User's Manual

Using Dell PROPack 21
Moving of virtual machines
The PRO Tip management pack uses SCVMM algorithms to move virtual
machines from the affected system to a healthy one. The placement
requirements for identifying a healthy system and moving the virtual
machines are as follows:
• Hard requirements - these are requirements that a machine hosting
the virtual machines must meet in order to run - sufficient memory
and storage.
•
Soft requirements - these are requirements that if met by the host, allows a
virtual machine to perform more optimally - CPU allocation, network
bandwidth, network availability, disk IO bandwidth, and free memory.
SCVMM assigns a star rating to hosts in a range of zero to five. If a hard
requirement is not met (for example, not enough hard disk and memory
capacity), the host automatically gets zero stars and SCVMM does not allow
you to place a virtual machine on that host.
The system health conditions that trigger migration of virtual machines are
hardware failure alerts on a virtualization host such as virtual disk failure and
predictive drive error. Dell PROPack migrates virtual machines that have
status "Running". No other virtual machines with status like "Stop", "Pause"
and "Saved state" are migrated.
After you successfully implement the recovery task the following changes
take place:
• PRO Tip status is changed to "Resolved" and PRO Tip entry is moved out
of the PRO Tip window.
• Corresponding alert disappears in SCOM/SCE Alert View.
• An entry is displayed in the
Jobs section on the SCVMM console.
This entry shows the status of the job as "Completed", as shown in the
Figure 3-3.