Perform ONTAP FLI Linux post-migration host remediation
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After migration, Linux hosts require remediation steps to ensure the newly imported LUNs are properly recognized and functional.
Post-migration - Offline FLI
For Offline FLI, bring the LUN online after deleting the lun import and confirming host initiators are connected.
| Filesystem (LVM & Non-LVM) | Pacemaker with LVM (SCSI3 PR) | SANBOOT |
|---|---|---|
Step 1: Rescan storage on all the mapped Linux hosts |
Step 1: Rescan storage on all the mapped Linux hosts |
Step 1: PowerON the server |
Step 2: Discover the multipath devices. |
Step 2: Discover the multipath devices. Ensure the migrated LUNs are added to PCS Stonith Configuration. |
Step 2: On the server HBA BIOS or UEFI configure the new boot device that is presented to this Host HBA |
Step 3: Import the Volume Groups & perform the VG activation. |
Step 3: Perform VG Configuration Backup restore for those newly discovered VG/LVM, followed by VG activation. |
Step 3: Restart the host to boot from newly mapped LUN that is part of LUN Import |
Step 4: Mount the LVM config on to the respective mount points. |
Step 4: Create the new PCS resource groups & add the respective resources for the available LV & filesystems. NOTE: Please note that the newly activated LVM objects have the LV & filesystem structures intact. |
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Step 5: Verify the PCS Cluster status for all the resources are online and available status. |
Post-migration - Online FLI
After deleting the LUN import, check if the LUN is set with -space-reserve disabled and -space-allocation enabled. If not, modify it accordingly.
| Filesystem | Block device | LVM (FS) | Sanboot |
|---|---|---|---|
Step 1: Rescan storage on all the mapped Linux hosts |
Step 1: Rescan storage on all the mapped Linux hosts |
Step 1: Rescan storage on all the mapped Linux hosts |
Step 1: Rescan storage on all the mapped Linux hosts |