IBM System x3100 M4 22Regulatory complianceThe server conforms to the following international standards:FCC - Verified to comply with Part 15 of the FCC Rules, Class ACanada ICES-003, issue 4, Class AUL/IEC 60950-1CSA C22.2 No. 69950-1-07NOM-019Argentina IEC60950-1Japan VCCI, Class AAustralia/New Zealand AS/NZS CISPR 22:2009, Class AIEC-60950-1:2001 (CB Certificate and CB Test Report)Taiwan BSMI CNS 13438, Class A; CNS 14336-1China CCC (4943-2001), GB 9254-2008 Class A, GB 17625.1:2003Korea KN22, Class A; KN24Russia/GOST ME01, IEC-60950-1, GOST R 51318.22-99, GOST R 51318.24-99, GOST R51317.3.2-2006, GOST R 51317.3.3-2008IEC 60950-1 (CB Certificate and CB Test Report)CE Mark (EN55022 Class A, EN60950-1, EN55024, EN61000-3-2, EN61000-3-3)CISPR 22, Class ATUV-GS (EN60950-1 /IEC60950-1,EK1-ITB2000)External disk storage expansionThe server supports attachment to EXP3000 external storage expansion enclosures using the ServeRAIDM5025 SAS/SATA Controller. The server can also be attached to supported external storage systems,such as the IBM System Storage® DS3500 series, as described in the next section below.The ServeRAID M5025 has the following specifications:Two Mini-SAS external connectorsSupports RAID levels 0, 1, 5, 10, and 50Supports RAID 6 and 60 with the optional M5000 Advanced Feature KeyPerformance optimization for SSD drives with optional M5000 Series Performance Accelerator Key6 Gbps throughput per portPCI Express 2.0 x8 host interfaceBased on the LSI SAS2108 6 Gbps ROC controller512 MB of onboard cacheIntelligent Li-Ion-based battery backup unit with up to 48 hours of data retentionFor more information about the M5025, see theServeRAID M5025 SAS/SATA Controller for IBM Systemx Product Guide: http://www.redbooks.ibm.com/abstracts/tips0739.html?OpenThe ServeRAID M5025 supports connectivity to the IBM System Storage external expansion enclosureslisted in the following table. Up to nine expansion enclosures can be daisy-chained per one M5025external port. For better performance, distribute expansion enclosures evenly across both M5025 ports.