Changes

===Identifying Hard Drives===

===Identifying Hard Drives===

It may not always be obvious which physical hard drive maps to which logical device. The simplest method to verify this if you have a drive with S.M.A.R.T. capability is to map the serial number on the physical package with that displayed by smartctl. Assuming the device of interest is '''sda''', (a SCSI drive), then you would issue the following command as root:

It may not always be obvious which physical hard drive maps to which logical device.  

The first step would be to be able to identify all block devices present on your server. This could be done by using two commands

 

 

 

Then, once you identified a block device , the simplest method to verify which physical drive it is, is using  S.M.A.R.T. capability to map the serial number on the physical package with that displayed by smartctl. Assuming the device of interest is '''sda''', (a SCSI drive), then you would issue the following command as root:

  smartctl -i /dev/sda

  smartctl -i /dev/sda

  smartctl -i /dev/hda

  smartctl -i /dev/hda

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===Adding Additional Drives===

===Adding Additional Drives===