Chapter 3. IBM System x3850 X5 and x3950 X5 97
Supports RAID-0, RAID-1, and RAID-1E
No battery and no onboard cache
ServeRAID M5014 and M5015 controllers
The ServeRAID M5014 and M5015 adapter cards have the following specifications:
Eight internal 6 Gbps SAS/SATA ports
Two mini-SAS internal connectors (SFF-8087)
Throughput of 6 Gbps per port
An 800 MHz PowerPC® processor with LSI SAS2108 6 Gbps RAID on Chip (ROC)
controller
x8 PCI Express 2.0 host interface
Onboard data cache (DDR2 running at 800 MHz):
– ServeRAID M5015: 512 MB
– ServeRAID M5014: 256 MB
Intelligent battery backup unit with up to 48 hours of data retention:
– ServeRAID M5015: Optional for feature code 0093, standard for part 46M0829
– ServeRAID M5014: Optional
RAID levels 0, 1, 5, 10, and 50 support (RAID 6 and 60 support with the optional M5000
Advanced Feature Key)
Connection of up to 32 SAS or SATA drives
SAS and SATA drive support (however, the mixing of SAS and SATA in the same RAID
array is not supported)
Up to 64 logical volumes
Logical unit number (LUN) sizes up to 64 TB
Configurable stripe size up to 1 MB
Compliance with Disk Data Format (DDF) configuration on disk (COD)
Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.) support
Support for the optional M5000 Series Performance Accelerator Key, which is
recommended when using SSD drives in a mixed environment with SAS and SSD:
– RAID levels 6 and 60
– Performance optimization for SSDs
– LSI SafeStore: Support for self-encrypting drive services, such as instant secure erase
and local key management (which requires the use of self-encrypting drives)
Support for the optional M5000 Advanced Feature Key, which enables the following
features:
– RAID levels 6 and 60
– LSI SafeStore: Support for self-encrypting drive services, such as instant secure erase
and local key management (which requires the use of self-encrypting drives)
Battery cache: Battery cache is not needed when using all SSD drives. If using a
controller in a mixed environment with SSD and SAS, you must order and use the
battery and the performance enablement key.
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