Expressraid Displays Bus, Device, Volume; Device Window; Scsi Bus Information - ATTO Technology R30F Installation And Operation Manual

3 ExpressRAID Displays Bus, Device, Volume

The ATTO ExpressRAID Device Window displays busses, IDs and devices. The Volumes window
displays information about the volumes available.
The amount of information shown in the device
and volume windows depends on the settings. An
information button next to any item in either
window provides more information about that
item. Clicking on a device in the device window
highlights the associated volumes in the volume
window, and vice versa. Other choices may be
presented after clicking on certain items in either
window.

Device Window

On the left side of the ExpressRAID main window
is the device window. This window displays SCSI
and Fibre Channel busses, IDs and devices. Next
to each item is an information button. Clicking on
a device in the device window highlights the
associated volumes in the volume window. The
amount of information shown depends on the
setting chosen in the device window menu.
Device Window Menu
above the device window, presents three options.
❖Busses and Drives: Displays all SCSI and
Fibre Channel busses and hard drives
attached to them. Other devices which
ExpressRAID does not affect, such as CD-
ROM drives, tape drives and scanners, are
not shown in the device window when this
is selected.
❖Busses and Devices: displays all SCSI and
Fibre Channel busses and devices attached to
them. This setting is useful for determining
what devices are attached to your computer
and what IDs are available for additional
devices.
❖Busses and All IDs Displays all SCSI and
Fibre Channel busses and all IDs, whether a
device is at that ID or not. This option is most
useful when configuring individual IDs using the
ExpressPCI Configuration Options.
5 ATTO Technology ExpressRAID for Macintosh
The device window menu,

SCSI Bus Information

SCSI bus information is displayed in bold type.
Clicking on the triangle to the left displays or
hides a SCSI ID and the devices attached to it. The
information displayed includes the bus number,
bus manufacturer and the version number of the
bus, if available. Double click on a bus or click on
its information button to reveal more information
about that bus, including the bus version, width
and transfer speed. If the bus is an ATTO bus,
additional parameters are accessible.
ExpressPCI 3300/3305 models also have a Data
Rate field. Autonegotiate is the default. Choices
are autonegotiate, 1-gigabit or 2-gigabit.
Because of the way Fibre Channel and SCSI
translate IDs, a single Fibre Channel host adapter
will appear in the device window as eight separate
busses, allowing the ATTO ExpressPCI FC host
adapter to support the 126 IDs available in Fibre
Channel. There is really only a single host adapter
or bus, not eight. Changes made to any one of the
eight apparent busses will be made to the other
seven busses.
SCSI device ID information
❖SCSI address of the device, where X is the
bus number, Y is the SCSI ID Number and
Z is the Logical Unit Number.
❖Type of device at the address
❖Device manufacturer
❖Amount of drive space available to create
new volumes. A completely initialized
drive appears as having 0.0 MB free.
❖Double click on a SCSI ID or click on its
information button for more information
on the device ID, including drive vendor,
model number, capacity and partition
information. If the ID is on an ATTO bus,
additional parameters are accessible.