Specify disks or partitions for use by MapR
About this task
The disksetup
script is used to format disks for use by the MapR
cluster. Create a text file /tmp/disks.txt
listing the disks and
partitions for use by MapR on the node. Each line lists either a single disk or all
applicable partitions on a single disk. When listing multiple partitions on a line,
separate by spaces. For example:
/dev/sdb
/dev/sdc1 /dev/sdc2 /dev/sdc4
/dev/sdd
Later, when you run
disksetup
to format the disks, specify the
disks.txt
file. For
example:/opt/mapr/server/disksetup -F /tmp/disks.txt
NOTE: The script
disksetup
removes all data from the specified
disks. Make sure you specify the disks correctly, and that any data you wish to
keep has been backed up elsewhere.If you are re-using a node that was used previously in another cluster, be sure to
format the disks to remove any traces of data from the old cluster.