Provided by: resource-agents_3.9.2-5ubuntu4_i386
ocf_heartbeat_sfex - Manages exclusive access to shared storage using
Shared Disk File EXclusiveness (SF-EX)
sfex [start | stop | monitor | meta-data | validate-all]
Resource script for SF-EX. It manages a shared storage medium
Block device path that stores exclusive control data. (required,
string, no default)
Location in block device where exclusive control data is stored. 1
or more is specified. Default is 1. (optional, integer, default 1)
Waiting time when a collision of lock acquisition is detected.
Default is 1 second. (optional, integer, default 1)
Monitor interval(sec). Default is 10 seconds (optional, integer,
Valid term of lock(sec). Default is 100 seconds. The lock_timeout
is calculated by the following formula. .sp lock_timeout =
monitor_interval + "The expiration time of the lock" .sp We suggest
90 seconds as a default value of the "The expiration time of the
lock", but you should change it in consideration of access delay to
the shared disk and the switch time of the multipath driver. .sp
The lock timeout have an impact on start action timeout because
start action timeout value is calculated by the following formula.
.sp start timeout = collision_timeout + lock_timeout + "safety
margin" .sp The "safety margin" is decided within the range of
about 10-20 seconds(It depends on your system requirement).
(optional, integer, default 100)
This resource agent supports the following actions (operations):
Starts the resource. Suggested minimum timeout: 120s.
Stops the resource. Suggested minimum timeout: 20s.
Performs a detailed status check. Suggested minimum timeout: 10s.
Suggested interval: 10s.
Retrieves resource agent metadata (internal use only). Suggested
minimum timeout: 5s.
Performs a validation of the resource configuration. Suggested
minimum timeout: 5s.
The following is an example configuration for a sfex resource using the
primitive p_sfex ocf:heartbeat:sfex \
op monitor depth="0" timeout="10s" interval="10s"
Linux-HA contributors (see the resource agent source for information
about individual authors)