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Configuring Hosts and Storage Arrays
61
Continuous Access Storage Appliance Installation and Maintenance Guide
Setting the execution throttle for Emulex HBAs
This section describes how to set the execution throttle for Emulex HBAs on the following
operating systems:
■
■
Windows 2000 and Windows NT
To set the execution throttle for an Emulex HBA on a Windows 2000 or Windows NT host:
1. To open the registry editor, enter:
Start RegEdit32.exe
.
2. Go to the directory
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\lpxnds\Parameter\Device
.
3. Add values of
QueueDepth
and
QueueTarget
. Use a semicolon (;) to separate
multiple entries.
4. Close
RegEdit32.exe
and reboot the host.
IBM-AIX
To set the execution throttle for an Emulex HBA on an IBM-AIX host:
1. At the AIX prompt, enter
smitty lsattr
.
2. When the menu opens, click List All Defined Devices.
3. Record the port assigned to the HBA, displayed in the leftmost column.
4. To temporarily disable the device, enter:
ifconfig <network configuration> detach
5. To change the throttle value, enter:
chdev -I <port> -a lun_queue_depth=<throttle value>
6. To enable the device, enter:
ifconfig <network configuration> hostname up