciated, because how I perform on this test will likely determine if I remain laid off in Dallas or employed in New York City.
 

6 More Discussions You Might Find Interesting

1. AIX

Migration from OLD server to NEW one

Hi everybody, I want ask if it is possible to copy all storage structure (VGs, LVs & filesystems) from one server to another. In other words, I want to move my system from old server to new one, so I want the new server exactly have the same sizes and number of VGs, LVs, & filesystems. Thanks... (11 Replies)
Discussion started by: aldowsary
11 Replies

2. Solaris

Server Migration

Hi All We are having a very old server that is working on solaris 5.6 and oracle7. now We are planning to migrate it to a Solaris 8 and oracle 9 environment. The application software of the server is basically written in ProC and there are few sql ,perl and shell scripts on the server . We... (13 Replies)
Discussion started by: asalman.qazi
13 Replies

3. Solaris

Storage Migration on Solaris server

Hi All, I need your help urgently. Below I have given the brief description of the Architecture and the Problem. The brief details of the architecture: We have 5 Containers(Non-Global Zones) running on one T5220 Box. The Global Zone is running Solaris 10. The Non-global Zones are... (6 Replies)
Discussion started by: kamaldeep1986
6 Replies

4. UNIX and Linux Applications

Server migration from samba+ldap to windows server 2003

Hi, i have a server installed samba+openldap (pdc). Need to migration windows server 2003 (active directory) object users, computers. Where you can read how to do it? Or can tell me how to do it? Thanks. P.S. Sorry for bad english (0 Replies)
Discussion started by: ap0st0l
0 Replies

5. AIX

Server migration

Hi, Existing several p5 server with lpar (aix5.3), also implemented with hacmp. And now planning to buy new set of server (installing aix7.1)and SAN to replace the existing server. My question is, how to perform data migration from old server/SAN to new server/SAN. Suppose I install... (6 Replies)
Discussion started by: Oceanlo2013
6 Replies

6. Solaris

Server migration - using ufsdump

hi all, i am refreshing my hardware, but i do not want to do a clean installation/reinstallation. I am wondering if i could do - do a ufsdump of the / partition (into a file on a nfs share) - bootup using cdrom in the new machine - mount the boot device/slice, and restore the ufsdump on... (7 Replies)
Discussion started by: javanoob
7 Replies
lustatus(1M)						  System Administration Commands					      lustatus(1M)

NAME
lustatus - display status of boot environments SYNOPSIS
/usr/sbin/lustatus [-l error_log] [-o outfile] [BE_name] [-X] DESCRIPTION
The lustatus command is part of a suite of commands that make up the Live Upgrade feature of the Solaris operating environment. See live_upgrade(5) for a description of the Live Upgrade feature. The lustatus command displays the status information of the boot environment (BE) BE_name. If no BE is specified, the status information for all BEs on the system is displayed. The headings in the lustatus information display are described as follows: Boot Environment Name Name of the BE. Is Complete Indicates whether a BE is able to be booted. Any current activity or failure in an lucreate(1M) or luupgrade(1M) operation causes a BE to be incomplete. For example, if there is a copy operation proceeding on or scheduled for a BE, that BE is considered incomplete. Active Now Indicates whether the BE is currently active. The "active" BE is the one currently booted. Active On Reboot Indicates whether the BE becomes active upon next reboot of the system. Can Delete Indicates that no copy, compare, or upgrade operations are being performed on a BE. Also, none of that BE's file systems are currently mounted. With all of these conditions in place, the BE can be deleted. Copy Status Indicates whether the creation or repopulation of a BE is scheduled or active (that is, in progress). A status of ACTIVE, COMPARING (from lucompare(1M)), UPGRADING, or SCHEDULED prevents you performing Live Upgrade copy, rename, or upgrade operations. The following is an example lustatus display: Boot Environment Is Active Active Can Copy Name Complete Now On Reboot Delete Status -------------------- -------- ------ --------- ------ ---------- disk_a_S7 yes yes yes no - disk_b_S7db yes no no no UPGRADING disk_b_S8 no no no no - S9testbed yes no no yes - Note that you could not perform copy, rename, or upgrade operations on disk_b_S8, because it is not complete, nor on disk_b_S7db, because a Live Upgrade operation is pending. The lustatus command requires root privileges. OPTIONS
The lustatus command has the following options: -l error_log Error and status messages are sent to error_log, in addition to where they are sent in your current environment. -o outfile All command output is sent to outfile, in addition to where it is sent in your current environment. -X Enable XML output. Characteristics of XML are defined in DTD, in /usr/share/lib/xml/dtd/lu_cli.dtd.<num>, where <num> is the version number of the DTD file. OPERANDS
BE_name Name of the BE for which to obtain status. If BE_name is omitted, lustatus displays status for all BEs in the system. EXIT STATUS
The following exit values are returned: 0 Successful completion. >0 An error occurred. FILES
/etc/lutab list of BEs on the system /usr/share/lib/xml/dtd/lu_cli.dtd.<num> Live Upgrade DTD (see -X option) ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWluu | +-----------------------------+-----------------------------+ SEE ALSO
lu(1M), luactivate(1M), lucancel(1M), lucompare(1M), lucreate(1M), lucurr(1M), ludesc(1M), ludelete(1M), lufslist(1M), lumake(1M), lumount(1M), lurename(1M), luupgrade(1M), lutab(4), attributes(5), live_upgrade(5) SunOS 5.10 23 Apr 2003 lustatus(1M)
All times are GMT -4. The time now is 03:38 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy