<a href="https://www.gigabyte.com/Accessory/CRAO438-rev-10#ov" style="display: block;">https://www.gigabyte.com/Accessory/CRAO438-rev-10#ov</a><br><br><b>GIGABYTE RAID & SAS Adapter Solutions</b><br>Ensure your critical data is protected and available with GIGABYTE. Based on Broadcom’s reliable and trusted SAS 3108 / 3008 controllers, GIGABYTE’s RAID & SAS Adapter solutions can address a variety of different direct-attached storage (DAS) environments – SATA or SAS, hard disk drives (HDDs) or solid state drives (SSDs), server-based storage or external direct-attached JBODs and storage enclosures.<br><br><b>CRAO438 Internal Storage Hardware RAID Solution</b><br>x8 PCI Express 3.0 to 12 Gb/s SAS + SATA interface<br>Broadcom SAS 3108 PowerPC 476 Controller @ 1.2GHz<br>Connect up to 32 physical drives via SAS expander in RAID mode<br>Supports high-bandwidth applications with PCIe® 3.0 connectivity<br>Supports 12, 6 and 3Gb/s SAS and 6, 3Gb/s SATA data transfer rates<br>Supports RAID levels 0, 1, 5, 6, 10, 50, 60 as standard: balance protection and performance for critical applications<br>2GB Onboard DDR3 Cache Memory for write-cache ability to improve performance<br>SR-IOV (Single Root I/O Virtualization) supported with up to 16 VF (Virtual Functions)<br>Fit into 1U/2U rack-mounted servers with low-profile form factor<br><br>2GB Onboard DDR3 Memory for Write-Back Cache<br>This RAID add-on card features 2GB of onboard DDR3 cache memory to support write-back RAID caching. RAID caching is an excellent and cost-effective way to improve I/O performance by writing data to a controller’s cache before it is written to disk. Write-back cache improves application performance by storing write data to high performance cache memory during periods of heavy use. Where there is a break in user requests, the data is written from the cache memory to the storage array.<br><br>Optional Flash Cache Protection Module<br>To protect against the loss of data being temporarily stored in cache memory before it has been written to disk, this RAID card can be combined with a Broadcom CacheVault CVM02 Flash Cache Protection Module. CacheVault technology prevents data loss by powering critical components of the card long enough to automatically transfer the cached data to a NAND flash module. Once power returns, the data is restored to the cache and normal operation resumes.<br><br>Write-Back Cache Protection<br>During normal write-back operation when data is written to the RAID card’s onboard cache memory (DRAM), the I/O is acknowledged as “complete†to the application that issued the write, and later the write is flushed to disk. If power is lost while write-back cache is enabled, the writes in DRAM may be lost. Since the controller has already acknowledged the I/O as complete, the application is unaware of the data loss.<br><br>Super Capacitor Technology Eliminates Hardware Maintenance Costs<br>Older generations of RAID controllers used lithium-ion based battery backup units. Over the life of a controller, the battery needed to be replaced numerous times, as it is only good for about 1.5 years. Furthermore, shipping and disposing lithium-ion batteries require special considerations and fees. The Broadcom CacheVault Protection Modules feature a super capacitor instead of lithium-ION batteries for back-up power, which virtually eliminates maintenance costs (does not need replacement over the life of the controller card), lowers total cost of ownership, and is more environmentally friendly.<br><br><ul><li>2 x SlimSAS ports, up to 8 x SAS 12Gb/s ports</li><li>Up to 32 x physical devices supported via SAS expander</li><li>Broadcom SAS3108</li><li>Hardware RAID 0/1/5/6/10/50/60</li><li>2GB DDR3 1866 cache memory</li><li>PCIe 3.0 x8 bus</li><li>(Optional) CacheVault Flash Cache Protection Module</li><li>OCP Form Factor (Type1)</li></ul>
Gigabyte CRAO438. Interfaces de stockage prises en charge : SAS, Interface hôte : PCI. Taux de transfert de données : 12 Gbit/s, Mémoire interne : 2 Mo, Type de mémoire interne : DDR3. Largeur : 110,8 mm, Profondeur : 78 mm, Largeur du colis : 251 mm
