Key Points
All these points have been covered in other blog posts before so these are just pointers. Please search for further information on this blog
- RDM in Physical Mode
- RDM in Virtual Mode
- Normal Virtual Disk (Non RDM)
- Type of Virtual hardware. E.g Paravirtual/Non Paravirtual
- VMware vStorage APIs for Array Integration (VAAI)
- Three virtual disk modes: Independent persistent, Independent nonpersistent, and Snapshot
- Types of Disk (Thin, Thick, Eager Zeroed)
- Partition alignment
- Consider Disk queues, HBA queues, LUN queues
- Consider hardware redundancy. E.g Multiple vkernel ports corresponding to iSCSI
- Storage I/O Control
- SAN Multipathing
- Host power management settings: Some of the power management features in newer server hardware can increase storage latency
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