IBM PureFlex System and IBM Flex System Products and Technology

191

highly random data storage access pattern, such as transactional databases. Part number

90Y4412 is an FoD license.

򐂰 SSD Caching Enabler for traditional hard drives (90Y4447)

The SSD Caching Enabler for IBM Flex System, implemented by using the LSI MegaRAID

CacheCade Pro 2.0, is designed to accelerate the performance of HDD arrays. It can do

so with only an incremental investment in SSD technology. The feature enables the SSDs

to be configured as a dedicated cache to help maximize the I/O performance for

transaction-intensive applications, such as databases and web serving. The feature tracks

data storage access patterns and identifies the most frequently accessed data. The hot

data is then automatically stored on the SSDs that are assigned as a dedicated cache

pool on the ServeRAID controller. Part number 90Y4447 is a FoD license. This feature

requires that at least one SSD drive is installed.

5.3.8 Supported internal drives

The x220 supports 1.8-inch and 2.5-inch drives.

Supported 1.8-inch drives

The 1.8-inch solid-state drives supported with the ServeRAID M5115 are listed in Table 5-38.

Table 5-38 Table 9. Supported 1.8-inch solid-state drives

Supported 2.5-inch drives

The 2.5-inch drive bays support SAS or SATA HDDs or SATA SSDs. Table 5-39 lists the

supported 2.5-inch drive options. The maximum quantity supported is two.

Table 5-39 2.5-inch drive options for internal disk storage

Part number Description Maximum supported

43W7746 IBM 200 GB SATA 1.8-inch MLC SSD 8

43W7726 IBM 50 GB SATA 1.8-inch MLC SSD 8

Part number Description

Supported by ServeRAID controller

C105 H1135 M5115

10 K SAS hard disk drives

42D0637 IBM 300 GB 10 K 6 Gbps SAS 2.5-inch SFF Slim-HS HDD No

Supported Supported

49Y2003 IBM 600 GB 10 K 6 Gbps SAS 2.5-inch SFF Slim-HS HDD No

Supported Supported

81Y9650 IBM 900 GB 10 K 6 Gbps SAS 2.5-inch SFF HS HDD No

Supported Supported

15 K SAS hard disk drives

42D0677 IBM 146 GB 15 K 6 Gbps SAS 2.5-inch SFF Slim-HS HDD No

Supported Supported

81Y9670 IBM 300 GB 15 K 6 Gbps SAS 2.5-inch SFF HS HDD No

Supported Supported

NL SATA

81Y9722 IBM 250 GB 7.2 K 6 Gbps NL SATA 2.5-inch SFF HS HDD

Supported Supported Supported

81Y9726 IBM 500 GB 7.2 K 6 Gbps NL SATA 2.5-inch SFF HS HDD

Supported Supported Supported

81Y9730 IBM 1 TB 7.2 K 6 Gbps NL SATA 2.5-inch SFF HS HDD

Supported Supported Supported