Jbod2000S3Sp External Sas Connection Mode Overview; External Sas Controller Support; External Sas Cable; Figure 26. Sff-8644 Mini-Sas Cable - Intel JBOD2312S3SP Hardware Manual

Table of Contents

7 JBOD2000S3SP

Overview

The Intel

Storage System JBOD2312S3SP supports connection to many different external SAS HBA and

SAS RAID controller solutions, to achieve single JBOD connection, multiple JBODs daisy chain connection,

and failover connections. This section provides an overview of the different options available.

Our current and future supported controllers are referenced via our JBOD2000S3SP THOL or SCT.

SAS connectivity is via the external SAS connectors (SFF8644); both native SAS HBAs and RAID HBAs are

supported.

JBOD2000S3SP system uses SFF-8644 mini-SAS receptacle, so SFF-8644 mini-SAS cable is needed when

connecting the JBOD2000S3SP to host or cascading to other JBOD2000. The following figure is an

illustration of SFF-8644 mini-SAS cable.

According to SAS 3.0 specification, the length of mini-SAS cable has the following rules:

The 12Gb/s SAS cables work up to 10 meters with DFE (decision feedback equalization).



The 12Gb/s SAS cables run at less than 6 meters without DFE.



The 6Gb/s SAS deployments are limited to cable length of 6 meters.



The 3Gb/s SAS deployments are limited to cable length 6 meters.



The standard package of JBOD2000S3SP system doesn't contain external cables (you need to order the

cable from other vendors). Intel has tested some models of the mini-SAS HD cable (see Appendix A for the

list). However, the mini-SAS HD cables that JBOD2000S3SP can support are not limited to that list; users can

qualify new cables by themselves.

Intel® Storage Server System JBOD2312S3SP Hardware Guide

External

SAS

Connection

Mode

Table of Contents