7 hardware specifications, Hardware specifications, Megaraid controller comparisons – Avago Technologies MegaRAID SAS 8204ELP User Manual

Page 33: Section 1.7, “hardware specifications

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Hardware Specifications

1-17

Copyright © 2005-2007 by LSI Logic Corporation. All rights reserved.

1.7

Hardware Specifications

You can install the RAID controllers in a computer with a system board
that has a PCI Express slot.

Table 1.2

describes the hardware

configuration features for the MegaRAID SAS controllers.

Table 1.2

MegaRAID Controller Comparisons

Specification

MegaRAID SAS 8208ELP, MegaRAID SAS 8208XLP,
MegaRAID SAS 8300XLP, MegaRAID SAS 8304ELP,
MegaRAID SAS 8308ELP, MegaRAID SAS 8344ELP,
MegaRAID SAS 8408E, MegaRAID SAS 8480E and
MegaRAID SAS 84016E RAID Controllers

RAID levels

0, 1, 5, 10, and 50

Devices supported
per port

1 SAS device or SATA II device for each port. The
device can be a physical drive or an expander. If an
expander, the controller can access more than one drive
through that port-expander connection.

Ports

• MegaRAID SAS 8204ELP RAID controller – Four

internal

• MegaRAID SAS 8208ELP RAID controller – Eight

internal

• MegaRAID SAS 8204XLP RAID controller – Four

internal

• MegaRAID SAS 8208XLP RAID controller – Eight

internal

• MegaRAID SAS 8304ELP RAID controller – Four

internal

• MegaRAID SAS 8308ELP RAID controller – Eight

internal

• MegaRAID SAS 8344ELP RAID controller – Four

internal, four external

• MegaRAID SAS 8408E RAID controller – Eight

internal

• MegaRAID SAS 8480E RAID controller – Eight

external

• MegaRAID SAS 84016E RAID controller – 16

internal

Data transfer rate

Up to 3 Gbits/s per PHY

Bus

PCI Express 1.0a; PCI-X 1.0a

Cache function

Write-back, write-through, adaptive read ahead,
non-read ahead, read ahead, cache I/O, direct I/O

Multiple virtual disks/
arrays per controller

Up to 40 virtual disks for each controller or for each
logical array

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