46M0830, IBM ServeRAID M5025 SAS/SATA Controller The ServeRAID M5025 adapter card has the following specifications: Eight external 6 Gbps SAS 2.0 ports implemented through two four-lane (x4 connectors Two mini-SAS external connectors (SFF-8088 6 Gbps throughput per SAS port 800 MHz PowerPC processor with LSI SAS2108 6 Gbps RAID on Chip (ROC controller PCI Express 2.0 x8 host interface 512 MB onboard data cache (DDR2 running at 800 MHz Intelligent lithium polymer battery backup unit standard with up to 48 hours of data retention Supports RAID levels 0, 1, 5, 10, and 50 (RAID 6 and 60 support with the optional M5000 Advanced Feature Key Connects to: Up to 240 SAS or SATA drives Up to 9 daisy-chained enclosures per port SAS and SATA drives are supported, but the mixing of SAS and SATA in the same RAID array is not supported Supports up to 64 logical volumes Supports LUN sizes up to 64 TB Configurable stripe size up to 1024 KB Compliant with Disk Data Format (DDF configuration on disk (COD S.M.A.R.T. support Supports 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