Dell PowerVault 221S Optimizing Dell SCSI Solutions - Page 14

A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 3. Dell's Product Offering PowerVault™ 220S & 221S Storage Enclosure Dell™ PowerVault 220xS systems are flexible, external SCSI expansion enclosures designed to support multiple Dell storage environments and RAID configurations. Each system offers maximized drive-spindle count, hot-plug hard drives, optional redundant power, redundant cooling, rack mount capability, systems management features, and a modular design for easy upgrades. Most major components, including hard drives and power supply/cooling modules are hot-pluggable and can be removed and replaced easily. The PV22xS is available as two model types: the PV220S which fits within an industry standard 19 inch rack, and the PV221S which is a free standing floor tower. Both models leverage the same base mechanical frame, but differ with respect to the mounting hardware and front bezel features. Dell offers a conversion kit to change from a PV220S to a PV221S. Basic features and options common to both models are shown in Figure 3-1. PowerVault 220S/221S Storage Arrays Performance ƒ U320 SCSI speed ƒ dual channel PCI-Express PERC 4 U320 controller Capacity ƒ 4.2TB with 300GB hard drives ƒ Up to 32 disks per virtual disk Scalability ƒ Up to eight enclosures per server ƒ Scales up to 32TB per server Manageability ƒ Robust RAID management ƒ Fully integrated solution Affordability ƒ Lower cost than Fibre Channel ƒ Low cost non-redundant configs PV 220S Rack SCSI Storage Array PV 221S Tower SCSI Storage Array FEATURES ƒ Up to 14 1" SCSI U160 SCSI hard disk drives ƒ 73GB, 146 & 300GB 10K RPM or 18GB, 36GB & 73GB 15K RPM disks ƒ Supports RAID 0, 1, 5, 10, 50 with PERC 3 or PERC 4 RAID cards ƒ 3+1 Fan Redundancy, optional redundant power supply ƒ Supports cables up to 12 meters from host server ƒ Configurable in joined bus, split bus or cluster mode ƒ Leverages PERC 3 U160 or PERC 4 RAID controller card ƒ Allows 32 hard disk drive per virtual disk ƒ Up to forty (40) virtual disks per controller ƒ Dual channel and Quad Channel ƒ Host clustering support (Microsoft Cluster Support) ƒ Externally accessible Ultra3 (Ultra160) or Ultra 320 (U320) SCSI ƒ 3U form factor for rack dense environments Figure 3-1 PV22xS Enclosure Features and Options PERC - PowerEdge™ RAID Controllers The PowerEdge RAID Controller (PERC) is a high-performance, intelligent peripheral component interconnect (PCI) and PCI-Express to Small Computer System Interface PAGE 14 11/17/2005