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12-1
VMware HA in Action
VC ServerESX Server
Virtual Machine B
Virtual Machine C
ESX Server
Virtual Machine D
Virtual Machine A
Virtual Machine E
Virtual Machine F
ESX Server
Virtual Machine B
Virtual Machine A
Topic 2: High Availability (HA)
AAM
AAM
AAM
2
12-2
Host Isolation
SwitchESX Server
Virtual Machine B
Virtual Machine C
ESX Server
Virtual Machine D
Virtual Machine A
Virtual Machine E
Virtual Machine F
ESX Server
Virtual Machine B
Virtual Machine A
Topic 2: High Availability (HA)
AAM
AAM
AAM
• Network problems can create host isolation conditions
• VMware HA waits 15 seconds before determining host isolation– This interval is configurable in Advanced Options under HA Settings
(das.failuredetectiontime = # of milliseconds, 15000 is the default)
• Two Isolation Response Choices• Power Off VMs so new host(s) can power them on or• Leave VMs Powered (locked)
3
12-312-3
Chapter 12 Review Questions1. In VirtualCenter 2.5, HA requires which to function properly.
A. VMotion between ESX hostsB. VMkernel port configured for VMotionC. Exactly matching CPUsD. VMware Tools E. A valid license file supporting HA
2. In VMware ESX 3.5, for VMware Consolidated backup (VCB) to function properly, VMware requires that it be installed on a separate physical server running Windows Server 2003.
True False
3. Using VMware Consolidated backup (VCB) which of the following types of backups can be performed?(select all that apply)A. Windows Full Virtual Machine backupsB. Linux Full Virtual Machine backupC. Windows File backupsD. Linux File backups
4. In VMware ESX 3.5, VMware Consolidated backup (VCB) has a graphical interface
that integrates with VirtualCenter 2.5 and simplifies all your backup tasks.True False