Chelsio Communications Chelsio T5 User's Guide download pdf (Page 109)

Chapter VII. iSCSI PDU Offload Target

Chelsio T5/T4 Unified Wire For Linux Page 109

4. Software/Driver Configuration and Fine-tuning

The Chelsio iSCSI software needs configuration before it can become useful. The following

sections describe how this is done.

There are two main components used in configuring the Chelsio iSCSI software: the

configuration file and the iSCSI control tool. This section describes in some detail what they

are and their relationship they have with one another.

4.1. Command Line Tools

There are two command line tools, one for control of the iSNS client and one for control of the

iSCSI target nodes.

4.1.1. iscsictl

The Chelsio iSCSI control tool, iscsictl, is a Command Line Interface (CLI) user space

program that allows administrators to:

Start/Stop the iSCSI Target

Start the iSNS client

Get/Set the iSCSI driver global settings

Get/Set/Remove the iSCSI Target configuration settings

Retrieve active sessions’ information of an iSCSI Target

Manually flush data to the iSCSI Target disks

Reload the iSCSI configuration file

Update the iSCSI configuration file

Save the current iSCSI configuration to a file

4.1.2. chisns

The Chelsio iSNS client, chisns, can be started independently of iscsictl.

4.2. iSCSI Configuration File

The iSCSI configuration file is the place where information about the Chelsio iSCSI software is

stored. The information includes global data that pertains to all targets as well as information on

each specific iSCSI target node. Most of the information that can be placed in the configuration

file has default values that only get overwritten by the values set in the configuration file.

There are only a few global configuration items that can be changed. An example is

“iscsi_offload_mode” which specifies the hardware protocol offload method that should be used

(e.g. “TOE”, “ULP”, or “AUTO” modes) for all iSCSI targets.

1 2 ... 104 105 106 107 108 109 110 111 112 113 114 ... 451 452

No comments

Chelsio Communications Chelsio T5 User's Guide Page 109