Lenovo Flex System x240 User's Guide download pdf (Page 20)

Flex System x240 Compute Node (E5-2600 v2) 20

These features are described as follows:

RAID 6 Upgrade (90Y4410)



Adds support for RAID 6 and RAID 60. This is a Feature on Demand license.

Performance Upgrade (90Y4412)



The Performance Upgrade for Flex System (implemented using the LSI MegaRAID FastPath

software) provides high-performance I/O acceleration for SSD-based virtual drives by exploiting 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 90Y4412 is a Feature on Demand

license.

SSD Caching Enabler for traditional hard drives (90Y4447)



The SSD Caching Enabler for Flex System (implemented using the LSI MegaRAID CacheCade Pro

2.0) is designed to accelerate the performance of hard disk drive (HDD) arrays with only an

incremental investment in solid-state drive (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 Feature on Demand license. This feature requires at least one SSD drive be installed.

Note: Not all SSDs support SSD Caching Enabler (CacheCade) feature. See

http://ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5094754 for details.

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Lenovo Flex System x240 User's Guide Page 20