13.3 Disaster Recovery
4.Define the slots that are to be available as spare slots for a server profile failover. To do this, enable the check box in the Spare column in the table for the relevant slots.
If an error occurs or maintenance work needs to be carried out, select the Fail- over function in the context menu of the affected server blade on the Server Configuration tab. In this case, VIOM searches for the slot configured as a spare slot. When it has found a suitable slot, it deletes the previous profile assignment and assigns the profile to the spare slot. The server blade installed in the spare slot therefore assumes the role of the failed server blade including the network addresses.
•The profile can only be assigned to the spare slot if the server blade in this slot is switched off (power off) (see also section "Assigning server profiles" on page 296).
•The "spare" blade only assumes the role of the failed server blade if the VIOM server profile also contains the boot settings (e.g. FC boot settings) and if the spare blade is suitable for boot- ing the same operating system as booted by the original blade. The
13.3Disaster Recovery
In a disaster recovery scenario - meaning you have two generally identical sites and if one fails you restart all or at least the most important applications on the other site - the server profile assignment feature may be used to “move the application” from one site to the other as illustrated in the following dia- grams:
ServerView | 333 |
