Iron Systems, Inc.- Customer IT Server Company

Buy DAS Array (RAID/JBOD)

	DAS-RAID Storage Array w/Fibre Host (SAN Ready)	DAS-RAID Storage Array w/SAS Host	DAS-JBOD Storage Expander w/SAS Host	DAS-RAID Storage Array w/SCSI Host

Performance:	Host Channel Bandwidth: 4G Bits/s Disk Channel Bandwidth (SATA/SAS): 3G Bits/s Topology: Shared, Token-Ring/Shared Bus Throughput (Sequential): RAID-5 or 10: Single Channel: 400 MB/sec Dual* Channel : 800 MB/sec IOPS (Sequential): RAID-5 Read: 34,000+ RAID-5 Write: 30,000+ Note: It support port aggregation* (max two), back at OS/Driver level through software RAID. RAID-10 IOPS will more than double the performance of RAID-5	Bus Bandwidth: 12G Bits/s Disk Channel Bandwidth (SATA/SAS): 3G Bits/s Topology: Serial, Point to Point Throughput (Sequential): RAID-5 or 10 800 MB/sec IOPS (Sequential): RAID-5 Read: 34,000+ RAID-5 Write: 30,000+ Note: SAS uses Wide Ports, Scalable Bandwidth. It is point to point at 300MB/s and Full Duplex. SAS implements wide lanes at the port layer and is transparent to the driver level. RAID-10 IOPS will more than double the performance of RAID-5		Bus Bandwidth: 3.2G Bits/s Disk Channel Bandwidth (SATA/SCSI): 3G Bits/s Topology: Parallel Throughput (Sequential): RAID-5 or 10 320 MB/sec Note: SCSI uses Wide Ports, Scalable Bandwidth. RAID-10 IOPS will more than double the performance of RAID-5
Expansion:	One 4x mini SAS port for JBOD Expander. Daisy-Chain Up to 3 JBOD (3 x 16 = 48 disks) Expanders.	One 4x mini SAS port for JBOD Expander. Daisy-Chain Up to 3 JBOD (3 x 16 = 48 disks) Expanders.	Each JBOD Extender w/ 16 drives Host Server would require RAID PCie HBA Attach up to 3 (48 disk drives) additional JBOD’s Extenders. Total drives supported by DAS + 3x JBOD = 64 Drives.	One 4x mini SAS port for JBOD Expander. Daisy-Chain Up to 3 JBOD (3 x 16 = 48 disks) Expanders.
Scalability:	Usage of Fibre interface allows utilizing SAN Capabilities for host connectivity and enterprise grade scalability; recommended for scalability ( large deployments).	Usage of SAS interface is only recommended when higher transfer rate than Fibre is desired such as high performance database. SAS is expandable but not scalable.	SAS or/and SATA Drives Support.	Usage of SCSI interface is not recommended as SAS is a better option with higher transfer rate.
Disk per Box:	16 x 3.5” SAS or SATA-2 ; Supports 1TB SATA-2 Disks	16 x 3.5” SAS or SATA-2 ; Supports 1TB SATA-2 Disks	16 x 3.5” SAS or SATA-2 ; Supports 1TB SATA-2 Disks	16 x 3.5” SAS or SATA-2 ; Supports 1TB SATA-2 Disks
Specifications:	Operating System: Platform Independent RAID Controller: 2x 4G Bits/s Fibre Port + 1 x Mini-SAS 2GB Cache w/Battery Backup
Model:	SD250-3F	SD250-33	SD250-3	3163SA
MSRP:	$ 7,649 (Disks Extra)	$ 6,849 (Disks Extra)	$ 3,499 (Disks Extra)	$ 5,849 (Disks Extra)


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