View the refurbished HP Smart Array P421/2GB FBWC 6Gb 2-ports Ext SAS Controller 631674-B21 633539-001 Quickspecs here
The HP Smart Array P421 Controller is a low profile, 6 Gb/s, PCIe 3.0, Serial Attached SCSI (SAS) RAID controller that provides enterprise class, storage performance, maximum external scalability, and data protection for select HP ProLiant Gen8 rack servers and tower servers.It features eight external SAS ports and delivers increased server uptime by providing advanced storage functionality, including online RAID level migration (between any RAID levels) with flash back write cache, global online spare, and pre-failure warning. Data Compatibility among all models of Smart Array controllers allows simple and easy migration at any time when needs for higher performance, capacity, and availability increase. Even new generations of Smart Array controllers can understand the data format of previous generations of Smart Array controllers.
The SA-P421 Controller supports up to 200 drives.
The SA-P421 Controller supports the HP D2600 Disk Enclosure and HP D2700 Disk Enclosure (up to 8 daisy chained)Seamless upgrades to current or next generation HP high performance and high capacity Serial Attached SCSI Smart Array controllers
6Gb/s SAS technology delivers high performance and data bandwidth and contains full compatibility with 3Gb/s SATA technology.
x8 PCIe 3.0 host interface technology delivers high performance and data bandwidth up to 8.5 GB/s maximum bandwidth.
Standard on the P421 are RAID 6, RAID 60, RAID 1 ADM, Capacity Expansion, mirror split, recombine, and rollback in Online Mode, Drive Erase, Performance Optimization-Degraded Reads and Read Coalescing, Move/Delete any individual LUNS
The HP SSD Smart Path feature included in the Smart Array software stack improves SSD reads for all RAID levels and RAID 0 write operations by optimizing the path to each SSD attached to the controller
The HP SmartCache licensed feature (available as an additional option) is a controller-based read caching solution in a DAS environment that caches the most frequently accessed data ("hot" data) onto lower latency SSDs to dynamically accelerate application workloads
Mix-and-match SAS and SATA hard drives, lets you deploy drive technology as needed to fit your computing environment
Support for SAS tape products
Software consistency on most current shipping Smart Array products: HP Smart Storage Administrator, HP Systems Insight Manager, and HP Intelligent Provisioning. The HP Smart Storage Administrator configures and manages a host of Smart Array controllers and other storage devices using a single interface. It replaces the HP Array Configuration Utility (ACU) with an updated design and configuration enhancements
1GB or 2 GB 72-bit wide DDR3 1333 MHz Flash Back Write Cache module standard
Low-profile PCI Express form factor - ships with a full size bracket for deployment in either a low-profile or full sized slot
Second Generation 6Gb/s SAS (600MB/s bandwidth per physical link)
x8 6Gb/s SAS physical links (compatible with 3Gb/s SATA)
1GB or 2GB 72-bit wide DDR3-1333MHz flash backed write cache provides up to 10.6 GB/s maximum cache bandwidth
Read ahead caching
Write-back caching (with FBWC)
