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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

1 2

Inhaltsverzeichnis

Seite 1 - Read/Write Caching Software

LSI® MegaRAID® CacheCade™ Pro 2.0 Read/Write Caching Software Reduce Latency Bottlenecks for Server-based HDD VolumesKEY BENEFITSn Accelerates perfor

Seite 2 - Jetstress 2010

For more information and sales oce locations, please visit the LSI web sites at: lsi.com lsi.com/channelLSI, LSI & Design logo, MegaRA

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LSI LSI00290 Datenblatt

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Inhaltsverzeichnis

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