Server lose disk access after reboot when disk is configured into PurityMigrate

Issue

• We have a requirement to migrate the data from old storage array to PURE SAN devices. The migration is being done using Purity Migrate appliance, it is connected to both the storage arrays and Linux host. But it was found that Linux hosts could not automatically discover the LUNs configured in Purity Migrate appliance during boot process. We need to manually run the rescan-scsi-bus.sh -a script to discover the missing LUNs.