Lessons learned from multarchitecture, multinetwork OpenStack installation
summary
An OpenStack lab runs across x86 and IBM Power hardware and yields four concrete lessons: a linux-bridge crash on x86 is solved by increase ulimit for linux-bridge; AIX requires Power-specific stack so they adopt PowerVC + PowerVM to host AIX rather than vanilla KVM; nested VMs via HMC cause failures so HMCs get removed and VMs are provisioned directly; GPFS-on-GPFS shows intermittent corruption and VLAN leakage forces a painful re-IP and the move to per-project private networks and a jump host.
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chapters (8)
- 0:00Start
- 1:07Lesson story arc
- 1:48Lesson 1
- 2:51Lesson 2
- 6:28Power ISA
- 8:23Lesson 3
- 10:12Lesson Scorecard
- 11:25Lesson 4
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