unix disk

I have an appliance which is centos based os. It has several disks with raid configuration.
How do I identify the physical disk in which slot etc in case if I have to replace ?
In windows os e use vendors tool to identify the disk VD etc and they all GUI based.
We can make the led to flash etc.
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sara2000Asked:
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rindiCommented:
The server manufacturer also includes Linux tools which you can use for that. If not, you should be able to see the status if you boot into the RAID controller's setup utility using the proper key combination.
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Carlos IjalbaSenior SysadminCommented:
If the RAID controller is hardware based, you should be able to see it's initiation sequence at BIOS boot time, for example I attach a screenshot of the LSI RAID Controller card (LSI is the major RAID controller maker):

LSI Startup sequence
In this case the keyboard combination is CTRL-C, but I have also seen CTRL-A, just have a look for something similar to the screenshot.

Good Luck.
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