ONTAP Supports Converting LUN to Namespace and Namespace to LUN. And this conversion can be done w/o any data loss. So for a use where someone wanted to migrate Data from SCSI (Fibre Channel and iSCSI) to NVMe (NVMe-FC and NVMe-TCP) then it is possible and these are the steps, Pause the IO to the LUN or Namespace which needs to be converted. Unmap the LUN or Namespace from the iGroup or Subsystem respectively. Create the necessary LIFs (SCSI-FC , iSCSI , NVMe-FC or NVMe-TCP) Ensure the connectivity from the Hosts and Check if the initiators is logged in. Create iGroup or Subsystem. Convert Namespace to LUN or LUN to Namespace , can use the below commands for the conversion. =========== Converting LUN to NS =========== ONTAPCluster::*> lun show -volume NS2LUN2NSVolume Vserver Path State Mapped Type Size -------- ------------------------------- ------- -------- -------- -------- VServerNS2LUN2NS /vol/NS2LUN2NSVolume/Lun2NS online unmapped linux 40MB ONTAPCluster::*> vserver nvme namespace convert-from-lun -lun-path /vol/NS2LUN2NSVolume/Lun2NS -vserver VServerNS2LUN2NS ONTAPCluster::*> vsenv Error: "vsenv" is not a recognized command ONTAPCluster::*> vserver nvme namespace show -volume NS2LUN2NSVolume There are no entries matching your query. ONTAPCluster::*> vserver nvme namespace convert-from-lun -lun-path /vol/NS2LUN2NSVolume/Lun2NS -vserver VServerNS2LUN2NS ONTAPCluster::*> lun show -volume NS2LUN2NSVolume There are no entries matching your query. ONTAPCluster::*> vserver nvme namespace show -volume NS2LUN2NSVolume Vserver Path State Size Subsystem NSID ------- -------------------------------- ------- ------- ---------- --------- VServerNS2LUN2NS /vol/NS2LUN2NSVolume/Lun2NS online 40MB - - <<< LUN Converted to NS ONTAPCluster::*> =========== Converting Namespace to LUN =========== C2_sti85-vsim-ucs210c_cluster::*> lun show -volume NS2LUN2NSVolume There are no entries matching your query. C2_sti85-vsim-ucs210c_cluster::*> vserver nvme namespace show -volume NS2LUN2NSVolume Vserver Path State Size Subsystem NSID ------- -------------------------------- ------- ------- ---------- --------- VServerNS2LUN2NS /vol/NS2LUN2NSVolume/Lun2NS online 40MB - - C2_sti85-vsim-ucs210c_cluster::*> lun convert-from-namespace - -vserver -namespace-path C2_sti85-vsim-ucs210c_cluster::*> lun convert-from-namespace -namespace-path <path> Path of the NVMe namespace C2_sti85-vsim-ucs210c_cluster::*> lun convert-from-namespace -namespace-path /vol/NS2LUN2NSVolume/Lun2NS -vserver VServerNS2LUN2NS C2_sti85-vsim-ucs210c_cluster::*> vserver nvme namespace show -volume NS2LUN2NSVolume There are no entries matching your query. C2_sti85-vsim-ucs210c_cluster::*> lun show -volume NS2LUN2NSVolume Vserver Path State Mapped Type Size --------- ------------------------------- ------- -------- -------- -------- VServerNS2LUN2NS /vol/NS2LUN2NSVolume/Lun2NS online unmapped linux 40MB <<< NS Converted to LUN C2_sti85-vsim-ucs210c_cluster::*> ------------------------------------------------------------------------------------------------------------------------ 7. Post Conversion , Map the LUN or NS to the respective iGroup or Subsystem appropriately. 8. Proceed with the Discovery of the LUN/Namespace at the Host. 9. File System Check at the Host and then can proceed with restarting IO on the LUN or NS.
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Hi all,
I give up, I'll never be a Windows guy.
Please enlighten me: With no SnapDrive on board, how is it possible to identify the name of an iSCSI LUN on an ONTAP 9 filer?
I tried to match any sort of number from the outputs of
::> lun mapping show
::> lun show
and
::> iscsi session show
with the outputs of
PS C:\Users\admin> iscsicli
and
PS C:\Users\admin> Get-IscsiConnection
to no avail.
All I want is to find the name of the LUN/volume on Windows to find the corresponding object on the filer to modify.
Any clues?
Thanks and best regards
Peter
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I am currently setting up SnapMirror for hundreds of volumes for a CIFS SVM residing in a Metrocluster site. I create destination volumes with the same volume size and type DP using powershell on a FAS2720 filer. Later I will create the SM relationship and initialize it, also using powershell. When it is done, I will have to break the relationship with all the hundreds of volumes and then run another powershell command to add junction paths,export policies to each of those volumes in order to create functional CIFS shares for the volumes. Is there a simpler way to replicate a CIFs-server to a different Netapp cluster? I was thinking first to use Storage VM (DR), but it seems not to be available. Maybe because the source SVM already is in a SVM DR relationship inside its Metrocluster?
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Hi We are currently testing the use of MAV which is supported in Ontap 9.11.1x. As I see it, it is only possible to create local users as approvers, does anyone know if there will be support for using AD groups as a approvers. ? The idea is via. automation that a user is temporarily members of a AD group to approve pending approver
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Hi Everyone I have a Customer who wants to use multiple WAN links between two sites, to do mirroring from one Cluster to Another. The peering and snapmirror relationships has already been established from the Production to the DR systems via the first WAN link, but they are adding an additional application on the Production system, which they want to mirror via a separate WAN link. (Same Prod and DR systems). I know in 7-mode you were able to force mirroring to use dedicated network interfaces - is it possible to do that in the latest versions of ONTAP? I assume you will need different VLANS etc, but how will the peering work, as it is already established? Will it be better to create a new vserver for this application and use SVM mirroring? Regards and thanks for your help.
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