IBM System x3850 X5 Implementation Manual page 115

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Figure 3-24 Disabling battery cache on controller in MegaRAID web BIOS

ServeRAID M5000 Series Performance Accelerator Key

ServeRAID M5000 Series Performance Accelerator Key for System x enables performance

enhancements that are needed by emerging SSD technologies that are being used in a

mixed SAS and SSD environment. You use a seamless field-upgradeable key. ServeRAID

M5000 Series Performance Accelerator Key for System x provides these benefits:

Performance optimization for SSDs: Improve SAS/SATA Controller performance to match

an array of SSDs.

Flash tiering enablement: A data-tiering enabler to support hybrid environments of SSDs

and HDDs, realizing higher levels of performance.

MegaRAID recovery: A data recovery feature that works both in pre-boot and OS

environments.

RAID 6, 60 enablement for added data protection.

SED support enablement for encryption-equipped devices.

Convenient upgrade with easy-to-use pluggable key.

We cover these controllers in detail in 3.9.4, "SAS and SSD controllers" on page 96.

1.8-inch hard drive options

Table 3-26 lists the supported 1.8-inch SSDs.

Table 3-26 IBM 1.8-inch SSD for use in the IBM eXFlash backplanes

Option number

Feature code

IBM 50GB SATA 1.8-inch NHS SSD

Chapter 3. IBM System x3850 X5 and x3950 X5

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