User Manual

210
Vess R2000 Series Product Manual Promise Technologies
CreatiNg a luN CloNe
ALUNcloneisanexactcopyoftheoriginalLUNorlogicaldrive,includingallthedataitcontains,atonepoint
in time. Use a LUN clone as a backup or to copy a LUN from one system to another.
ALUNclonehasthesamecapacity,stripesize,readandwritepoliciesastheoriginalLUN.However,theLUN
clone can be a different RAID level. The choice of RAID levels depends on the disk array. And if you have multiple
diskarrays,youcancreatetheLUNcloneonadifferentdiskarraythantheoriginalLUN.
This action requires Super User or Power User privileges.
lun clOne OPtiOns
TheVessR2000includesanewLUNCloneoption,the OnlineLUNClone. Thisisused tocreateacopyof
a LUN without stopping I/O on the source LUN. All data on the source LUN is copied and synchronized in a
background operation. The cloning process runs in the background and continues until it is explicitly stopped by
theadministrator.ThisisincontrasttotheOfineLUNClonewhichrequiresthatthesourceLUNgoofineduring
the process.
FirstdecideiftheLUNisclonedtoeitheraDiskArrayoranotherLogicalDrive,thenchoosetheOfineorOnline
option for the method used.
Important
TheactionofcreatinganOfineLUNmomentarilytakestheoriginalsourceLUNor
logicaldriveofine,meaningnobodycanreadorwritetoit.