General Controller Settings

Appendix C: Using the Adaptec RAID Configuration Utility ● 111

Note: Default settings are shown in bold type.

Option	Description
Drive’s Write Cache	When set to Enable All, write cache is enabled on all disk drives on the
	controller. (Enabling the write cache overrides any individual drive
	settings in Adaptec Storage Manager.) When set to Disable All, write
	cache is not used on the disk drives. When set to Drive Specific, write
	cache is enabled/disabled on a per-drive basis in Adaptec Storage
	Manager.
	Caution—When write cache is enabled, there is a slight possibility of
	data loss or corruption during a power failure.
Runtime BIOS	When enabled, the controller BIOS allows the controller to act as a
	bootable device. Disabling the BIOS allows another controller to act as a
	bootable device.
Automatic Failover	When enabled, the controller automatically rebuilds an array when a
	failed disk drive is replaced. When disabled, the array must be rebuilt
	manually.
Array Background	When enabled, the controller constantly verifies a redundant array. Note
Consistency Check	that there may be a significant performance reduction. Default is
	disabled.
Array-based BBS	When enabled in systems that support BBS, the controller presents
Support	attached bootable devices up to the BIOS for boot device selection. This
	is relevant for logical arrays. Default is disabled.
SATA Native Command	When enabled, NCQ is enabled. Disable this feature if you want to
Queuing (NCQ)	attach more than 48 SATA II disk drives. Only available with SATA II disk
	drives.
Physical Drives Display	When enabled, connected disk drives are displayed during system Power
During POST	On Self Test (POST). Displaying the disk drives adds a few seconds to
	the overall POST time. Default is disabled.
DVD/CD-ROM Boot	When enabled, the system can be booted from a bootable DVD/CD.
Support	(This setting is not available on all RAID controller models.)
Removable Media	When enabled, removable media devices, such as CD drives, are
Devices Boot Support	supported. (This setting is not available on all RAID controller models.)
Alarm Control	When enabled, the alarm sounds. Default is enabled.
	Note—When the alarm is turned off (disabled), it will remain off after a
	reboot.
Default Background	Sets the default priority for background tasks on the controller (such as
Task Priority	logical drive creation) to High, Medium, or Low. Default is Medium.
	Note—This setting applies to new tasks. It does not affect currently
	running tasks.
LED Indication Mode	When set to Activity and Fault, the drive activity LEDs blink to indicate
	I/O activity (randomly depending on I/O load) and fault (steady 1Hz).
	When set to Fault Only, the drive activity LEDs blink to indicate fault
	state only. For Series 2 and Series 5 controllers, default is Activity and
	Fault. For Series 6/6E controllers, default is Fault Only.

2268300R specifications

The Adaptec 2268300R is a robust and versatile RAID controller designed for enterprise-level storage needs. Ideal for environments demanding high availability, performance, and data protection, this controller provides organizations with the ability to manage large volumes of data while ensuring reliability.

One of the standout features of the Adaptec 2268300R is its support for various RAID levels, including RAID 0, 1, 5, 6, 10, 50, and 60. This flexibility allows users to choose the configuration that best suits their performance and redundancy requirements. By combining multiple drives into a single logical unit, the controller enhances data throughput and ensures data safety through redundancy.

The controller is built on a SATA and SAS architecture, allowing it to connect directly to both SATA and SAS drives. This broad compatibility is crucial for businesses looking to leverage existing hardware while also scaling their storage infrastructure. The Adaptec 2268300R is equipped with a powerful onboard processor that significantly boosts performance, driving down latency and increasing transaction speeds across connected drives.

Additionally, the Adaptec 2268300R features cache memory with a non-volatile option that enhances data integrity during unexpected power outages. This feature is essential for mission-critical applications where data loss can have severe repercussions. Moreover, the controller supports advanced caching algorithms, optimizing write and read performance to meet the demands of modern applications.

The controller also integrates seamlessly with Adaptec's management suite, providing users with a graphical interface to monitor and manage their storage solutions effectively. The web-based management tool allows administrators to configure RAID settings, monitor disk health, and perform troubleshooting, all from a centralized platform.

Security is another critical aspect of the Adaptec 2268300R. The controller comes equipped with encryption capabilities, enabling users to secure sensitive data at rest—protecting information from unauthorized access. Furthermore, with features like hot-spare drive support and automatic rebuilds, the controller assures continued operation even in the event of a disk failure.

In conclusion, the Adaptec 2268300R is a powerful RAID controller that delivers significant advantages in performance, flexibility, and reliability. With its support for multiple RAID levels, SAS and SATA compatibility, robust caching, and advanced management tools, it stands out as an ideal solution for businesses needing to safeguard and manage their vast data assets efficiently. Whether for enhancing data security or optimizing storage performance, the Adaptec 2268300R remains a sound choice in today’s data-driven landscape.