APC 15000 RAID User Manual

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Introduction
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Chapter  1
Introduction
The SGI InfiniteStorage 15000 controller is an intelligent storage infrastructure device designed and 
optimized for the high bandwidth and capacity requirements of IT departments, rich media, and high 
performance workgroup applications. 
The controller plugs seamlessly into existing SAN environments, protecting and upgrading investments 
made in legacy storage and networking products to substantially improve their performance, availability, 
and manageability. 
The controller’s design is based on an advanced pipelined, parallel processing architecture, caching, 
RAID, and system and file management technologies. These technologies have been integrated into a 
single plug-and-play device—the SGI InfiniteStorage 15000—providing simple, centralized, and secure 
data and SMNP management. 
The SGI InfiniteStorage 15000 is designed specifically to support high bandwidth, rich content, and 
shared access to and backup of large banks of data. It enables a multi-vendor environment comprised of 
standalone and clustered servers, workstations and PCs to access and back-up data stored in centralized 
or distributed storage devices in an easy, cost-effective, and reliable manner. 
Each controller orchestrates a coherent flow of data throughout the storage area network (SAN) from 
users to storage, managing data at speeds of up to 3000 MB/second (or 3 GB/second). This is 
accomplished through virtualized host and storage connections, a DMA-speed shared data access space, 
and advanced network-optimized RAID data protection and security—all acting in harmony with 
sophisticated SAS storage management intelligence embedded within the controller. 
The controller can be “coupled” to form data access redundancy while maintaining fully pipelined, 
parallel bandwidth to the same disk storage. This modular architecture ensures high data availability and 
uptime along with application performance. With its PowerLUN technology, the system provides full 
bandwidth to all host ports simultaneously and without host striping. 
1.1 Controller Features
The SGI InfiniteStorage 15000 controller incorporates the following features:
• Simplifies Deployment of Complex SANs 
The controller provides SAN administration with the management tools required for large number 
of clients.
• Infiniband or Fibre Channel (FC-8) Connectivity Throughput 
The controller provides up to four (4) individual double data rate four-lane Infiniband or FC-8 host 
port connections, including simultaneous access to the same data through multiple ports. Each IB 
host port supports point-to-point and switched fabric operation. 
• Highly Scalable Performance and Capacity 
The RAID engine provides both fault-tolerance and capacity scalability. Performance remains the 
same, even in degraded mode. Internal data striping provides generic load balancing across drives. 
The RAID engine can support from 10 drives minimum to 1200 drives maximum. Formatable 
capacity is drive capacity.