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Re: How to get consistent names for USB ports...




On 27/02/2016 6:22 AM, Dan Ritter wrote:
> On Sat, Feb 27, 2016 at 06:10:49AM +1100, Andrew McGlashan wrote:
>>
>> On 27/02/2016 5:46 AM, Christopher Swingley wrote:
>>> udevadm info --query=name --name=/dev/ttyUSB0  --attribute-walk
>>
>> udevadm info --query=name --name=/dev/sdg  --attribute-walk
>>
>> Could you do something similar for mdadm RAID [external USB drives]
>> devices?  Probably only need the serial number form the output.
> 
> That's more or less exactly what LABEL, UUID and ID are for:

Yes, but can you define RAID devices by UUID or Label?

If I have a drive go out, I might unplug it and plug it in again and the
drive goes from /dev/sdg to /dev/sdh -- the RAID device won't assemble
because it isn't /dev/sdg.

> $ cat /proc/mdstat 
> Personalities : [raid1] 
> md0 : active raid1 sda3[0] sdb3[1]
>       973827010 blocks super 1.2 [2/2] [UU]

Those drives are not showing via UUID or label here...

Cheers
A.


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