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

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