Chapter 4. IBM System x3690 X5 163 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 dataretention. Support for RAID levels 0, 1, 5, 10, and 50 (RAID 6 and 60 support with either M5000Advanced Feature Key or M5000 Performance Key). Connections:– Up to 240 SAS or SATA drives.– Up to nine daisy-chained enclosures per port. SAS and SATA drives are supported, but the mixing of SAS and SATA in the same RAIDarray is not supported. Support for up to 64 logical volumes. Support for 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. Support for the optional M5000 Advanced Feature Key, which enables the followingfeatures:– RAID levels 6 and 60.– LSI SafeStore: Support for self-encrypting drive services, such as instant secure eraseand local key management (which requires the use of self-encrypting drives). Support for SSD drives in a mixed environment with SAS and SSD with the optionalM5000 Series Performance Accelerator Key, which enables the following features:– RAID levels 6 and 60.– Performance optimization for SSDs.– LSI SafeStore: Support for self-encrypting drive services, such as instant secure eraseand local key management (which requires the use of self-encrypting drives).For more information, see ServeRAID M5025 SAS/SATA Controller for IBM System x,TIPS0739, which is available at the following website:http://www.redbooks.ibm.com/abstracts/tips0739.html?Open4.9.8 Optical drivesAn optical drive is optional. Table 4-30 on page 163 lists the supported part numbers.Table 4-30 Optical drivesPart number Feature code Description46M0901 4161 IBM UltraSlim Enhanced SATA DVD-ROM46M0902 4163 IBM UltraSlim Enhanced SATA Multi-Burner
