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Welcome to TimeFinder Fundamentals.Copyright 1996, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 EMC Corporation.All Rights Reserved. EMC believes the information in this publication is accurate as of its publication date. The informationis subject to change without notice.THE INFORMATION IN THIS PUBLICATION IS PROVIDED “AS IS.” EMC CORPORATION MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WITH RESPECT TO THE INFORMATION IN THIS PUBLICATION, AND SPECIFICALLY DISCLAIMSIMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.Use, copying, and distribution of any EMC software described in this publication requires an applicable software license.EMC2, EMC, Data Domain, RSA, EMC Centera, EMC ControlCenter, EMC LifeLine, EMC OnCourse, EMC Proven, EMC Snap,EMC SourceOne, EMC Storage Administrator, Acartus, Access Logix, AdvantEdge, AlphaStor, ApplicationXtender,ArchiveXtender, Atmos, Authentica, Authentic Problems, Automated Resource Manager, AutoStart, AutoSwap,AVALONidm, Avamar, Captiva, Catalog Solution, C-Clip, Celerra, Celerra Replicator, Centera, CenterStage, CentraStar,ClaimPack, ClaimsEditor, CLARiiON, ClientPak, Codebook Correlation Technology, Common Information Model,Configuration Intelligence, Configuresoft, Connectrix, CopyCross, CopyPoint, Dantz, DatabaseXtender, Direct MatrixArchitecture, DiskXtender, DiskXtender 2000, Document Sciences, Documentum, elnput, E-Lab, EmailXaminer,EmailXtender, Enginuity, eRoom, Event Explorer, FarPoint, FirstPass, FLARE, FormWare, Geosynchrony, Global FileVirtualization, Graphic Visualization, Greenplum, HighRoad, HomeBase, InfoMover, Infoscape, Infra, InputAccel, InputAccelExpress, Invista, Ionix, ISIS, Max Retriever, MediaStor, MirrorView, Navisphere, NetWorker, nLayers, OnAlert, OpenScale,PixTools, Powerlink, PowerPath, PowerSnap, QuickScan, Rainfinity, RepliCare, RepliStor, ResourcePak, Retrospect, RSA, theRSA logo, SafeLine, SAN Advisor, SAN Copy, SAN Manager, Smarts, SnapImage, SnapSure, SnapView, SRDF, StorageScope,SupportMate, SymmAPI, SymmEnabler, Symmetrix, Symmetrix DMX, Symmetrix VMAX, TimeFinder, UltraFlex, UltraPoint,UltraScale, Unisphere, VMAX, Vblock, Viewlets, Virtual Matrix, Virtual Matrix Architecture, Virtual Provisioning, VisualSAN,VisualSRM, Voyence, VPLEX, VSAM-Assist, WebXtender, xPression, xPresso, YottaYotta, the EMC logo, and whereinformation lives, are registered trademarks or trademarks of EMC Corporation in the United States and other countries.All other trademarks used herein are the property of their respective owners. Copyright 2013 EMC Corporation. All rights reserved. Published in the USA.Revision Date: June, 2013Revision Number: MR-1WP-TFDRFD.ARNO.5876.4Copyright 2013 EMC Corporation. Do not copy - All Rights Reserved.TimeFinder Fundamentals1

This course, developed by EMC Education Services, builds on the Proven ProfessionalAssociate curriculum and certification by exploring the features and capabilities of core EMCtechnologies and products for all markets; encompassing tiered storage products, backupand recovery systems, virtualized datacenter products, resource management andinformation security products, and EMC Proven Solutions.Copyright 2013 EMC Corporation. Do not copy - All Rights Reserved.TimeFinder Fundamentals2

Upon completion of this course, you should be able to identify TimeFinder concepts andarchitecture, differentiate TimeFinder solutions, describe operations, identify managementsoftware offerings, and describe the TimeFinder business benefits and considerations.Copyright 2013 EMC Corporation. Do not copy - All Rights Reserved.TimeFinder Fundamentals3

This module covers TimeFinder local replication benefits and TimeFinder usage as a point-intime business tool. It also provides an overview of TimeFinder’s application set, lists thearchitectural components, and describes the TimeFinder product family.Copyright 2013 EMC Corporation. Do not copy - All Rights Reserved.TimeFinder Fundamentals4

