The document discusses a cloud-based high availability (HA) solution utilizing IBM technologies for virtual machines (VMs) and web applications. It highlights the challenges faced during peak request periods and outlines the use of OpenStack components like Nova, Ceilometer, and Heat for VM recovery, auto-scaling, and cross-region VM group scaling. The benefits include enhanced business continuity, cost savings through on-demand provisioning, and improved resource management.

1. © 2013 IBM Corporation1
Challenge
• HA for VMs and Web applications or
services
• Requests burst during weekends and
holiday, promotion seasons
• 7x during weekends
• 30x during promotion seasons
Demo Scenario
• VM failure discovery and recovery
• Cross-region VM group scaling
1
Suning Cloud Based on IBM Technologies
OpenStack & IBM Together
• Nova to poll and notify host and VM
failure events
• Ceilometer to consolidate notifications
and signal to Heat
• Heat to orchestrate VM recovery and
auto-scaling (policy based)
Benefits
• Business continuity in case of physical
resource failures and overload
• Cost saving from on-demand resource
provisioning
Data Center A (Xuzhuang@Nanjing) Data Center (Yuhua@Nanjing)
HA HA
Cross-Region
Scaling

2. © 2013 IBM Corporation2
BACKUP

3. © 2013 IBM Corporation3
Compute host
VM/Application HA: Heat Orchestrated
Nova Server
???
ceilometer
Alarm
heat
MQnova
Cluster

Application Heartbeats

Host/VM events

A notion of VM groups for
• VM/Application redundancy
• HA policies
Native support VM and
application recovery:
• reboot / rebuild
• migrate
• remote-restart
APP

4. © 2013 IBM Corporation4
Region TwoRegion One
Cross-Region Scaling Groups
ceilometer
Alarm
Heat
nova
ScalingPolicy
 ScalingSet
ScalingSet
AutoScalingGroup AutoScalingGroup
Heat
nova
ceilometer
Alarm
 Keystone
endpointsendpoints
Nova
Server
APP
Nova
Server
APP