Is there any way to see the information on a hardware raid while still being in the OS?

Things to note:

  • I am remotely connected to this machine (so I cannot physically see the information of both drives, but I do know that two drives are in this machine)
  • I cannot reboot this machine as it is in production
  • This unit was handed off to me, but I can gather more information as needed
  • GUI: Gnome Version 2.30.0
  • OS: Ubuntu 10.04

Not sure where to start here.

  1. Gnome is a GUI user environment, not an OS. try lsb_release -a to see what version of Linux you're running.

  2. /dev/sda is the raid set and does not correspond to either physical disk. You do not have a master/slave relationship in raid 1 so saying "mirrored drive" and "normal drive" are meaningless.

  3. You can check what kind of raid controller you have by running lspci | grep -i raid. You might also get the information through dmesg.

  4. If you have an LSI controller you can probably download the megacli utility from http://www.lsi.com/support/Pages/download-search.aspx and use it to see the physical disks.

  • Sorry about the confusion. I have updated the original question. – Zero Stack Sep 10 '14 at 17:34

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