DellPowerEdge T610 Technical Guide 39o The remaining hard drives must be 3.5" hard drives and must be either all SAS orall SATA• Solid state drives (SSDs) require the PERC 6/i (PERC H700) integrated storage controller andcannot be mixed with any other type of hard drive12.2.1 Hard Disk Drive CarriersThe T610 supports the Dell 2.5" and 3.5" hard drive carriers. See Figure 9.Dell 2.5” Hard Drive CarrierFigure 9.12.2.2 Empty Drive BaysFor the slots that are not occupied by drives, a carrier blank is provided to maintain proper cooling,maintain a uniform appearance to the unit, and provide EMI shielding.The T610 does not support diskless configuration.12.2.3 Hard Drive LED IndicatorsEach disk drive carrier has two LED indicators visible from the front of the system. One is a green LEDfor disk activity and the other is a bicolor (green/amber) LED for status information. The activity LEDis driven by the disk drive during normal operation. The bicolor LED is controlled by the storageenclosure processor (SEP) device on the backplane. Both LEDs are used to indicate certain conditionsunder direction of a storage controller.For more information, see the Hard-Drive Indicator Patterns section in the About Your System chapterin the Dell PowerEdge T610 Systems Hardware Owner’s Manual on Support.Dell.com.12.3 RAID ConfigurationsSee Table 12 for information on factory RAID configurations. For information on additionalconfigurations, visit Dell.com.