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Feature Benefits
Host interface intermix Support for intermixing FC and iSCSI interfaces allows for cost-
effective SAN tiering
Balanced performance Equally adept at input/output operations per second (IOPS) and
MBps, DS3950 is able to support applications with wide-ranging
performance requirements
Well suited for data warehousing, consolidation and
virtualisation environments that have diverse workloads and
application requirements
Designed to concurrently support transactional applications,
such as databases and online transaction processing (OLTP),
and throughput-intensive applications, such as high performance
computing (HPC) and rich media
Up to 112 intermixed drives
Supports intermixing of FC, FC-SAS and SATA disk drives for
tiered storage
FC disks can be allocated to applications that demand high
performance and have high input/output (I/O) rates; less-
expensive SATA disks can allocated to applications that require
less performance. In addition, FC-SAS disks can help ensure
data integrity with support for the T10 Protection Information
(T10-PI) standard
Enclosure-based intermixing helps maximise efficiency
Built-in efficiencies Modular design avoids over-configuration for an affordable,
entry-point price while offering seamless 'pay-as-you-grow'
scalability as requirements change
Efficient utilisation lowers raw capacity requirements, and
support for intermixing high-performance and high-capacity
drives enables tiered storage
Exceptional per-drive performance creates performance value
Feature Benefits
by getting the most performance out of the fewest drives
IBM System Storage DS Storage Manager software
Feature-rich storage management software enables maximum
utilisation and uninterrupted data availability
Configuration flexibility supports custom LUN tuning to ensure
maximum performance or utilisation
Centralised management of all local and networked based
systems
Quickly configure and monitor storage from a centralised
interface
Configure volumes, perform routine maintenance and add new
enclosures and capacity without interrupting access to data
Dynamic expansion capabilities
Designed to offer the ability to bring unused storage online for a
new host group or an existing volume to provide additional
capacity on demand
Designed to eliminate application interruptions due to growth,
reconfigurations or tuning
Up to 128 partitions Effectively support medium-scale consolidation or virtualisation
environments – thus helping to reduce hardware and storage
management costs
Fully-integrated replication features
Multiple replication options allow administrators to deploy the
one that best fits their needs
Local or remote copies can be used for file restoration, backups,
application testing, data mining or disaster recovery
Support for heterogeneous, open operating systems
Support for Microsoft® Windows®, UNIX® and Linux® systems
enables the storage system to operate in a variety of open-
system environments
Feature Benefits
Custom exclusive or (XOR) engine for RAID-parity calculations
Efficiently handles compute-intensive parity calculations
enabling exceptional disk-based performance that’s ideally-
suited for RAID 5 and RAID 6 configurations
Support for multiple RAID levels; including RAID 6
Designed to support high availability and security for mission-
critical data
Offers flexibility to configure the system to address varying
service levels
Redundant, hot-swappable components
Designed to maintain data availability by allowing components to
be replaced without stopping I/O
Persistent cache backup
Ensures any data in cache is captured and safe in the event of a
power outage
Up to four 8 Gbps FC host ports
Designed to deliver high bandwidth for the most demanding
applications
Provides up to 3,200 megabytes per second (MBps) cache burst
rate for high-throughput applications through the four channels
Backward compatibility with 2 Gbps and 4 Gbps devices
Plan for the future while leveraging current investments
Auto-negotiate connection speed to ease configuration in mixed
environments
Up to 112 FC drives Upgrade from a workgroup SAN to an enterprise network
storage system with a single DS3950 Express
T10-PI data integrity Help assure customers with ultra-sensitivity to data validation
that every I/O is safeguarded every step of the way, from
application to disk
Feature Benefits
Dynamic capacity expansion
Add EXP395 enclosures to an existing DS3950 Express without
stopping operations
Bring unused storage online for a new host group or an existing
volume to provide additional capacity on demand
Dynamic volume expansion
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