DM Resize a DM-Multipath Device

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Revision as of 22:16, 19 January 2015 by Michael Kohler (talk | contribs) (Created page with "== Resize an Online Multipath Device== # Resize the LUN on the storage subsystem. # Find and record the device paths to the LUN. ## <tt>'''# multipath -l'''</tt> # Resize the ...")
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Resize an Online Multipath Device

  1. Resize the LUN on the storage subsystem.
  2. Find and record the device paths to the LUN.
    1. # multipath -l
  3. Resize the the SCSI block device.
    1. # echo 1 > /sys/block/<block device>/device/rescan
  4. Resize the multipath device.
    1. # multipathd -k'resize map <multipath device>'
  5. Resize the filesystem.
    1. # resize2fs /dev/mapper/<multipath device>
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