Lenovo E5-2600 v4 Manual do produto - Página 15

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Figure 5. ServeRAID M5215 SAS/SATA controller

Note: The ServeRAID M5215 installed in the x240 M5 only supports two 2.5-inch drives using the supplied

backplane. 1.8-inch drives are not supported.

The ServeRAID M5215 SAS/SATA controller has the following features:

Eight internal 12 Gbps SAS/SATA ports (also supports 6 Gbps)

PCI Express 3.0 x8 host interface

12 Gbps throughput per port

LSI SAS3108 12 Gbps RAID on Chip (ROC) controller

Onboard 2 GB data cache (DDR3 running at 1866 MHz)

Support for RAID levels 0 and 1

Standard flash power module (supercapacitor-based) provides the power capacity needed to off-load the

cache to flash in the event of a power failure

Support SAS and SATA HDDs and SSDs

Support for intermixing SAS and SATA HDDs and SSDs; mixing different types of drives in the same

array (drive group) is not recommended

Support for self-encrypting drives, SEDs (LSI MegaRAID SafeStore)

Optional support for SSD performance acceleration with MegaRAID FastPath

Support for up to 64 virtual disks, up to 128 arrays, and up to 16 virtual disks per array

Support for logical unit number (LUN) sizes up to 64 TB

Configurable stripe size up to 1 MB

Compliant with Disk Data Format (DDF) configuration on disk (COD)

S.M.A.R.T. support

MegaRAID Storage Manager management software

The Performance Accelerator upgrade (47C8710), implemented using the LSI MegaRAID FastPath software,

provides high-performance I/O acceleration for SSD-based virtual drives by using an extremely low-latency I/O

path to increase the maximum I/O per second (IOPS) capability of the controller. This feature boosts the

performance of applications with a highly random data storage access pattern, such as transactional

databases. Part number 47C8710 is a Feature on Demand license.

Lenovo Flex System x240 M5 (E5-2600 v4)