Porting Drivers to ESX VMkernel
Client: Global virtualization technology provider | Solution: Optimized driver integration for ESX kernel stability
Driver integration caused instability
The OEM’s storage drivers couldn’t run reliably on VMware ESX. Kernel mismatches, I/O inefficiencies, and memory access errors caused frequent system crashes and failed certification cycles. Calsoft stepped in to rebuild and validate the driver architecture for ESX compatibility.
Solution
Calsoft reengineered the OEM drivers for VMware’s ESX VMkernel environment, ensuring stability, optimized I/O performance, and certification readiness.
- Adapted driver code to align with VMware kernel APIs
- Refactored I/O handling for higher throughput
- Optimized interrupt and memory routines
- Integrated diagnostic validation for certification
The optimized build delivered sustained reliability and reduced certification delays, improving product release efficiency.
Business Value
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