TimeFinder is a family of products that enable businesses to provide multiple point-in-timecopies of data to distribute business tasks. This allows for simultaneous action of previouslysequential business tasks. An example is the ability to back up a point-in-time copy of criticaldata while production operations continue on the source data.In today’s IT environments, it is critical to have choice and flexibility when building localreplication solutions in order to match the right product to your service-level requirements.The TimeFinder family of products offers the broadest choice of alternatives, from fullvolume mirrors and clone copies, to space saving snapshot copies. Understanding thefeatures and functions of each of the TimeFinder product family options is imperative foridentifying the appropriate solution.Copyright 2013 EMC Corporation. Do not copy - All Rights Reserved.TimeFinder Fundamentals5

Local replication can significantly enhance current business and technical operations byproviding access points to production data for parallel processing activities like backups, diskbased recovery after logical corruptions, and creating test environments for fasterapplication time-to-revenue.The Recovery Point Objective (RPO) is the point-in-time to which systems and data must berecovered after an outage; for example, the end of the previous day’s processing. RPOs areoften used as the basis for the development of replication and backup strategies and as adeterminant of the amount of data that may need to be recreated after the systems orfunctions are recovered.The Recovery Time Objective (RTO) is the period of time within which systems, applications,and functions must be recovered after an outage; for example, one business day. RTOs areoften used as the basis for the development of recovery strategies, and as a determinant asto whether or not to implement the recovery strategies during a disaster situation.Copyright 2013 EMC Corporation. Do not copy - All Rights Reserved.TimeFinder Fundamentals6

TimeFinder allows storage-based information users to make more effective use of their mostvaluable resources by enabling parallel information access. In contrast to traditionalsequential information access, TimeFinder eliminates the need to quiesce an application forbackup. This provides tangible benefits to businesses, including accelerated upgrades.TimeFinder enables application upgrades to quickly identify and remedy problems, minimizerisk, and reduce production downtime. TimeFinder eliminates the backup window to highavailability demand systems. TimeFinder can also shorten maintenance windows, minimizeinfrastructure costs, and improve service levels.Copyright 2013 EMC Corporation. Do not copy - All Rights Reserved.TimeFinder Fundamentals7

The TimeFinder family has several different solutions to help you meet your service-levelrequirements, while providing very powerful local replication capabilities.Let’s take a look at what the TimeFinder family delivers. First is its massively parallel highperformance and unsurpassed RPO and RTO with minimal server impact.TimeFinder easily integrates into industry-leading applications, such as Oracle, Microsoft,VMware, SAP, and IBM. This is a result of the integration efforts as well as EMC partnershipswith these major application vendors. TimeFinder is highly recommended with remotereplication solutions like SRDF (Symmetrix Remote Data Facility) to increase applicationavailability and improve test/development capabilities and disaster restart requirements.TimeFinder is the solution Symmetrix customers rely on for business continuity locally, in thearray, and in the data center.Copyright 2013 EMC Corporation. Do not copy - All Rights Reserved.TimeFinder Fundamentals8

Each TimeFinder product (TimeFinder/Clone, TimeFinder/Snap) has its own distinctarchitecture and operational characteristics. These attributes are essential when addressingthe wide scope of customer data replication requirements. The components that make upeach TimeFinder solution are listed here. TimeFinder architectural components arepresented at a high level within the next few slides.VP Snap leverages TimeFinder/Clone technology to create space-efficient snaps for thindevices by allowing multiple sessions to share allocations within a thin pool. VP Snapprovides the efficiency of snap technology with improved cache utilization and simplifiedpool management. With VP Snap, tracks can be stored in the same thin pool as the source,or in another pool of your choice.Copyright 2013 EMC Corporation. Do not copy - All Rights Reserved.TimeFinder Fundamentals9

Regardless of the replication technology that is being implemented, the Symmetrix storagearray uses “Track Table” technology that creates a record of the data that has been changed.Using this information is what drives the movement or resynchronization of data back andforth from the source and/or target devices.This technology is employed regardless of whether the data is located in a single array oracross multiple arrays. The Track Table is the underlying enabler for all Symmetrix storagearray-based data-mobility applications and technologies.Copyright 2013 EMC Corporation. Do not copy - All Rights Reserved.TimeFinder Fundamentals 10

