How can one associate a 3ware controller with the corresponding /dev/tw?? device?

Posted by barbaz on Super User See other posts from Super User or by barbaz
Published on 2012-09-10T15:00:11Z Indexed on 2012/09/10 15:40 UTC
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Filed under:

linux

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raid

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smart

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3ware

I have a few 3ware RAID controllers installed in a system. Is there any way to figure out the mapping between the following identifiers, each describing in a way the very same RAID controller?

The tw_cli reported controller id (e.g. c0,c1,c2,...)
The corresponding device nodes that allow smartctl access via the 3ware driver (e.g. /dev/twa0, /dev/twa1, /dev/twl0)
The block device presented to the system representing a RAID unit (/dev/sda, /dev/sdb,...)

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