LSI Logic megaraid sas 9341-8i sgl [10/45] Sas features

LSI Logic megaraid sas 9341-4i kit [10/45] Sas features
Avago Technologies
- 10 -
12Gb/s MegaRAID SAS RAID Controllers User Guide
February 2015
Chapter 1: Overview
Summary of 12Gb/s MegaRAID SATA+SAS RAID Controller Characteristics
Support for global hot spares and dedicated hot spares
Support for user-defined strip sizes: 64 KB, 128 KB, 256 KB, 512 KB, or 1024 KB
NOTE MegaRAID does not support strip sizes smaller than 64 KB. However,
you can import virtual drives from legacy MegaRAID generations) that
use strip sizes smaller than 64 KB.
NOTE The MegaRAID SAS 9341-4i RAID controller and the MegaRAID SAS
9341-8i RAID controller support a stripe size of 64 KB only. The stripe
size for these two controllers cannot be changed.
Advanced array configuration and management utilities offer these capabilities:
Online capacity expansion to add space to an existing drive or a new drive
Online RAID level migration
Drive migration
Drive roaming
No reboot necessary after expansion
Load balancing
Media scan
User-specified rebuild rate (specifying the percentage of system resources to use from 0 percent to 100 percent)
NVSRAM of 32 KB for storing RAID system configuration information; the MegaRAID SAS firmware is stored in
flash ROM for easy upgrade.
1.6.1 SAS Features
The 12Gb/s MegaRAID SATA+SAS RAID controllers support the following SAS features:
They provide four fully independent PHYs or eight fully independent PHYs, depending on the controller.
They support 12Gb/s, 6Gb/s, and 3Gb/s SAS data transfers per PHY.
They support SMP to communicate topology-management information.
They support SSP to enable communication with other SAS devices.
They support STP to enable communication with SATA devices through an attached expander.
They provide a serial, point-to-point, enterprise-level storage interface.
They simplify cabling between devices.
They provide a scalable interface that supports up to 255 devices through the use of expanders.
NOTE The number of devices varies depending on the MegaRAID product.
Check the Avago website, http://www.avagotech.com, for specific
details about your product.
They support wide ports that consist of two, three, or four PHYs within a single quad port.
They support narrow ports consisting of a single PHY.
They transfer data by using SCSI information units.

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