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create an LVM volume

Goal

On a machine with LVM installed I would like to create some more /tmp space

Recipe

Ask for information
   # vgs   VG    #PV #LV #SN Attr   VSize   VFree     scsi0   1   3   0 wz--n- 461,10G 195,10G   scsi1   1   1   0 wz--n- 931,51G  23,85G 
   # lvdisplay    ... 
Create the LVM according to the space left on the Volume group:
   #lvcreate  -L 200G scsi0 -n tmp   Logical volume "tmp" created 
 # lvdisplay  ...  --- Logical volume ---   LV Name                /dev/scsi0/tmp   VG Name                scsi0   LV UUID                ea10iW-wAnS-lUSA-clHW-X2M5-ibN3-uAUrws   LV Write Access        read/write   LV Status              available   # open                 0   LV Size                200,00 GB   Current LE             51200   Segments               1   Allocation             inherit   Read ahead sectors     auto   - currently set to     256   Block device           253:3 ... 
Format it
 # mkfs.ext3 /dev/scsi0/tmp 
Mount and use it
 # rm -rf /tmp/* ;  # mount -t ext3 /dev/mapper/scsi0-tmp /tmp 
Note: use "/dev/mapper/scsi0-tmp" not "/dev/scsi0/tmp"
To remove it
 # lvremove /dev/scsi0/tmp 

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