Power Path Migration Enabler What is Power Path
Power. Path Migration Enabler
What is Power. Path Migration Enabler (PPME)? • Power. Path Migration Enabler – – – Migrates LUNs seamlessly Streamlines data consolidation Increases LUN sizes without disrupting the user community Does not require Professional Services PPME is included with Power. Path Multipathing software Use Cases • Technology Refresh – Moves large amounts of data between arrays • Lifecycle Management – Easily manages data through its lifecycle 2 © Copyright 2020 Dell Inc.
Power. Path Migration Enabler Provides migrations and mobility Host-based copy Array-based copy • Data copy and synchronization via the host 3 • Data synchronization happens via the host • Data copy is performed by the array © Copyright 2020 Dell Inc.
Workflow for Power. Path Migration Enabler Host-Copy workflow (PP Physical only) Production Maintenance Window Prerequisite task – configure target device Connect storage to host, zone and mask target LUNs, mount target devices Set up migration powermig setup Sync source and target powermig sync Monitor sync progress powermig query Switch to target powermig select. Target Commit the operation powermig commit Clean up migration Post migration tasks – refresh mappings in SRM tools; remove source device if desired powermig cleanup 4 © Copyright 2020 Dell Inc. Unmount devices from host, reclaim/reuse storage
Migration Enabler Steps Using Host Copy Non-Disruptive tasks Host-array connection I/O Bulk data copy thru host Configure target to host powermig setup powermig sync • • Power. Path Migration Enabler clones writes on host Hostcopy daemon does bulk copy through host Supports pause and resume during sync Use throttling commands before or during sync powermig select. Target powermig select. Source powermig select. Target powermig commit powermig cleanup Remove source from host 5 © Copyright 2020 Dell Inc. Source Target
Power. Path Migration Enabler Key Features • Application-transparent Migration • Reduced latency and even throttling per migration and per-host via Host Copy • Support for thin provisioning • Multiple migrations support • MSCS Cluster Support – Windows 2008, Windows 2012, and Windows 2016 • PPME Virtual Edition for ESX servers (Directed Availability) – OR based migration of LUNs and datastores – Uses Power. Path Management Appliance to manage migration 6 © Copyright 2020 Dell Inc.
Power. Path Migration Enabler vs VMware Storage v. Motion Feature PPME Storage v. Motion PPME Benefits Migration type Array based offload Host based copy Faster, uses VMAX Open. Replicator (OR) Migration granularity Per LUN/Datastore movement Per VM movement Storage Admin driven migrations, optimized for technology refresh use cases Host impact Minimal host CPU used ESXi host CPU intensive More ESXi host applications can continue to run with minimal impact Migration limits Max 32 PPME sessions, Max 32 LUNs per datastore Max 2 Migrations per host, Max 8 Migrations per datastore Greater throughput, faster migrations 7 © Copyright 2020 Dell Inc.
PPME Virtual Edition 8 © Copyright 2020 Dell Inc.
Better Together: PPME with Open Replicator Host-Copy via Storage v. Motion Storage-Assisted Places additional load on the v. Sphere hosts Storage replication handles the heavy lifting Increases the v. Sphere host network load May increase the replication network load Requires VMs to be relocated Keeps VMs in place May be significantly slower Likely to be faster 9 © Copyright 2020 Dell Inc.
PPME Customer Solutions • Global Software Provider – PPME used for non-disruptive migrations between arrays in various departments, simplifying workflow and saving time • U. S. Pharmacy Chain – PPME migrations on their Windows Exchange Hosts from legacy CLARii. ON array to VMAX for an online cutover between heterogeneous arrays, thus saving time and effort from their personnel • Non-profit Multi-Hospital and Physician Network – PPME migrations on a variety of Windows and UNIX application servers saved a huge amount of time and effort in an array refresh project that was up against an aggressive timeline • Global Contact Lens Provider – Windows PPME migrations streamline Dell EMC PS services to engage and migrate data in an efficient and online manner using a field proven technology 10 © Copyright 2020 Dell Inc.
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