Intel SRCSASPH16I manual Redundancy and Error Handling

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•User specified rebuild rate (% of system resources to use from 0-100%).

Warning: Exceeding 50% rate may cause operating system errors caused by waiting for controller access.

•Background operating mode can be set for rebuilds, consistency checks, initialization (auto restarting consistency check on redundant volumes), migration, OCE, and patrol read.

Redundancy and Error Handling

•Enclosure management support, including LEDs.

•Activity and fault indicators per drive, port selector (dual-port drives).

•Drive coercion (auto resizing to match existing disks).

•Auto-detection of failed drives with transparent rebuild. Disk activity (I/O to the drive) must be present for a missing drive to be marked as failed.

•Auto-resume on reboot of initialization or rebuild (must be enabled before virtual disk creation).

•Smart initialization automatically checks consistency of virtual disks if there are five or more disks in a RAID 5 array which optimizes performance by enabling read- modify-write mode. RAID 5 arrays of only three or overdrives use peer read mode.

•Dirty cache LED plus cache write to disk error reporting.

•Smart Technology predicts failures of drives and electronic components.

•Patrol Read checks drives and maps bad sectors.

•Commands are retried at least four times.

•Firmware provides best effort to recognize an error and recover from it if possible.

•Failures are logged from controller and drive firmware, SMART monitor, SAF-TE controller.

•Failures are logged in NVRAM, viewable from OS Event Log, Intel® RAID Web Console 2; CIM, LEDs, and via alarm.

•Multiple cache options provide choice of speed, redundancy:

—Write: The data written / (done) signal is returned when data is written to drive or only to cache:

^Write-back (default): Faster, because it since doesn't wait for the disk, but data will be lost if power is lost.

^Write-through: Slower, but ensures data is on the disk.

—Read Ahead: Predicts the next read will be sequential and buffers this data into the cache:

^NonRead Ahead: Always reads from the drive after determining the exact location of each read.

^Adaptive Read Ahead: Will read ahead and cache data only if doing sequential reads.

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Intel® RAID Controller SRCSASPH16I Hardware Guide

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Contents Intel RAID Controller SRCSASPH16I Hardware Guide Intel Order Number E33256-001Intel RAID Controller SRCSASPH16I Hardware Guide Audience OrganizationRelated Publication Intel RAID Controller SRCSASPH16I Hardware Guide Figures Intel RAID Controller SRCSASPH16I Hardware Guide Contents Viii Tables Summary of SAS RAID Controller Features OverviewUsability Redundancy and Error Handling SAS and Sata Features Online Capacity Expansion and RAID Level Migration RulesBenefits of Serial Attached Scsi SAS Operating System SupportBeep Codes Intel RAID Controller SRCSASPH16I Hardware Guide Intel RAID Controller SRCSASPH16I Hardware Installation RequirementsInstallation Connecting the Disk Drive Connecting the Cables Serial a TAConfiguring the Storage Adapter Resolving a Configuration MismatchReplacing a Controller Intel RAID Controller SRCSASPH16I Characteristics Jumper Description Type CommentsTechnical Specifications Array Performance Features SpecificationsFault Tolerance Fault Tolerance FeaturesElectrical Characteristics Thermal and Atmospheric CharacteristicsSafety Characteristics Bios Glossary of Terms and AbbreviationsSAS

SRCSASPH16I specifications

The Intel SRCSASPH16I is a powerful and versatile RAID (Redundant Array of Independent Disks) controller designed specifically for enterprise environments. Offering robust performance and high data protection capabilities, it is ideal for server applications requiring reliable storage solutions. This card is particularly well-suited for those who demand enhanced I/O performance and fault tolerance.

One of the main features of the SRCSASPH16I is its support for SAS (Serial Attached SCSI) and SATA (Serial ATA) drives. This dual compatibility allows users to leverage both high-performance SAS drives and cost-effective SATA drives, providing flexibility in storage configurations. It supports up to 16 devices, enabling the creation of extensive storage arrays suitable for handling large volumes of data.

The SRCSASPH16I utilizes a high-speed PCIe (Peripheral Component Interconnect Express) interface, ensuring minimal latency and maximum throughput. This is crucial in environments where data access speeds are critical, such as database management systems or virtualized environments. With a throughput capability of up to 6 Gbps per port, users can expect efficient data transfer rates for demanding workloads.

Another notable characteristic of the Intel SRCSASPH16I is its sophisticated RAID support. It offers a variety of RAID levels, including RAID 0, 1, 5, 6, 10, 50, and 60, allowing for customizable levels of data redundancy and performance. This flexibility enables administrators to tailor their storage solutions according to specific application needs, whether prioritizing performance, redundancy, or a balance of both.

The controller features advanced management tools, including Intel’s RAID Web Console, which provides a user-friendly interface for monitoring performance, configuring RAID arrays, and managing storage devices. This reduces administrative overhead and helps ensure optimal performance through proactive monitoring.

Additionally, the SRCSASPH16I supports various technologies to enhance reliability and performance. It includes features like hot-swappable drives, which allow for the replacement of failed drives without downtime, and battery-backed write cache (BBWC) that preserves data during power outages to prevent data loss.

In summary, the Intel SRCSASPH16I is a high-performance, feature-rich RAID controller that meets the demands of modern enterprise environments. With its dual compatibility for SAS and SATA, advanced RAID capabilities, robust management tools, and focus on reliability, it is an excellent choice for businesses looking to optimize their storage infrastructure while ensuring data integrity.
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