Terminology Used In This Document
The following terminology is used in this document.
chassis |
The Sun Blade 6000 Modular
System enclosure. |
CMM |
Chassis Monitoring Module. An Integrated Lights Out Manager component of the Sun
Blade 6000 Modular System used to access and manage servers and storage modules
in the chassis. |
multipath |
This is a dual path connection from a host to
the storage module. Provides two paths to the storage components in the storage
module for failover. Path failover is managed through REM firmware when you create
logical drives using the REM firmware utilities. |
NEM |
Network Express Module. A networking I/O component
that plugs into a Sun Blade Modular System chassis. The chassis contains two
NEM slots: NEM 0 and NEM 1. |
REM |
A RAID Expansion Module. Also referred to
as a Host Bus Adapter (HBA), or an initiator. Acts as an interface
between the host and connected storage. Supports the creation of RAID volumes on
connected storage. Provides disk management and monitoring of connected storage. |
SAS–2 |
Serial Attached SCSI version
2. Supports up to 6 Gb/s data transfer rate. The combination of SAS-2
devices, such as REMs, NEMs and storage modules inside the chassis creates a
SAS–2 domain connecting shared storage to servers. Access to the chassis SAS-2 domain
is managed by the CMM. |
SAS-2 NEM |
Any Network Express Module that supports SAS–2 connectivity.
Only NEMs that support SAS-2 can be used with the Sun Blade Storage
Module M2. For example, the Sun Blade 6000 Virtualized Multi-Fabric 10GE NEM M2. |
SAS target |
A
device containing logical units and target ports that receives requests from, and responds
to, an initiator. An example of a target device is a hard disk.
Other terms used to describe a SAS target are “device” and “end device.” |
SATA |
Serial
ATA (or Serial Advanced Technology Attachment). Supports up to 1.5Gb/s data transfer rate
for SATA and 3Gb/s for SATA-II. SATA devices are single port/single path. |
server module |
A Sun
Blade server module that fits in the Sun Blade 6000 Module System. Server
modules use storage in the storage module. Might also be known as
a ”host”, “blade” or a “server blade”. |
single path |
This is a single path connection from
a host to the storage module (for example, if there is only one
NEM in the chassis, or the target device is SATA). No path failover
is available. |
storage module |
The Sun Blade Storage Module M2. Might also be known as
a “disk module” or a “disk blade”. |
zoning |
Zoning in SAS-2 is a mechanism to
manage large SAS topologies. Zoning is used to partition the chassis SAS–2 domain
into smaller groups and provides the mechanism necessary to manage these groups. The
storage module uses PHY resolved zoning. Each SAS-2 expander PHY is assigned to
a zone group including any device attached to that PHY. The expander contains
a permission table that defines access control between devices in each zone group
(by default, all devices within a zone group can interact with each other).
Refer to the SAS-2 specification for more details. |
|