Server Crash: 08 January 2010

Forum News, Announcements and any issues you're having with the forum

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Paul-R
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Post by Paul-R » 25 Jan 2010, 12:05

Did you mean Spinrite from Gibson Research?
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Xaccers
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Post by Xaccers » 25 Jan 2010, 20:29

Image

Good news everybody!
Todays outage was caused by a powercut.
This means that the server and website were not at fault.
It also means that the next thing on my shopping list is a UPS, basically a battery backup which tells the server that the power's been cut, so best shut down nice and safely, then powers it back up once the mains comes back online.
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CitroJim
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Post by CitroJim » 25 Jan 2010, 20:35

Xac wrote:Image

Good news everybody!
Todays outage was caused by a powercut.


That's good news Xac!

Had me worried for a few moments but I knew it was in safe hands :D

Check the event logs for any crashed MySQL tables but I reckon it is all OK as both forums are back working fine..

UPS essential I reckon....

Love the cartoon of Farnsworth :D Quality :lol:
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andmcit
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Post by andmcit » 25 Jan 2010, 20:35

So it wasn't the missus logging on to go browsing on ebay then Xac!?

Those battery back up jobbies tend to only last 5 minutes - just enough
to power down properly! Unless you have a spare Xantia battery or even
a generator!? :lol:

Andrew
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Xaccers
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Post by Xaccers » 25 Jan 2010, 20:43

A couple of minutes is really all you need.
If you want something to last during a power outage, it's generator time.
Hmm, I do have one, but it's string start....

Danielle actually got it back online as she was home before me :)
It's great having IT support that also feeds and looks after you!

Andrew, I take it now you're OK viewing the site from all your devices?


I'll be talking to the sales guys at work tomorrow about getting a UPS or two.
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CitroJim
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Post by CitroJim » 25 Jan 2010, 20:51

Xac,

I have a UPS here that will keep a server running for about 30 minutes..

I've just re-batteried it. It had a duff battery but then I remembered I had a spare battery pack squirreled away.

It's currently on charge...

Yours if it proves OK after a charge and a stress test.

It's an APC750XL (the biggie with the massive battery)...
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Xaccers
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Post by Xaccers » 25 Jan 2010, 20:59

That would be fantastic Jim!
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andmcit
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Post by andmcit » 25 Jan 2010, 21:13

Xac wrote:Andrew, I take it now you're OK viewing the site from all your devices?


I DO tend to keep experiencing cache problems
though it may be the number of Activae bleeding me dry? :roll:

So, it's iSlate Wednesday then when the Messiah rises again
and turns the whole World upside down (again?)?

Andrew
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Old-Guy
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Post by Old-Guy » 26 Jan 2010, 11:53

Xac

At the risk of teaching grandad....

I have in the past encountered a good many UPSs that have failed to do their stuff when needed. Leaving aside those where users expect the UPS to keep a PC running for hours or it's under-rated:

- The batteries in UPSs tend to need to be replacing every couple of years - test off-line with a spare 'load' every 6 months. Constant trickle charge with the occasional deep discharge isn't the best way to prolong the life of a lead-acid battery.

- A UPS really needs to be able to hold up the server (and screen) for at least two automatic shut-downs in succession without being exhausted.

- The server BIOS needs to be set to NOT start automatically on power restore.

Otherwise, in the common circumstances when the mains goes Off & On several times, the UPS gets exhausted and the server O/S (unless it's Linux) loses the plot.

Guy
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