Dell PowerEdge R720 Technical Guide - Page 28

Table 14 lists the RAID controllers supported on the R720 and R720xd. Controller Description PERC H810 External Eight-port, external, 6Gb/s PCIe RAID controller that supports up to 192 SATA and SAS HDDs or SSDs PERC H710P Internal Eight-port, internal, 6Gb/s PCIe RAID controller that supports up to 32 SATA and SAS HDDs or SSDs PERC H710 Eight-port, internal, 6Gb/s PCIe RAID controller that supports up to 32 SATA and SAS HDDs or SSDs PERC H310 PERC S110 Software RAID (R720 only) Eight-port, internal, 6Gb/s PCIe RAID controller that is a low-cost, entry-level solution supporting up to 32 SATA and SAS HDDs or SSDs 3Gb/s SATA software RAID controller that is a low-cost, entry-level solution, supporting up to four physical disks or eight virtual disks Features RAID modes Includes 1GB NV DDR3 cache, premium performance and feature set, security SED/EKMS, and SSD as cache 0, 1, 10, 5, 50, 6, 60 Includes 1GB NV DDR3 cache, premium performance and feature set, security SED/EKMS, and SSD as cache 0, 1, 10, 5, 50, 6, 60 Includes 512MB DDR3 cache, advanced feature set, security SED/EKMS, and SSD as cache 0, 1, 10, 5, 50, 6, 60 Supports hot-plug drives, expansion, tape drives, pass-thru 0, 1, 10, 5, 50 Supports hot-plug SATA drives (4-drive maximum); no expansion; Microsoft® Windows® only 0, 1, 5, 10 Form factor Usage model Adapter Premium performance Adapter Premium performance Adapter Performance Adapter Value Motherboard -embedded Entry-level SATA For more information about the latest PERC offerings, see Dell.com/PERC. CacheCade is a technology that provides automated storage tiering on SSDs with the PERC H810 and H710P. It works by detecting the most-often accessed data and copying it over time to the CacheCade SSD(s) where that cached data is accessed directly, instead of accessing the hard disk drives. This can dramatically increase how your applications respond when they are under peak traffic times and how they perform when response time is critical. CacheCade provides cost-effective performance scaling for database-type applications that perform lots of random reads, and saves the cost of adding extra drives. 28 PowerEdge R720 and R720xd Technical Guide