12-07-2010
So I found the script that was causing the poor performance, but other symptoms have surfaced as well. Sometimes a simple 'ls' on a directory with 30 files will cause the disk to spin for 45 or so seconds while the box is under no other I/O load. Again, no error messages are apparent, and SMART data looks fine.
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LEARN ABOUT SUSE
ocf_heartbeat_sysinfo
OCF_HEARTBEAT_SYSINF(7) OCF resource agents OCF_HEARTBEAT_SYSINF(7)
NAME
ocf_heartbeat_SysInfo - Records various node attributes in the CIB
SYNOPSIS
SysInfo [start | stop | monitor | meta-data | validate-all]
DESCRIPTION
This is a SysInfo Resource Agent. It records (in the CIB) various attributes of a node Sample Linux output: arch: i686 os:
Linux-2.4.26-gentoo-r14 free_swap: 1999 cpu_info: Intel(R) Celeron(R) CPU 2.40GHz cpu_speed: 4771.02 cpu_cores: 1 cpu_load: 0.00 ram_total:
513 ram_free: 117 root_free: 2.4 Sample Darwin output: arch: i386 os: Darwin-8.6.2 cpu_info: Intel Core Duo cpu_speed: 2.16 cpu_cores: 2
cpu_load: 0.18 ram_total: 2016 ram_free: 787 root_free: 13 Units: free_swap: Mb ram_*: Mb root_free: Gb cpu_speed (Linux): bogomips
cpu_speed (Darwin): Ghz
SUPPORTED PARAMETERS
pidfile
PID file (optional, string, default /var/run/resource-agents/SysInfo-default)
delay
Interval to allow values to stabilize (optional, string, default 0s)
SUPPORTED ACTIONS
This resource agent supports the following actions (operations):
start
Starts the resource. Suggested minimum timeout: 20s.
stop
Stops the resource. Suggested minimum timeout: 20s.
monitor
Performs a detailed status check. Suggested minimum timeout: 20s. Suggested interval: 60s.
meta-data
Retrieves resource agent metadata (internal use only). Suggested minimum timeout: 5.
validate-all
Performs a validation of the resource configuration. Suggested minimum timeout: 20s.
EXAMPLE
The following is an example configuration for a SysInfo resource using the crm(8) shell:
primitive example_SysInfo ocf:heartbeat:SysInfo
op monitor timeout="20s" interval="60s"
SEE ALSO
http://www.linux-ha.org/wiki/SysInfo_(resource_agent)
AUTHOR
Linux-HA contributors (see the resource agent source for information about individual authors)
resource-agents 1.0.3 07/05/2010 OCF_HEARTBEAT_SYSINF(7)