Datasheet

LSI® MegaRAID® CacheCade™ Pro 2.0
Read/Write Caching Software
Reduce Latency Bottlenecks for Server-based HDD Volumes
KEY BENEFITS
n Accelerates performance of existing
HDD arrays with small upfront
investment
n Read and Write caching of hot spot
data for signicant reduction in I/O
latency
n Optimized for real-world workloads of
transaction-intensive applications
n Uses less space and power compared
to adding short-stroked drive
spindles and unneeded capacity
n More cost eective than using all SSD
storage volumes in storage arrays
n Cached write data protected by
non-volatile CacheCade cache pools
(RAID 0, 1, 10) and data availability
protected by RAID data redundancy
n Simple, intuitive management tools
to assign and manage CacheCade
SSD pool
n Industry’s rst read and write
controller-based caching on SSDs,
dramatically enhancing performance
over the previous generation
CacheCade software.
LSI MegaRAID CacheCade Pro 2.0 read/write
software eliminates the need for manually
congured hybrid arrays by intelligently and
dynamically managing frequently-accessed
data and copying it from HDD volumes to a
higher performance layer of SSD cache (see
gure 1). Copying the most accessed data
(‘hot spot’) to ash cache relieves the primary
HDD array from time-consuming transactions
which allows for more ecient hard disk
Today’s workload-intensive business applications are often constrained by the perfor-
mance limitations of their existing hard disk drives (HDDs). With this type of storage
infrastructure already in place, it can be cost prohibitive to switch to a new array based
purely on solid state drives (SSDs). Although they are capable of many more transactions
per second than HDDs, SSDs have a very high cost per gigabyte and are not suited for
heavy, large le workloads. The key to accelerating the performance of existing HDD ar-
rays without making substantial investments in new hardware is to deploy LSI MegaRAID
CacheCade software which leverages SSDs in front of HDD volumes to create high-
capacity, high-performance controller cache pools.
operation, reduced latency, and accelerated
read and write speeds. This provides
signicant improvements to overall system
performance -- two to twelve times that of
HDD-only congurations –for a wide variety
of server applications including web, le,
online transaction processing (OLTP) database,
data mining and other transaction-intensive
applications.
Figure 1: CacheCade Pro 2.0 software intelligently copies hot data to low latency, redundant SSD cache.
LSI MegaRAID CacheCade
Product Brief
CacheCade Pro 2.0 Cache Pool
Mirror
Hot
Data
Cold
Data