What is the maximum number of virtual SCSI targets that can be configured for a virtual SCSI adapter using a PVSCSI driver?

The maximum number of virtual SCSI targets that can be configured for a virtual SCSI adapter using the Paravirtual SCSI (PVSCSI) driver is indeed 64. This limit applies to each PVSCSI adapter in a virtual machine, allowing for efficient handling of storage connectivity, especially in environments with high I/O demands.

The PVSCSI driver is specifically designed for high-performance storage applications, such as those using VMware vSAN or other storage solutions that require optimized throughput and reduced overhead. The architecture of the PVSCSI adapter allows each virtual machine to communicate with a maximum of 64 SCSI targets, thereby enabling the connection of multiple virtual disks or other storage devices without compromising performance.

Understanding this limitation is crucial for architects and administrators when designing storage configurations, as it informs decisions regarding the number of virtual disks or storage resources that can be effectively managed by a single virtual machine. It also exemplifies the importance of selecting the appropriate virtual SCSI adapter and driver based on the workload requirements in vSphere environments.