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Would Would Happen ... JBOD Enclosure Goes Offline??


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Hi all,

 

I'm contemplating getting a JBOD enclosure to host an additional set of disks rather than get a large Supermicro chassis... but one thing was worrying me is how unRAID would handle the JBOD chassis going offline?

 

For example, power fails on the JBOD chassis, unRAID would report these disks as offline.

 

But assuming there was no data transfer, on next reboot, I bring the chassis back online, do a parity check, would the system pass? Afterall, multiple drives would have gone offline.

 

In short, how does unRAID respond to multiple disks going offline temporarily?

 

Thanks.

Edited by coolspot
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  • 4 years later...

@JorgeB so what would happen if 4 drives are offline and i only have 1 parity? Does the array stop then? How would I be able to get the array working? As far as I know i have to rebuild every disabled disk. But if i only have 1 parity and 4 drives were missing what would happen then?

 

I am considering a JBOD and do not want to lose data if the JBOD loses connection (power or cable)

 

Best regards 

 

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12 hours ago, Christopher W. said:

 so what would happen if 4 drives are offline and i only have 1 parity? Does the array stop then?

All dropped devices would be unaccessible.

 

12 hours ago, Christopher W. said:

How would I be able to get the array working?

Power down or reboot as needed to bring the devices back online, at most only one disk would be disabled.

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