HP Brocade BladeSystem 4/24 HP StorageWorks Fabric OS 6.1.1 administrator guid - Page 433

To set up FICON CUP if fmsmode is already enabled: 1. Verify that FICON Management Server mode is enabled by issuing the ficoncupshow fmsmode command. NOTE: If fmsmode is already enabled, disabling it might be disruptive to operation because ports that were previously prevented from communicating will now be able to do so. 2. If FICON Management Server mode is enabled, disable it by issuing the ficoncupset fmsmode disable command. 3. Install a CUP license key as described in "FICON CUP license considerations" on page 436. 4. Issue the ficoncupset fmsmode enable command. Displaying the fmsmode setting The ficoncupshow fmsmode command displays the effective fmsmode setting for the switch: switch:admin> ficoncupshow fmsmode fmsmode for the switch: Enabled Setting the MIHPTO value The missing interrupt handler process timeout (MIHPTO) is a configurable value that the CUP reports to the channel. This value determines when the channel will timeout waiting for an expected response from the CUP. If processing times are increased, it is possible to inadvertently timeout the channel because the CUP is busier than normal. The ficonCupSet MIHPTO command can be used to increase, decrease, or display the MIHPTO value that the CUP is currently using. The changing of the MIHPTO is an offline procedure as there is no a way to change it and notify the channel of the change. The channel will ask what the MIHPTO is set to during the time where it is bringing that link to the CUP online. The MIHPTO setting will persist across reboots, POR, and failovers. Setting this value to the upper end of the time range will allow the CUP to process more requests, such as at peak usage times, without timing out the channels. It is recommended that the value should be set to 180 seconds in a SAN with B- and M-Series switches. The default value is 15 seconds. 1. Log in to the switch as admin. 2. Disable the switch. 3. Issue the ficonCupSet MIHPTO command and set the value between 15 and 600. Example: setting the MIHPTO value switch:admin> ficoncupsetMIHPTO 447 The input value of the MIHPTO will be rounded down to the nearest value divisible by 10. This is due to IBM's MIHPTO specification. MIHPTO has been changed to 440 seconds Fabric OS 6.1.x administrator guide 433