Dell PowerEdge M820 Technical Manual

Also see for PowerEdge M820 Systems: Manual Command reference guide Owner's manual Information update Release notes

Contents

Dell PowerEdge M820 Technical Manual Manual pdf 22 page image

22 PowerEdge M820 Technical GuideExpress Flash drivesExpress Flash drives use PCIe and SSD technologies to provide performance, scalability and optimalserviceability. Accelerated performance with high IOPs is made possible without requiring processorresources or capturing DRAM. Also, Express Flash drives use a standardized, 2.5-inch hot-plug formfactor, which allows a common management process for all drives.The PowerEdge M820 has an option to support up to two Express Flash PCIe SSD drives with thePCIe SSD backplane configuration. This backplane configuration may be selected at purchase, butmay not be upgraded later.Storage controllersDell provides highly capable RAID options for you to ensure that your data remains safe. Dell’s RAIDcontroller options offer impressive performance improvements. The internal RAID controllers have adedicated connection to the system board.Supported RAID controllersThe newest line of PowerEdge RAID Controllers (PERCs) offers high I/O performance for a variety ofuses, including database applications and streaming digital media environments.PERC H710PThe PERC H710P is an eight-port, internal, 6Gbps PCIe RAID controller (mini form factor) with 1GBDDR3 non-volatile (NV) cache.PERC H710The PERC H710 is an eight-port, internal, 6Gbps PCIe RAID controller (mini form factor) with 512MBDDR3 NV cache.PERC H310The PERC H310 is an eight-port, internal, 6Gbps PCIe RAID controller (mini form factor) that is alow-cost, entry-level RAID solution.For more information about the latest PERC offerings, see Dell.com/PERC.RAID controller feature supportTable 12 lists the features supported by the RAID controller options on the M820.Table 12. RAID controller feature supportFeaturePERC optionH310 H710 H710PSoftware RAID stackiMR firmware stack MR firmware stack  SSD support   SATA backplaneSAS backplane   SATA hard drives 1 1 1