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I got an error message in active monitor saying that my server had a hard disk failure. How can I find out which Hard Disk failed on a RaQ4r?

April 26, 2017active Error failed failure GOT message monitor server

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I got an error message in active monitor saying that my server had a hard disk failure. How can I find out which Hard Disk failed on a RaQ4r?

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You can find out which hard disk is working or not by telneting to the RaQ4r as admin. su to root and type the following command: To find out what is wrong with the raid array type cat /proc/mdstat EX : (working one) [admin admin]$ cat /proc/mdstat Personalities : [linear] [raid0] [raid1] [raid5] [translucent] read_ahead 1024 sectors md1 : active raid1 hdc1[1] hda1[0] 768000 blocks [2/2] [UU] md3 : active raid1 hdc3[1] hda3[0] 205056 blocks [2/2] [UU] md4 : active raid1 hdc4[1] hda4[0] 28181056 blocks [2/2] [UU] md6 : active raid1 hdc6[1] hda6[0] 131456 blocks [2/2] [UU] unused devices: [admin admin]$ Here you should be able to see if it is HDA= a primary Master or the HDC= a secondary Master that is not working This command will give more information if the above still leaves you doubt : egrep hda /var/log/kernel | less (search for error messages regarding hda) Run the same script but replace the string with hdc to see information on that drive. Another tool is the dmesg comman