Thursday Jan 15, 2015

Proxy Controller Backups

There were a number of new features introduced in Ops Center 12.2.2. One of the shiny ones is an expansion of the backup and recovery capabilities to include Proxy Controllers.

It's always been possible to create a backup of the Enterprise Controller and the co-located Proxy Controller using the ecadm backup command. Now, in version 12.2.2, there's a similar command - proxyadm backup - to create a backup of a Proxy Controller, including all of its asset data. You can save off this file and use it to restore the Proxy Controller to its backed-up state.

The only trick with OC backups is that the OS images directory isn't part of the backup file for size reasons, but they can be backed up separately.

The Backup and Recovery chapter of the Administration guide explains how to back up your Proxy Controllers and Enterprise Controller, and the What's New goes over many of the other new features in 12.2.2.

Thursday Nov 20, 2014

Restoring an Enterprise Controller on a new system

An Ops Center user was recently planning a deployment, and they were wondering about disaster recovery. Apart from Ops Center's High Availability option, they asked, what recovery options are available if an EC system completely dies?

One other option that you can use is Ops Center's backup and restore capability. If you've made a backup of your Enterprise Controller, it's possible to restore that Enterprise Controller on a new system. There are a few tricks with doing so, though:

  • The new system has to have the same version of Ops Center, including all upgrades and IDRs.
  • If the IP address of the new system is different, you have to manually change the Proxy Controllers to point to the new IP.
  • Ops Center libraries are not part of the backup, so if they're on nfs storage, they need to be accessible to the new system as well.
  • The /var/opt/sun/xvm/images/os directory, containing OS images, needs to be backed up and restored separately, because it's big.

The Backup and Restore chapter explains how to restore the Enterprise Controller on a new system.

Thursday Sep 12, 2013

Backup and Restore issue

I got a question about the backup and restore process for the Enterprise Controller:

"I upgraded my Enterprise Controller from 12.1.3 to 12.1.4 a while back, but I haven't run the 'ecadm backup' command since then. So the only backups I have are from before the upgrade and the automatic one made during the upgrade.

"Well, we just had a crash on our EC system. However, when I try to restore from either of those two backups, it fails, and says that it's looking for the 12.1.3 packages. How do I get this system back up?"

So, in order to restore from a backup file, the Enterprise Controller version needs to be identical. So, the backup from before the upgrade expects 12.1.3, and so does the backup made during the upgrade. (The automatic backup is only made so that, if the upgrade fails, we can roll back to the prior version.)

In this case, you'd have to uninstall 12.1.4, then reinstall 12.1.3, and finally restore from your backup file. The Backup and Recovery chapter explains this process and the requirements.

It's a good general practice to do regular backups so that a system failure doesn't cost you much data, and we also recommend doing a backup after completing an upgrade.

About

This blog discusses issues encountered in Ops Center and highlights the ways in which the documentation can help you

Search

Archives
« August 2015
SunMonTueWedThuFriSat
      
1
2
3
4
5
7
8
9
10
11
12
14
15
16
17
18
19
21
22
23
24
25
26
28
29
30
31
     
Today