LSISASX12 LSI, LSISASX12 Datasheet - Page 16

• Manufacturer Part Number: LSISASX12
• Manufacturer: LSI

Specifications of LSISASX12

• Lead Free Status / Rohs Status: Not Compliant

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1. In the rest of this document LSISASx12 refers to both the LSISASx12 expander and the
LSISASx12A expander unless specifically noted.
The LSISASx12/LSISASx12A expander manages connection requests
between end devices and/or other expanders, and supports the Serial
SCSI Protocol (SSP), the Serial ATA Tunneled Protocol (STP), the Serial
Management Protocol (SMP), and the LSISASx12/LSISASx12A supports
SATA as defined in the Serial ATA: High Speed Serialized AT Attachment
Specification, version 1.0a. The expander includes an SMP target and an
enclosure management bridge. The expander supports direct, table, and
subtractive routing modes. LSI Logic produces the
LSISASx12/LSISASx12A expander using the Gflx
Each of the 12 phys on the LSISASx12 expander supports SAS transfers
of up to 3.0 Gbits/s and SATA transfers of up to 1.5 Gbits/s. Each of the
12 phys on the LSISASx12A expander supports SAS transfers of up to
3.0 Gbits/s and SATA transfers of up to 3.0 Gbits/s. The SASx12A is a
pin-compatible upgrade from the LSISASx12 for those customers
requiring 3.0 Gbits/s SATA data transfers and/or enhanced serial GPIO
(SGPIO) support.
There are two major differences between the LSISASx12 and the
LSISASx12A expanders.
The LSISASx12/LSISASx12A 12-port SAS expander offers high
performance, high disk drive connectivity, scalability and flexibility in
various storage environments as an alternative to today’s expensive and
complex offerings. The LSISASx12/LSISASx12A
for high availability and scalable server clustering environments and
front-end storage subsystems used in clusters, SANs, and NAS
environments. LSI Logic SAS expanders are ideal for data centers and
Storage Area Networks, leveraging existing SCSI infrastructure for
investment protection and ease of migration and implementation.
Introduction
Copyright © 2004, 2005 by LSI Logic Corporation. All rights reserved.
ALIGN transmission from expanders
The LSISASx12A supports 3.0 Gbit/s SAS and SATA connections,
whereas the LSISASx12 supports only 1.5 Gbit/s SATA connections.
The LSISASx12A provides enhanced SGPIO support which enables
additional data modulation control for blink rates and patterns as well
as programmable on/off times for LED/GPIO activity.
1
SAS expander is ideal
™
(0.11 m) process.