The IBM DS3500 Express storage system is an entry level storage system from IBM. The DS3500 offering is targeted for usage with System x, BladeCenter, and Power systems. The DS3500 is capable of scaling to mid-range capacity and performance but is targeted at entry level pricing. The IBM DCS3700 Express storage system is a mid-tier storage system from IBM. The DCS3700 offering is targeted for usage with System x, BladeCenter, and Power systems. An enhanced version is offered called the DCS3700+ that can have more cache, interfaces, and disks installed. The DCS3700 can scale from a single module 60 drive system to 180 disks (360 for DCS3700+). The DCS3700 is the turbo model of the DS3500 in the 60 drive package sourced from NetApp Engenio.
The IBM DS3500 and DCS3700 storage systems support multiple interfaces with pluggable modules for host interface connections including 8 Gb/s Fibre Channel, 6Gb/s SAS and 1Gb/s and 10 Gb/s Ethernet. The IBM systems consist of two controllers with pluggable Host Interface Cards (HIC). Each controller supports one 6 Gb/s disk drive expansion port. The controllers have dual RJ45 Ethernet 10/100 BaseT connectors and serial management and configuration ports. All Fibre Channel ports are small form factor plugs (SFPs) connector interfaces. The battery for data and cache protection uses a long life (lithium Ion) battery. The controller enclosure has customer replaceable units (CRUs) that consist of two controllers and two power/cooling modules (rear).
Storage expansion enclosures attach to the controller enclosure.
Product Brief for IBM DS3500/DCS3700 includes:
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