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Forum Discussion
Shutdown rules on ReadyNas Duo V2 (arm) with connected APC SmartUPS in power breakdown situation
Hello!
I have a ReadyNAS Duo V2 (arm) with firmware 5.3.13. The NAS is connected via a AP9630 network management card 2 to a APC SmartUPS. In the AP9630 the ReadyNAS Duo V2 is configured as snmp tr...
"You aren't talking to support at all. This is a community forum - Netgear does moderate it and does participate, but community members help one another. I don't work for Netgear."
I know that and I meant that the community could support me! As I support other people in this community with my experiences and posts. In my oppinion "support" is not only "manufacturer support"! So there is a misunderstanding of "support"
What I really meant is that I can create test procedures by myself and need no help there. I need help by my questions!
"As I tried say above, one of the challenges here is that the information from the UPS varies by manufacturer, and in your case it is defined in the MiB that APC provides."
Yes , that is correct. And where is this Mib??? Integrated in the firmware 5.3.13. You can select it in the menu.
And back again: that is why I ask here if someone knows what information is used. May be that a linux professional or someone else logged in via console or ... and read out this information or whatever else. I will not do this because my knowlegde is too bad for this.
"FWIW, when you do use ethernet for UPS monitoring, it is important to protect the switches and routers - either with the same UPS or one that will run longer than the one protecting the NAS. Otherwise the shutdown signal won't reach the NAS, and you will end up with an unclean shutdown when the battery runs out."
Sure and the switches are supported too! Everything else would be nonsens! I am not a beginner und that is why am asking here these questions. A beginner would not think so far!
konsum69 wrote:
Yes , that is correct. And where is this Mib??? Integrated in the firmware 5.3.13.
You can also download it from APC's website here: http://www.apc.com/us/en/tools/download/index.cfm Select Firmware - MIB in the top filter.
Looking at the MiB, it looks to me like the APC just sends a "BatteryLow" status parameter, and also sends a trap when the UPS is about to shut down. It looks you would configure the power reserve level threshold for "BatteryLow" on the APC (not the NAS).
upsBasicBatteryStatus OBJECT-TYPE
SYNTAX INTEGER {
unknown(1),
batteryNormal(2),
batteryLow(3),
batteryInFaultCondition(4)
}
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The status of the UPS batteries. A batteryLow(3) value
indicates the UPS will be unable to sustain the current
load, and its services will be lost if power is not restored.
The amount of run time in reserve at the time of low battery
can be configured by the upsAdvConfigLowBatteryRunTime.
A batteryInFaultCondition(4)value indicates that a battery
installed has an internal error condition."
::= { upsBasicBattery 1 }
lowBattery TRAP-TYPE
ENTERPRISE apc
VARIABLES { mtrapargsString }
DESCRIPTION
"SEVERE: The UPS batteries are low and will soon be exhausted.
If utility power is not restored the UPS will put itself
to 'sleep' and immediately cut power to the load."
--#TYPE "APC UPS: Low battery"
--#SUMMARY "The UPS system's batteries are low and will soon be exhausted."
--#SEVERITY SEVERE
--#TIMEINDEX 1
--#HELP ""
--#HELPTAG 0
--#STATE DEGRADED
::= 7
Though you'd need Netgear to confirm this.
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