Hitachi MK-96RD647-01 manual AIX Reserve Function, AIX Reserved Retry Function, Is disabled

AIX Reserve Function

AIX Reserved Retry Function

For FX versions 01-XX-61 and earlier, an AIXsystem error will occur when you use FX to send data to a reserved volume on another system. For FX versions 01-XX-62 and later, you can retry sending data to the reserved volume by specifying the wait time and retry count for the environment variable of the other system. FX can send data again when the reserved volume is released by the other system. The following table shows the AIX reserve functions.

Table 2-8 AIX Reserve Retry Function

Environment Variable or Function

Description

FAL_RETRY	To set retry function: specify the environment variable.
FAL_RETRY_COUNT	To set retry count: specify the environment variable. (FX
	attempts top send data while in reserve status.)
FAL_RETRY_WAIT_TIME	To set the interval: specify the environment variable. (FX
	attempts to send data while in reserved status.)
FAL_RETRY_TARGET	To set system error codes: Specify the environment
	variable. (System error codes asreretry triggers.)
Retry function	The retry function in invoked when AIX commands
	trigger a system error (open,close,read,write,seek,flush).
Out put retry log function	FX outputs a retry log (FAL_Error log) when it executes
	retry.

Environment Variables and Functions

•Retry Function: You can set the retry function by specifying the environment variable (FAL_RETRY).

– If there is no definition of environment variable, the	Retry function
is disabled.

–If the environment variable is defined as ON, the Retry function is enabled.

–If the environment variable is defined as OFF, the Retry function is disabled.

–If the environment variable is defined as other, the Retry function is disabled.

•Retry Counts Function: You can set the number of retry function instances by specifying the environment variable (FAL_RETRY_COUNT). FX attempts to send data during reserved status.

–The default count number is 10, where no definition of the environment variable is given.

–The range of the FAL_RETRY_COUNT variable is 1-600.

2-34 About Cross-OS File Exchange Operations

Hitachi USP V Cross-OS File Exchange User’s Guide