This slide describes the EMC TimeFinder family of products for the VMAX 20K/VMAX and VMAX 40Karrays. The TimeFinder family of products includes Symmetrix local replication solutions designed tonon-disruptively create point-in-time copies of critical data. You can configure backup sessions,initiate copies, and terminate TimeFinder operations from mainframe and open systems controllinghosts using EMC Symmetrix host-based control software.The TimeFinder local replication solutions include TimeFinder/Clone, TimeFinder/Snap, andTimeFinder VP Snap. TimeFinder/Clone creates full-device and extent-level point-in-time copies.TimeFinder/Snap creates pointer-based logical copies that consume less storage space on physicaldrives. TimeFinder VP Snap provides the efficiency of snap technology with improved cacheutilization and simplified pool management.Each solution guarantees high data availability. The source device is always available to productionapplications. The target device becomes read/write enabled as soon as you initiate the point-in-timecopy. Host applications can therefore immediately access the point-in-time image of critical datafrom the target device while TimeFinder copies data in the background.TimeFinder includes the following features: Supports RAID 1, RAID 5, RAID 6, and RAID 10 protection schemes, Provides restore capabilities, Provides incremental re-synchronization between the source and the target, Supports virtual provisioning, and is Tightly integrated with SRDFCopyright 2013 EMC Corporation. Do not copy - All Rights Reserved.TimeFinder Fundamentals 11

This slide describes the EMC TimeFinder for VMAX 10K/VMAXe family of products.The TimeFinder family of products are Symmetrix local replication solutions designed to nondisruptively create point-in-time copies of critical data. You can configure backup sessions,initiate copies, and terminate TimeFinder operations using EMC Symmetrix host-basedcontrol software.TimeFinder local replication solutions include TimeFinder/Clone and TimeFinder VP Snap.TimeFinder/Clone creates full-device point-in-time copies. TimeFinder VP Snap provides theefficiency of snap technology with improved cache utilization and simplified poolmanagement.Each solution guarantees high data availability. The source device is always available toproduction applications. The target device becomes read/write enabled as soon as youinitiate the point-in-time copy. Host applications can therefore immediately access the pointin-time image of critical data from the target device while TimeFinder copies data in thebackground.TimeFinder includes the following features: Supports RAID 1, RAID 5, and RAID 6 protection schemes, Provides restore capabilities, Provides incremental re-synchronization between the source and the target, Supports virtual provisioning, and is Tightly integrated with SRDFCopyright 2013 EMC Corporation. Do not copy - All Rights Reserved.TimeFinder Fundamentals 12

With all the choice and flexibility in making TimeFinder family replicas, how do you knowwhich type to use and when? It is a matter of balancing customer needs and mapping themback to a few key areas: performance, availability, functionality and economics.Pointer-based images are not physical copies of your information; they are logical views ofthe original information based on the time the image was created. Snapshots and snaps arecreated in seconds and can be retired when no longer needed.In contrast to a full data copy, a snapshot uses only a fraction of the original space. Multiplesnapshots can be created to suit the needs of multiple business processes. Secondary serverssee the snapshot as an additional mountable disk volume. Servers mounting a snapshot havefull read/write capabilities with the snapshot data.TimeFinder/Snap multi-virtual sessions allow up to 128 virtual point-in-time copies.TimeFinder/Snap sessions on Symmetrix VMAX 40K systems always use multi-virtual mode.VP Snap leverages TimeFinder/Clone technology to create space-efficient snaps for thindevices by allowing multiple sessions to share allocations within a thin pool. VP Snapprovides the efficiency of snap technology with improved cache utilization and simplifiedpool management. With VP Snap, tracks can be stored in the same thin pool as the source,or in another pool of your choice.Copyright 2013 EMC Corporation. Do not copy - All Rights Reserved.TimeFinder Fundamentals 13

This module covers TimeFinder/Clone, clone operations, clone components, cascaded clonefunctionality, and TimeFinder/Clone functional capabilities.Copyright 2013 EMC Corporation. Do not copy - All Rights Reserved.TimeFinder Fundamentals 14

