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ONTAP FLI

Discover foreign LUNs for FLI migration

Contributors netapp-aherbin netapp-barbe
PDFs

After backend connectivity is configured, provision the source (foreign) LUN for ONTAP discovery by first unmapping and deprovisioning it from the host and then mapping and masking it to the ONTAP initiator identity on the foreign array (vendor host group and initiator record), ensuring it is not dual-presented.

Next, confirm the backend path is online end-to-end (FC zoning and masking in FC FLI, or healthy ONTAP to target iSCSI sessions in iSCSI FLI. Verify the foreign LUN is discovered in the ONTAP storage stack with the expected path redundancy and basic eligibility.

Provisioning of the foreign array LUN to the NetApp initiator, in this step the LUN identified for import is already safely deprovisioned from the host OS. Now this LUN must be mapped to the host group that has the NetApp iSCSI nitiators, the equivalent of an iGroup in ONTAP.

Example

In case of Pure Storage below are the commands that are used to map the LUN/Volume to the Initiator (in this case it will be NetApp Initiator).

purehost create <HOSTNAME>
purehost list
purehost list --all
purehgroup create <HGROUP>
purehgroup list
purehgroup list --connect
purevol connect --host <HOSTNAME> <VOLUME>
purevol connect --hgroup <HGROUP> <VOLUME>
Before you begin

Foreign LUN Import is supported through FC and iSCSI backend. You should configure your FC or iSCSI backend before beginning the FLI migration.

Steps

  1. Set the privilege level to advanced:

    set -privilege advanced

  2. Confirm foreign LUN visibility:

    storage disk show

  3. Mark as foreign:

    storage disk set-foreign-lun -disk <FOREIGN_DISK_ID> -is-foreign-lun true

  4. Get foreign serial (used for destination LUN creation):

    storage disk show -disk <FOREIGN_DISK_ID> -fields serial-number

  5. Mark the discovered foreign disk as foreign:

    storage disk set-foreign-lun -disk <FOREIGN_DISK_ID> -is-foreign-lun true

  6. Capture foreign disk serial (used for LUN creation):

    storage disk show -disk <FOREIGN_DISK_ID> -fields serial-number

Example

C1_Cluster::*> storage disk show  -disk *NET*
                     Usable           Disk    Container   Container
Disk                   Size Shelf Bay Type    Type        Name      Owner
---------------- ---------- ----- --- ------- ----------- --------- --------
NET-1.1                   -     -   - LUN     foreign     -         -
C1_Cluster::*>
C1_Cluster::*> storage disk show -disk NET-1.1 -fields serial-number
disk    serial-number
------- -------------
NET-1.1 wtJfv?ZnvjXa