User`s guide

11 – Updating the HBA

Configuring an HBA’s Firmware Values

IS0054602-00 A 11-3

3. To change a subset of these values, click Edit. A dialog box displays with the

parameters that can be changed (see figure 11-3).

Figure 11-3. Firmware Parameters Dialog Box

4. Select and change the desired parameters, explained in the following

paragraphs. To view the full name of the parameter, place the cursor on it. When

you are done changing the parameters, click OK. If you want to exit the dialog

box without changing the parameters, click Cancel.

The firmware parameters are as follows:

❑ Snack. When this check box is set and the firmware is configured as an

initiator, the QLA4xxx HBA firmware sends SNACK requests to the target

when it detects missing PDUs. When this check box is cleared and the

firmware is configured as an initiator, the firmware aborts the command

and/or closes the connection when missing PDUs are detected.

❑ Initial R2T. When this check box is selected, the QLA4xxx HBA negotiates

(during login phase) for InitialR2T=yes. When this check box is cleared,

initial R2T is disabled and the QLA4xxx HBA negotiates for InitialR2T=no.

❑ Immediate Data. When this check box is selected, the QLA4xxx HBA

firmware negotiates (during login phase) for Immediate Data=yes. When

this check box is cleared, immediate data is disabled and the firmware

negotiates for ImmediateData=no.

❑ Execution Throttle. This column specifies the execution throttle value.

The execution throttle is used by the QLA4xxx HBA firmware to limit the

number of concurrently executing commands. Valid values are in the

range 0–65535.

In target mode, this column is used by the QLA4xxx HBA to determine the

MaxCmdSN (maximum command sequence number) to report to an

initiator during a logged in iSCSI session.