74 PERC 3/ QC Feat uresw w w . d e l l . c o m | s u p p o r t . d e l l . c o mHardware RequirementsPERC 3/QC is a high-performance intelligent peripheral componentinterconnect (PCI)-to-SCSI host adapter with RAID control capabilities.PERC 3/QC has four SCSI channels that support 160M and Wide SCSI atdata transfer rates up to 160 MB/s. Each SCSI channel supports up to 15Wide devices or up to seven narrow devices.PERC 3/QC can be installed in a system with a motherboard that has 5 V,32- or 64-bit PCI expansion slots. The system should have an Intel ®Pentium ® II or higher central processing unit (CPU), a diskette drive, acolor monitor, video graphics adapter (VGA) card, and a keyboard. A mouseis recommended.Configuration FeaturesTable 6-1 lists the PERC 3/QC configuration features.Ta b l e 6 - 1 . C o n f i g u r a t i o n Fe a t u r e sSpecification FeatureRAID levels 0, 1, 5, 10, and 50SCSI channels 4Maximum number of drives per channel 15Array interface to host PCI 2.2Drive interface Wide 160MCache memory size 128 MB DIMMCache function Write-back, write-through, adaptiveread-ahead, non read-ahead, read-aheadMultiple logical drives/arrays percontrollerUp to 40 logical drives per controllerMaximum number of PERC 3/QCcontrollers per systemContact your Dell™ representative.Online capacity expansion YesDedicated and pool hot spare YesFlashable firmware Yes
