IBM PureFlex System and IBM Flex System Products and Technology

186 IBM PureFlex System and IBM Flex System Products and Technology

identical. In rank sparing mode, one rank of a DIMM in each populated channel is reserved as

spare memory. The size of a rank varies depending on the DIMMs installed.

Table 5-34 lists the memory options available for the x220 server. DIMMs can be installed one

at a time, but for performance reasons, install them in sets of three (one for each of the three

memory channels).

Table 5-34 Memory options for the x220

5.3.7 Internal disk storage controllers

The x220 server has two 2.5-inch hot-swap drive bays accessible from the front of the blade

server (Figure 5-24 on page 177). The server optionally supports 1.8-inch solid-state drives,

as described in “ServeRAID M5115 configurations and options” on page 188.

The x220 supports three disk controllers:

򐂰 ServeRAID C105: An onboard SATA controller with software RAID capabilities

򐂰 ServeRAID H1135: An entry level hardware RAID controller

򐂰 ServeRAID M5115: An advanced RAID controller with cache, backup, and RAID options

These three controllers are mutually exclusive. Table 5-35 lists the ordering information.

Table 5-35 Internal storage controller ordering information

ServeRAID C105 controller

On standard models, the two 2.5-inch drive bays are connected to a ServeRAID C105

onboard SATA controller with software RAID capabilities. The C105 function is embedded in

the Intel C600 chipset.

Part number Description Models where

used

Registered DIMM (RDIMM) modules

49Y1406 4 GB (1x 4 GB, 1Rx4, 1.35 V) PC3L-10600 CL9 ECC DDR3 1333 MHz LP RDIMM J2x, L2x

49Y1407 4 GB (1x 4 GB, 2Rx8, 1.35 V) PC3L-10600 CL9 ECC DDR3 1333 MHz LP RDIMM C2x, D2x,

G2x, G4x, H2x

90Y3109 8 GB (1x 8 GB, 2Rx4, 1.5 V) PC3-12800 CL11 ECC DDR3 1600 MHz LP RDIMM

49Y1397 8 GB (1x 8 GB, 2Rx4, 1.35 V) PC3L-10600 CL9 ECC DDR3 1333 MHz LP RDIMM

49Y1400 16 GB (1x 16 GB, 4Rx4, 1.35 V) PC3L-8500 CL7 ECC DDR3 1066 MHz LP RDIMM

Unbuffered DIMM (UDIMM) modules

49Y1403 2 GB (1x 2 GB, 1Rx8, 1.35 V) PC3L-10600 ECC DDR3 1333 MHz LP UDIMM A2x, B2x

49Y1404 4 GB (1x 4 GB, 2Rx8, 1.35 V) PC3L-10600 CL9 ECC DDR3 1333 MHz LP UDIMM -

Part number Description Maximum quantity

Integrated ServeRAID C105 1

90Y4750 ServeRAID H1135 Controller for IBM Flex System and IBM

BladeCenter

1

90Y4390 ServeRAID M5115 SAS/SATA Controller 1

187

The C105 has the following features:

򐂰 Support for SATA drives (SAS is not supported)

򐂰 Support for RAID 0 and RAID 1 (non-RAID is not supported)

򐂰 6 Gbps throughput per port

򐂰 Support for up to two volumes

򐂰 Support for virtual drive sizes greater than 2 TB

򐂰 Fixed stripe unit size of 64 KB

򐂰 Support for MegaRAID Storage Manager management software

ServeRAID H1135

The x220 also supports an entry level hardware RAID solution with the addition of the

ServeRAID H1135 Controller for IBM Flex System and BladeCenter. The H1135 is installed in

a dedicated slot (Figure 5-26 on page 180). When the H1135 adapter is installed, the C105

controller is disabled.

The H1135 has the following features:

򐂰 Based on the LSI SAS2004 6 Gbps SAS 4-port controller

򐂰 PCIe 2.0 x4 host interface

򐂰 CIOv form factor (supported in the x220 and BladeCenter HS23E)

򐂰 Support for SAS, SATA, and SSD drives

򐂰 Support for RAID 0, RAID 1, and non-RAID

򐂰 6 Gbps throughput per port

򐂰 Support for up to two volumes

򐂰 Fixed stripe size of 64 KB

򐂰 Native driver support in Windows, Linux, and VMware

򐂰 S.M.A.R.T. support

򐂰 Support for MegaRAID Storage Manager management software

ServeRAID M5115

The ServeRAID M5115 SAS/SATA Controller (90Y4390) is an advanced RAID controller that

supports RAID 0, 1, 10, 5, 50, and optional 6 and 60. It includes 1 GB of cache, which can be

backed up to flash memory when attached to an optional supercapacitor. The M5115

attaches to the I/O adapter 1 connector. It can be attached even if the Fabric Connector is

installed (used to route the Embedded Gb Ethernet to chassis bays 1 and 2). The ServeRAID

M5115 cannot be installed if an adapter is installed in I/O adapter slot 1. When the M5115

adapter is installed, the C105 controller is disabled.

The ServeRAID M5115 supports combinations of 2.5-inch drives and 1.8-inch solid-state

drives:

򐂰 Up to two 2.5-inch drives only

򐂰 Up to four 1.8-inch drives only

򐂰 Up to two 2.5-inch drives, plus up to four 1.8-inch SSDs

򐂰 Up to eight 1.8-inch SSDs

For more information about these configurations, see “ServeRAID M5115 configurations and

options” on page 188.

Restriction: There is no native (in-box) driver for Windows and Linux. The drivers must be

downloaded separately. In addition, there is no support for VMware, Hyper-V, Xen, or

SSDs.