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Mapping between logical and physical block device names

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http://unix.stackexchange.com – I cannot figure out the mapping between different logical and physical block device names. The output of "cat /proc/diskstats" is : 104 0 cciss/c0d0 ... 104 1 cciss/c0d0p1 ... 104 2 cciss/c0d0p2 ... 104 16 cciss/c0d1 ... 253 0 dm-0 ... 253 1 dm-1 ... 253 2 dm-2 ... 253 3 dm-3 ... The output of "df -h" is : /dev/cciss/c0d0p1 99M 39M 56M 42% /boot /dev/mapper/VolGroup01-LogVol02 908G 760G 103G 89% /home /dev/mapper/VolGroup01-LogVol03 193G 181G 2.6G 99% /opt /dev/mapper/VolGroup00-LogVol00 54G 11G 41G 21% / Where do I f (HowTos)

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Submitted by Danial on 06/19/2012 – Made popular on 06/19/2012

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