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ONTAP FLI

Perform ONTAP FLI HP post-migration host remediation

Contributors netapp-barbe
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After migration, HP-UX 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 Block device LVM (FS) Cluster Sanboot

Step 1: Rescan storage on all the mapped HP-UX hosts

Step 1: Rescan storage on all the mapped HP-UX hosts.

Step 1: Rescan storage on all the mapped HP-UX hosts

Step 1: Rescan storage on all the mapped HP-UX hosts

Step 1: PowerON the server

Step 2: identify the multipath devices

Step 2: identify the multipath devices

Step 2: identify the multipath devices

Step 2: identify the multipath devices

Step 2: From the UEFI shell, verify the device mapping table and boot into hpux from the new Storage device. Set the primary boot device to new Storage LUN

Step 3: Check for the filesystem details

Step 3: Identify the multipath device ID and present it to the respective application.

Step 3: Ensure the new LVM device files are discovered properly

Step 3: Check for the filesystem details

Step 3: Restart the host to boot from newly mapped LUN that is part of LUN Import

Step 4: Mount the devices back to the respective folders

Step 4: Import the VG/LVM

Step 4: verify the required cluster configuration and start the cluster application

Step 5: Activate the VG

Step 5: Validate the cluster status and the apllication that is consuming.

Step 6: List down the LVs present on the VG

Step 7: Mount the LVMs back to the respective folders

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.

For SCSI UNMAP feature to operate correctly, please consult the Vendor documentation to verify the supported software versions. Veritas VxVM + VxFS combination is required to enable this feature.

Filesystem Block device LVM (FS) Sanboot

Step 1: Rescan storage on all the mapped HP-UX hosts

Step 1: Rescan storage on all the mapped HP-UX hosts.

Step 1: Rescan storage on all the mapped HP-UX hosts

Step 1: Rescan storage on all the mapped HP-UX hosts
Steps

  1. Identify storage devices.

    ioscan -fnC disk
insf -e
sanlun lun show all
sanlun lun show all -pv
sanlun lun show -wwpn

  2. Import VG and Online the VG.

    vgimport /dev/vg_name /dev/disk/disk_name
vgchange -a y /dev/vg_name

  3. Identify the volume group and filesystems.

    vgdisplay -v /dev/vg_name
vgdisplay /dev/vg_name
lvdisplay /dev/vg_name/lv_name

  4. Mount the filesystem.

    bdf
mount /dev/vg_name/vol_name /mount_point
HP-UX

Step 1

Capture host information.

Step 2

Unmount the filesystem.

Step 3

Take a backup of the VG.

Step 4

Deactivate the VG.

Step 5

Export the VG.