Lenovo Flex System x240 User's Guide download pdf (Page 19)

Flex System x240 Compute Node (E5-2600 v2) 19

The eight SSDs are installed in the following locations:

Four in the front of the system in place of the two 2.5-inch drive bays



Two in a tray above one of the memory banks for CPU 1

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Two in a tray above one of the memory banks for CPU 2



The ServeRAID M5115 controller has the following specifications:

Eight internal 6 Gbps SAS/SATA ports



PCI Express 3.0 x8 host interface

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6 Gbps throughput per port

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800 MHz dual-core IBM PowerPC® processor with LSI SAS2208 6 Gbps RAID on Chip (ROC)



controller

Support for RAID levels 0, 1, 10, 5, 50 standard; support for RAID 6 and 60 with optional upgrade



using 90Y4411

Onboard 1 GB data cache (DDR3 running at 1333 MHz) with optional flash backup (MegaRAID



CacheVault technology) as part of the Enablement Kit 90Y4342.

Support for 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) not recommended

Support for self-encrypting drives (SEDs) with MegaRAID SafeStore



Optional support for SSD performance acceleration with MegaRAID FastPath and SSD caching with



MegaRAID CacheCade Pro 2.0 (90Y4447)

Support for up to 64 virtual drives, up to 128 drive groups, up to 16 virtual drives per one drive group,



and up to 32 physical drives per one drive group

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

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Configurable stripe size up to 1 MB

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

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S.M.A.R.T. support

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MegaRAID Storage Manager management software

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Optional add-ons to the ServeRAID M5115 controller are RAID 6 support, SSD performance accelerator,

and SSD caching enabler. The feature upgrades are as listed in the following table. These are all FoD

license upgrades.

Table 11. Supported upgrade features

Part number Feature

code

Description Maximum

supported

90Y4410 A2Y1 ServeRAID M5100 Series RAID 6 Upgrade for Flex System 1

90Y4412 A2Y2 ServeRAID M5100 Series Performance Upgrade for Flex System

(MegaRAID FastPath)

90Y4447 A36G ServeRAID M5100 Series SSD Caching Enabler for Flex System

(MegaRAID CacheCade Pro 2.0)

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 41 42

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Lenovo Flex System x240 User's Guide Page 19

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