Auto power on storage arrays on UPS

Hi Guys

If the storage array is off due to power outage while its connected to the APC UPS, will the storage array come back online as soon as the power is back?

Or do we need to configure the BIOS within the storage devices?

Thanks
Goraek
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goraekAsked:
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Gary CaseConnect With a Mentor RetiredCommented:
In general, you need to check two things:

(1)  The BIOS power option needs to be set to "always on"

and

(2)  the UPS has to be configured to it will automatically turn on when power is applied
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Muhammad MullaCommented:
This will be dependant on the hardware of the storage array itself.

You may need to set this in the BIOS of the array, or it may be possible to set it from the user interface.
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KimputerCommented:
Also take into consideration:

How is the UPS configured? (Return power has options like, stay down, wake up after xx% charged, etc)
How did the storage array shutdown? (If by command, sometimes BIOS will not matter, as the BIOS watches for unexpected shutdowns, not for correct self initiated ones)
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Network ZeroCloud Engineer Commented:
I've seen power come back on but not auto on - I guess it depends if the unit its self comes back on when the power is on.

I don't this has to do with ups more if the storage array has settings for auto on when power comes on or if it just happens to do that.

Also check the updates of the unit maybe they patched something like that on the device.
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goraekAuthor Commented:
Ok thanks.

We'll check it out and see how we go.
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Gerald ConnollyCommented:
Of course it depends what you mean by a storage array!

If it is a traditional RAID array, then they normal auto boot, but there may be issues if the power off has been longer than the WBC Battery life.
More modern arrays only use the batteries to write the cache to a NVM medium such as a memory stick rather than trying to preserve the cache contents.

If you are using a server as a iSCSI target then yes you need to set the BIOS to auto boot on power on
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goraekAuthor Commented:
Thanks.
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