DM Resize a DM-Multipath Device: Difference between revisions

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


== Further Reading ==
== Further Reading ==

Revision as of 14:59, 12 December 2017

Resize an Online Multipath Device

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

Further Reading

  1. Resizing an Online Multipath Device