Dell S300, S100 manual Description

Table 3-1. Features of the PERC S100 controller and PERC S300 controller (continued)

RAID Controller Feature	Description
Boot support for RAID	Allows boot support for Volume, RAID 0, RAID 1, RAID 5,
levels	and RAID 10.
Boot support for	Enables the system to boot from degraded redundant virtual
degraded virtual disks	disks (RAID 1, RAID 5, or RAID 10).
Cache support for	Supports these cache options: None, Read Only, Read/Write.
virtual disks	The PERC S100 adapter or PERC S300 adapter uses part of
	system memory for cache.
Checkpointing	Allows different types of checkpointing (background
	initialization, consistency check, and rebuild) to resume at
	the last point following a restart.
	After the system restarts, background checkpointing resumes
	at its most-recent checkpoint.
Command queuing	Command queuing is a command protocol used by SATA
	and SAS physical disks that is supported by the PERC S100
	adapter and PERC S300 adapter.
	Command queuing allows the host to issue multiple
	input/output requests to a disk simultaneously. The disk can
	then decide in which order to process the commands to
	achieve maximum performance.
	The SATA and SAS versions of command queuing have
	slightly different protocols and means of handling multiple
	traffic requests at the same time, but the end-purposes are
	comparable.

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Features