On 19 April 2012 18:14, James Bensley <jwbensley@???> wrote:
> On 19 April 2012 18:00, Tim Brocklehurst <timb@???> wrote:
>> If you have IPMI on the server (which you will on full server-class hardware)
>> then you can do remote poweroff/poweron reasonably easily (I can easily
>> demonstrate this at the next meeting if there is demand.
>
> I disagree with this idea (sorry Tim!).
>
> It is a practical idea but using IPMI to power down a server, hard
> powers it down. This is bad for the FS (at the minimum). I have tested
> and verified on a lab server and eventually (25~ish shutdowns) you can
> corrupt the file system (I tested on a box with XFS, so I was able to
> repair it very easily and it resumed 100% functionality, but you might
> not always be this lucky).
>
> Had another crazy idea; you can set up a box to auto run a script when
> a USB drive is attached, and a new file system mounted. Have a USB pen
> to hand that has a file with a random name in its root like
> "398hhwjhAweE". When a USB drive is mounted, the "on mount" script
> will run and and check if a file called "398hhwjhAweE" is in the root,
> and if so, run "shutdown -h now". The reverse of a car ignition key.
>
I agree with the lock away bit.
Login to the server remotely and shut it down.
Then you can use ILO/DRAC port to power it back on remotely when you
need to, or wake on LAN.
I think ILO has two power off options. One is the quick touch, one is
the keep virtual finger pressed.
I have not used IPMI, only iLO(HP) and DRAC (Dell)
I wish they could come up with an industry standard name.
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