IBM System x3850 X5 Implementation Manual page 171

Table 4-25 Controllers supported with the eXFlash SSD backplane option
Part number Feature code
46M0914 3876
46M0829 0093
46M0916 3877
46M0969 3889
81Y4426 A10C
a. Add the Performance Accelerator Key to the ServeRAID M5015 or M5014 for use with SSDs.
Important: When ordering M5000 series controllers for use with SSD drives, you must
use the cache battery.
If using M5000 series controllers in a mixed environment, order the cache battery along
with Performance Accelerator Key.
If you have already set up the ServeRAID controller that you plan to use and you want to
leave the battery attached, you can still disable the write back cache by going into the
MegaRAID web BIOS configuration utility and disabling Disk Cache and Default Write, as
shown in Figure 4-24.
Figure 4-24 Disabling battery cache on controller in MegaRAID web BIOS
Description
IBM 6Gb SSD Host Bus Adapter (No RAID support)
ServeRAID M5015 SAS/SATA Controller
ServeRAID M5014 SAS/SATA Controller
ServeRAID B5015 SSD
IBM ServeRAID M5000 Performance Accelerator Key: Adds Cut
Through I/O (CTIO) for SSD FastPath optimization on ServeRAID
M5014, M5015, and M5025 controllers.
Chapter 4. IBM System x3690 X5
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