Lenovo S2200 Product Manual page 3

The S2200 storage system offers high levels of system and data availability with the following
technologies:
Dual-active RAID controllers with low latency cache mirroring

Dual-port drives (HDDs and SSDs) with automatic drive failure detection and rapid RAID rebuild with

global hot spares
Redundant hardware, including host ports, controller modules, and power supplies and fans

Hot-swappable and customer replaceable components, including controllers, power supplies with

fans, and drives
Automated path failover support for the data path between the host and the drives with multipathing

software
Non-disruptive controller firmware upgrades for dual controller configurations with multipathing

The following functions are included with every S2200:
Intelligent Real-time Tiering for HDDs

Storage tiering helps optimize storage use with intelligent data placement to improve system
performance, reduce costs, and simplify management. S2200 automatically and dynamically moves
frequently accessed data to higher performing HDDs in the system without manually creating and
managing storage tier policies.
RAID levels 0, 1, 5, 6, and 10

Provide the flexibility to choose the level of data protection that is required.
Virtualized storage pools

Enables rapid, flexible storage provisioning and simple configuration changes. Stored data is
distributed across all drive groups in the pool (wide striping), which helps improve performance, lower
latency, and achieve higher volume capacities. When a new drive group is added to the pool, the
system performs automatic rebalancing to use all drives in the pool for better performance.
Thin provisioning

Optimizes efficiency by allocating drive storage space in a flexible manner among multiple
applications that is based on the minimum required space by each application at any specific time.
With thin provisioning, applications use only the space they are actually using and not the total space
that was allocated to them, which allows clients to purchase storage they need today and add storage
as application requirements grow.
SSD Read Cache

An extension of the controller's cache to improve performance of read-centric workloads.
Rapid RAID Rebuild

Helps significantly decrease the time to recover lost data by rebuilding only the stripe where the
corruption occurred, not the empty space or other stripes.
Snapshots

Enables creation of copies of data for backup, parallel processing, testing, and development, and
have the copies available almost immediately. Base software supports up to 64 snapshot targets per
system.
Lenovo Storage S2200 3