Specifications

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iv ATTO Technology Inc. ATTO ExpressSAS Host & RAID Adapter Installation and Operation Manual

Adapter Management

On VMware ESX/ESXi you can identify and manage ATTO adapters using the VMware vSphere Client, or the

Service Console. On ESXi, the Service Console is referred to as Local Tech Support Mode.

vSphere Client

With VMware vSphere Client, you can identify ATTO

adapters on a VMware ESX/ESXi system, and view

the attached storage devices.

1 Start vSphere Client from your local workstation

and select the host containing one or more

ATTO adapters.

2 Click the Configuration tab, and then select

Storage Adapters under Hardware in the left

pane.

3 A list of all storage adapters in the system is

displayed. The Model, Identifier (SAS address)

and Targets are shown for each adapter

channel.

Service Console

Using the Service Console, information about each

adapter channel can be found in the /proc/scsi

filesystem, under /proc/scsi/<driver name>.

To view details on a specific adapter channel, run the

following command:

# cat /proc/scsi/<driver name>/<channel>

This command displays the following information:

• Adapter type

• Driver, BIOS and Firmware versions

• Driver Parameters

• Adapter Model and Identifier (WWN or SAS

address)

• Virtual Port Information

• Discovered Targets

• Driver Statistics

A sample output is shown below:

~ # cat /proc/scsi/esas2hba/6

ATTO ExpressSAS 6GB Adapter

Driver version 1.60b1

Flash version 09/27/2011

Firmware version 1.16.16

http://www.attotech.com

num_targets Maximum number of target devices. Default is 256.

old_device_reset Use the old device reset method. Default is 0 (use

new method).

sg_tablesize Maximum number of entries in a scatter/gather

table. A value of 255 means that the S/G table be

any size. Default is 255.

sgl_page_size Scatter/Gather List page size in number of S/G

entries. Default is 128.

use_tm_completions Wait for task management commands to complete

before returning from handler. Default is 1

(enabled).

use_transport_layer Attached to the SCSI transport layer. Default is 1

(enabled).

PARAMETER DESCRIPTION