Product Description The generation of Adaptec Unified Serial controllers meets your need for maximum performance, scalability, and flexibility for enterprise-class applications, including network attached storage (NAS), online transaction processing (OTLP), web, digital surveillance, and streaming applications. The Adaptec RAID 5805 is equipped with industry-leading dual core RAID on Chip (ROC), the latest x8 PCI-Express connectivity, and 512 MB of DDR2 cache to deliver over 250,000 IO per second and 1.2 GB/s. Eight internal ports in this Unified Serial controller allow you to connect up to 256 SATA/SAS disk drives through SAS expanders. The Adaptec RAID 5805 features Adaptec RAID Code (ARC) with RAID levels 0, 1, 1E, 5, 5EE, 6, 10, 50, 60, JBOD, as well as copy back hot spare. Adaptec Storage Manager provides one-view centralized management of all your Adaptec RAID controllers. The Adaptec RAID 5085 also integrates the latest PCIe connectivity, the broadest operating system support, including open source Linux drivers, a battery backup option, and proven compatibility. From the Manufacturer With an industry-leading dual core RAID on Chip (ROC), DDR2 533MHz write cache, support for up to 256 SATA/SAS devices (using SAS expanders), and an x8 PCI Express host interface bus connection, the Series 5 controllers delivers impressive performance numbers -- over 250,000 I/Os and 1.2GB/s. These controllers are ideal for enterprise-class storage applications that call for maximum performance, scalability and flexibility. The Adaptec RAID 5805 utilizes industry-leading dual core RAID on Chip (ROC), 512MB of DDR2 write cache, and connectivity with the latest x8 PCI-Express to deliver over 250,000 I/Os 1.2GB. Using SAS expanders, it can connect up to 256 SATA/SAS devices. The Adaptec RAID 5805 supports a broad range of operating systems, compatibility with more than 300 third-party devices, and full integration with Adaptec Storage Manager for centralized management of all Adaptec RAID controllers on the network. Advanced Data Protection Adaptec RAID Code (ARC) delivers maximum reliability with RAID levels 0, 1, 1E, 5, 5EE, 6, 10, 50, 60 and JBOD. ARC also offers RAID Level Migration (the ability to easily migrate RAID levels), Online Capacity Expansion (expand capacity without powering down the server), and Copyback Hot Spare (when a failed drive has been replaced, data is automatically copied from the hot spare back to the restored drive). Hybrid RAID With Hybrid RAID 1 & 10 the Series 5 controllers offer maximum performance and reliability by combining Solid State Drives (SSDs) and Hard Disk Drives (HDDs) in a single array. By performing read operations from the faster SSD and write operations on both the SSDs and HDDs the result is tremendous performance gains over standard HDD RAID arrays. Hybrid RAID offers the benefits of both technologies and allows a better cost per GB ratio than comparable SSD-only RAID arrays. The Case for Cache The fastest way for a RAID controller to fulfill a read or write request is to serve data out of its cache. Enabling the RAID controller cache offers significant performance benefits, such as reduced latency in I/O requests, bandwidth and queue depths that surpass software application limits, and on-the-fly parity calculations on sequential writes. Intelligent Power Management The power required by disks is a primary ongoing storage cost. Full power is maintained to every disk whether it is actively being used or not, which also increases cooling costs. Adaptec Intelligent Power Management slashes power and cooling costs by spinning down idle disks and providing a lower power mode for active disks. Broad Operating System Support Extensive operating system support includes all major software releases, such as Windows, Linux, FreeBSD, and UNIX variants. Features & details 8 internal ports, low-profile MD2 form factor 1.2 GHz dual core RAID on Chip (ROC) High-performance RAID 5 and 6 Up to 512 MB DDR2 cache Supports Up To 256 Sata Or Sas Drives Using Sas Expanders الحالة مستعمل النوع قطع الكمبيوتر