Chapter 2: Overview - Lenovo ThinkSystem RAID 930-24i Installation And User Manual

ThinkSystem RAID 930-24i Adapter Installation and User Guide
1st Edition

Chapter 2: Overview

2.1 Overview
The ThinkSystem RAID 930-24i 2GB PCIe 12Gb adapter, based on the LSISAS3508 RAID On-a-Chip (ROC) device and one
35X36R expander chip, is a high-performance PCIe-to-SATA/SAS adapter
Each adapter provides the following storage interface data transfer rates:
SAS data transfer rates of 12Gb/s, 6Gb/s, and 3Gb/s per lane

SATA data transfer rates at 6Gb/s and 3Gb/s per lane
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The adapter negotiates between the speeds and the protocols to recognize and concurrently interface with any of
these storage devices.
The following list summarizes many of the key features of the ThinkSystem RAID 930-24i PCIe 12Gb adapter.
Ports – 24 internal

I/O processor – LSISAS3508 RAID On-a-Chip (ROC) device and one 35X36R expander chip
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Form factor – Full-height/Half-length
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Storage interface connectors – Six SFF-8643 x4
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Host interface – x8 PCIe 3.1
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Storage interface – SAS and SATA
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Cache memory – 4GB 2133 MHz DDR4 SDRAM
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Cache protection – Yes
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Super capacitor – ThinkSystem RAID 930 Supercap
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2.2 RAID Features
The following list includes some of the primary RAID features supported by the storage adapter. For a full description
of the RAID features, refer to the ThinkSystem Storage Adapter Software User Guide on the Lenovo support web site at
http://support.lenovo.com
RAID levels 0, 1, 5, and 6
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RAID spans 10, 50, and 60
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Support for JBOD
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Online Capacity Expansion (OCE) online RAID Level Migration (RLM)
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Auto resume after loss of system power during array rebuild or reconstruction (RLM)
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Single controller multipathing
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Load balancing
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Configurable stripe size up to 1 MB
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Fast initialization for quick array setup
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Check Consistency for background data integrity
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Solid state drive (SSD) support with SSD Guard™ technology
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Patrol read for media scanning and repairing
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64 logical drive support
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Dynamic data formatting (DDF) compliant configuration on disk (COD)
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Self-monitoring, analysis, and reporting technology (S.M.A.R.T.) support
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for details.
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Chapter 2: Overview
Overview