Avago Technologies MegaRAID SAS 8344ELP - Manual

26095-00 December 2006 1 of 2
Rel. 1.0 Copyright © 2006 LSI Logic Corporation. All rights reserved.
®
Cable Length Information for the
MegaRAID
®
SAS 8344ELP RAID
Controller
Addendum
The external cables from the MegaRAID SAS 8344ELP RAID controller
to the storage enclosure may not be longer than two meters. This
limitation applies to the MegaRAID SAS 8344ELP RAID controller only.
The cable length limit is caused by the placement of the I/O controller
engine on the SAS 8344ELP. There are approximately nine inches of
PCB trace (electrical lines on the controller) between the I/O engine and
the external connector. This is equivalent to nine feet, or 2.7 meters, of
external cabling.
Figure 1 shows the cable connection to the controller.
In addition, using a x4 or x1 fan-out cable to connect from the x4 external
connector on the RAID controller to a SATA drive is not supported. This
type of connection is supported on the internal port. However, SATA
drives in an expander-based enclosure are supported with the same
limitations as SAS drives (two meters).
Figure 1 Cable Connection for the MegaRAID SAS 8344ELP
RAID Controller