HP Smart Array P244br Controller
c04346275 – DA – 15037 Worldwide — Version 1 — September 9, 2014
Supports Predictive Spare Activation
SAS physical links distributed across 2 x1 internal port connectors.
HP's High Performance Architecture sets new boundaries of industry performance expectations!
12Gb/s SAS
1 GB DDR3 MHz 40bit Flash-Backed Write Cache provides up to 4.2GB/s maximum bandwidth.
X4 8.5G PCI Express host interface provides 4GB/s maximum bandwidth.
MIPS 32-bit Processor
Read ahead caching
Flash Backed Write-back Cache
Native Command Queuing (NCQ) is a technology designed to increase performance of SATA hard disk
drives by allowing the individual hard disk to internally optimize the order in which received read and
write commands are executed. This can reduce the amount of unnecessary going back-and-forth on
the drive's heads, resulting in increased performance for workloads where multiple simultaneous
read/write requests are outstanding, most often occurring in server or storage-type applications.
Without NCQ the drive has to process and complete one command at a time. For NCQ to be enabled, it
must be supported and turned on in the controller and in the hard drive itself.
Given the increasing need for high performance and rapid capacity expansion, the SA-P244br offers:
Up to 2.4TB of internal storage with 2x internal 1.2TB 2.5" SAS/SATA SFF hard drives.
Provides increased server uptime by providing advanced storage functionality:
Online Capacity Expansion (with FBWC)
Online RAID Level Migration (with FBWC )
Online Stripe Size Migration (with FBWC)
Pre-Failure Warranty
The following features offer detection of possible failures before they occur, allowing preventive
action to be taken:
S.M.A.R.T.: Self Monitoring Analysis and Reporting Technology first developed at HP detects
possible hard disk failure before it occurs, allowing replacement of the component before
failure occurs.
Drive Parameter Tracking monitors drive operational parameters, predicting failure and
notifying the administrator.
Dynamic Sector Repairing continually performs background surface scans on the hard disk
drives during inactive periods and automatically remaps bad sectors, ensuring data integrity.
Smart Array Cache Tracking monitors integrity of controller cache, allowing pre-failure
preventative maintenance.
Keeps data available and server running while a failed drive is being replaced; several fault tolerance
configurations are supported including:
RAID 1 & 10 (Drive Mirroring): Supported with a minimum of 2 drives. This allocates half of the
drive array to the data and the other half to the mirrored data, providing two copies of the
data.
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