reliability question

[Anonymous user]

Hi,

we have about 70 Sun Workstations protected with a Back-UPS ES 500. The monitors are only connected through the surge protector, but not the battery backed up connectors. Since those are Sun systems, I can't use Power-Chute for some better diagnostics.

We regularily have 1-4 machines rebooting after your typical short term (<1s) power spike/loss. As far as I can see, we can't pinpoint a problem to a single device. It seems to be different systems rebooting every time. The batteries have an average age of 18 month. We lose power like this about every 4-8 weeks.

I usually switch out the UPSes of the system that rebooted and put them on my own system for testing. Out of 10 systems tested that way, I took 1 out of service because it lost battery power within 1 minute. The tested systems typically hold for 10-12 minutes in my setup.

Should I expect 1-4 systems out of 70 not covering the power loss, or do I have to look for other causes? Is this a rate where I should expect having to change the batteries?

Thanks for your help

[Anonymous user · Accepted solution]

Hi,

we have about 70 Sun Workstations protected with a Back-UPS ES 500. The monitors are only connected through the surge protector, but not the battery backed up connectors. Since those are Sun systems, I can't use Power-Chute for some better diagnostics.

We regularily have 1-4 machines rebooting after your typical short term (<1s) power spike/loss. As far as I can see, we can't pinpoint a problem to a single device. It seems to be different systems rebooting every time. The batteries have an average age of 18 month. We lose power like this about every 4-8 weeks.

I usually switch out the UPSes of the system that rebooted and put them on my own system for testing. Out of 10 systems tested that way, I took 1 out of service because it lost battery power within 1 minute. The tested systems typically hold for 10-12 minutes in my setup.

Should I expect 1-4 systems out of 70 not covering the power loss, or do I have to look for other causes? Is this a rate where I should expect having to change the batteries?

Thanks for your help