Re: [smartmontools-support] PERC/MegaRAID bay to dev association

[Alex S. <ml...@os...>]

On 11/30/2011 02:12 PM, Federico Simonetti (9PROOF) wrote:
>
> Hello,
>
> I'm trying to read the association between RAID bay and OS device in 
> the PERC/MegaRAID controllers.
>
>
> For example I would like to know that disk in bay 0 is seen by the 
> system as /dev/sda, while disk in bay 5 is seen as /dev/sdb.
>
There is no such association. /dev/sda is just a virtual logical device 
which could include 2,3 or more drives. AFAIK it is only used to find 
controller, all conversation is going via ioctl interface on different file.
>
> Is there a way to "read" such associations via Smartmontools?
>
To see physical disk status and used trays you may use megacli tool.