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1.6.2
SAS Array Limitations
Table 1.1
SAS RAID Controller Array Limitations
Specification
Maximum virtual
drives per controller
Maximum drive groups
per controller
Maximum virtual
drives per drive group
Maximum drives per
drive group
•
Supports STP to enable communication with a SATA II device
through an attached expander
•
Provides a serial, point-to-point, enterprise-level storage interface
•
Simplifies cabling between devices
•
Provides a scalable interface that supports up to 240 devices through
the use of expanders
Note:
The number of devices varies depending on the MegaRAID
product. Check the LSI web site (http://www.lsi.com) for
specific details about your product.
•
Supports wide ports consisting of 2, 3, or 4 PHYs within a single
quad port
•
Supports narrow ports consisting of a single PHY
•
Transfers data using SCSI information units
This section describes the array limitations of the MegaRAID 6Gb/s SAS
RAID controllers. These limitations include the number of drives
supported per controller, the maximum number of drives per controller,
and the maximum number of virtual drives allowed per controller.
Table 1.1
lists the array limitations for the 6Gb/s SAS RAID controllers.
16
16
8
8
16
16
16
16
Summary of SAS RAID Controller Characteristics
Copyright © 2009 by LSI Corporation. All rights reserved.
64
64
64
16
16
16
16
16
16
32
32
32
64
64
16
16
16
16
32
32
1-11
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