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The Gripmaster Permalink
March 04, 2012, 07:58

# Copying a big file
pv srcfile | cat - > dstfile

# Measuring disk speed (including raided devices)
pv /dev/sda > /dev/null
pv /dev/md0 > /dev/null

I have /dev/md0 set up as a RAID0 device (using /dev/sda and /dev/sdb) and I did get twice the read speed of /dev/sda

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