TimeFinder/Clone is a pointer-based, full-copy product for Open Systems and Mainframeenvironments. It enables the creation of point-in-time copies that can be used for backups,decision support, data-warehouse refreshes, or any other process that requires parallelaccess to production information.Clones can be protected using any type of supported protection scheme, including RAID 5and RAID 6. They do not require a Symmetrix mirror position. You can create up to 16 activeclones of a single source volume, all of which are immediately available for both read andwrite access.A differential clone session uses two (2) copy sessions, therefore, you can only have amaximum of eight (8) differential clone sessions. (A differential clone operation copies onlythose device tracks that have changed.)TimeFinder/Clone also includes a “NOCOPY” option, which enables you to perform a copyprocess only when the actual data is requested. As with all TimeFinder family products,TimeFinder/Clone supports the TimeFinder/Consistency Groups option to ensure dataconsistency between volumes and across Symmetrix systems.TimeFinder/Clone is ideal when high performance, RAID 5 and RAID 6 protection, and highlyfunctional point-in-time copies are required.Copyright 2013 EMC Corporation. Do not copy - All Rights Reserved.TimeFinder Fundamentals 15

The TimeFinder/Clone creation and implementation process consists of the followingoperations.1. Create: creates a relationship between source and clone.2. Activate: the Clone is now active and available immediately for read/write access andthe production I/O is processed against standard.3. Establish: “Creates” a relationship between the source and target and “Activates” theclone session.4. Recreate/Activate: the Clone is re-attached to Standard for new point-in-time copy,which is incremental.5. Restore: the Clone is re-attached to Standard: incremental or full restore performed.6. Terminate: causes the target host to lose access to clone, and removes clone.Each step is a critical component of a disk-based, local protection and recovery solution.Copyright 2013 EMC Corporation. Do not copy - All Rights Reserved.TimeFinder Fundamentals 16

When you use the copy option, the TimeFinder/Clone session copies all of the source devicetracks to the target device. The copy process starts when you activate the session (initiatethe point-in-time copy) and completes when all of the source device tracks are copied to thetarget device and no protected tracks are left. You will typically use the copy option to createa full source device copy on the target device (gold copy) and keep data on the target deviceintact for recovery purposes. You can also use the copy option if you need to make the fulldevice point-in-time copy available to another host. The other host can then access thetarget device while the production host continues to access the source device.The TimeFinder/Clone copy options are:Copy on access: The track is copied the first time a track on the source device is written to,or a track on the target is accessed. This is the default mode of operation forTimeFinder/Clone.Full background: This option copies data as a low priority task, whether the data is accessedor not. This mode is enabled after activation of the clone session.Pre-copy function: Starts copying tracks in the background, before the clone session isactivated.Copyright 2013 EMC Corporation. Do not copy - All Rights Reserved.TimeFinder Fundamentals 17

TimeFinder/Clone can use Standard or BCV (Business Continuance Volumes) for source andtarget devices, as long as all the devices are the same size and emulation type (FBA or CKD).The target of a copy operation is a Symmetrix storage array clone. Copying to a clone can beimmediate, as with PreCopy, or deferred, as with CopyOnAccess.Copying occurs when there are writes to the source device or reads/writes to the targetdevice. The clone pair state remains CopyOnAccess until you terminate the copy session, oruntil all tracks have been accessed. This is the default option for any Open Systemsenvironment.MODE(COPY) is the default in the Mainframe environment, and specifies that the source totarget background copy should begin immediately. To get the equivalent of CopyOnAccess onthe Mainframe, you would use the MODE(NOCOPY) parameter command.Copyright 2013 EMC Corporation. Do not copy - All Rights Reserved.TimeFinder Fundamentals 18

The TimeFinder/Clone restore command copies target data to another device or back to theoriginal source device.In the case of a Full Restore, the original session terminates and a copy session to the targetof the restore starts. In the case of an Incremental Restore, the original session terminatesand an incremental copy session back to the original source device will start.To support a Full or Incremental operation, the session must have been created with thedifferential option during the create session, and the target device must be in a fully copiedstate.Copyright 2013 EMC Corporation. Do not copy - All Rights Reserved.TimeFinder Fundamentals 19

With Enginuity 5874 and beyond, TimeFinder/Clone supports Thick to Thin replication,allowing customers to take advantage of virtual provisioning by providing the ability toquickly move an application’s data from standard or thick volumes to virtually provisionedstorage (Thin devices) within the same array.Data can also be moved from Thin devices to standard devices (Thin to Thick) for situationswhere the space efficiencies and rapid provisioning of virtual provisioning is no longerrequired, or where specific applications may be better suited to standard devices. During thereplication operation, disk extents (chunks) marked as “Not Written By Host” (NWBH) areautomatically detected and will not be copied to the thin device.A key consideration for Thick to Thin replication is ensuring the thin pool has an adequateamount of space to a