[Webinar] Streamline your web hosting managementRegister Today

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 286
  • Last Modified:

What is the best way to keep the OS on two RHEL 4 servers synchronized?

What is the best way to keep the OS on  two RHEL 4 servers synchronized?
0
tcsadmin
Asked:
tcsadmin
  • 2
1 Solution
 
joolsCommented:
Clustering???

If you use rsync, as suggested my omar, you will need to make sure that both systems are fairly identical, for example, you cant rsync fstab files if the two systems have different configurations, likewise modules for raid cards etc. It's doable but will need a certain amount of planning.
0
 
tcsadminAuthor Commented:
jools,

No clustering here.  I have two identical blades and want to use the 2nd one as a warm standby.  I just want to make sure that when/if the day comes that I need to failover to the standby that it's entire OS is as identical as possible as the primary.  

In this case, do most people just use rsync to keep a defined list of files/dirs synchronized OR do they rsync every single OS mount point?  ( /, /var, /opt, etc)

tcsadmin
0
 
joolsCommented:
I believe most people rsync their data.

If the systems are truely identical you could have a go at doing the OS though you will need to bear in mind that some files will be in use and it may fail.

The the systems differ in any was as mentioned above you may end up with a system that will not boot and will have to be rescued.

I have to say I've never done it but may give it a go to see what happens myself.
0

Featured Post

Hire Technology Freelancers with Gigs

Work with freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely, and get projects done right.

  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now