LSI Corporation
- 5 -
LSI Nytro MegaRAID Application Acceleration Card User Guide
August 2012
Overview of the LSI Nytro MegaRAID Card
Overview
These cards address the growing demand for increased data throughput in database applications, cloud computing,
and data centers. These cards provide:
A four-lane mini-SAS connector for internal disk connection to 6.0 Gb/s SAS/SATA hard disk drives or internal drive
bay connection
An eight-lane, PCI Express 2.0 host interface
Nytro Flash module - up to 1TB capacity (2 Nytro Flash modules)
Flash volumes for caching
— Nytro Flash modules automatically configured to single Nytro cache drive by default
— Existing and new Nytro cache drives automatically assigned for caching
Optional SuperCap connection to protect DRAM content in the event of power failure
Caching lightens the HDD load so that HDD RAID rebuilds complete faster and removes traditional HDD head
wear from accessing small block requests typical in database environments
The Nytro MegaRAID card provides accelerated performance and improved manageability to MegaRAID with its two
embedded Nytro Flash modules. The Nytro MegaRAID card uses Nytro Flash memory in front of the connected hard
disk drive (HDD) volumes to create high-capacity and high-performance acceleration cache pools.
The Nytro MegaRAID card is based on the LSISAS2208 RAID On-a-Chip (ROC). This device is compliant with the Fusion-
MPT™ architecture and provides a PCI Express x8 interface.
The Nytro MegaRAID card provides enterprise class data protection and transparent performance acceleration to
direct-attached SCSI storage volumes. The card provides reliability, high performance, and fault-tolerant drive
subsystem management. Performance acceleration is powered by intelligent caching using the onboard
Nytro Flash module.
1.1.1 Key Features and Benefits of the Nytro MegaRAID Card
Automatic self-starting and self-configuring
Supports Read and Write caching
Transparent to applications, file systems, OSs, and device drivers
Provides an economical solution for accelerating applications — by storing frequently accessed data on low
latency Nytro Flash modules while existing SAS or SATA connected hard drives to achieve a balance of
performance and cost savings
Uses Nytro Flash module reducing compatibility issues
Specialized server off load processors include the LSISAS2208 dual core RAID-on-Chip process and two LSI
SandForce® SF-2582 Nytro Flash modules
MD2 Low profile (6.6" X 2.536")
x8 PCI Express 2.0 host interface
RAID level support for Nytro Flash modules as RAID 0 or RAID 1
— RAID1 is enabled when the user enables the write-back mode of the cache
— On initial power up, the card auto configures as Nytro Cache Drive Group 0, RAID 1, Write Back configuration
RAID level support for hard disk drives
— RAID levels 0, 1, 5, and 6
— RAID spans 10, 50, and 60
Internal drive bay support
JBOD mode support
NOTE You need to carefully assess any decision to mix SAS drives and SATA drives within the same virtual drive
(VD). Although you can mix drives, this practice is strongly discouraged because the drives have different
performance and reliability characteristics.
(48 paginas)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comentarios a estos manuales