1 Backing Up the /MF & Distributed Environments to One Place Timothy O Brien Computer Associates International, Inc.
2 Agenda Storage management challenges unique to for the zseries Brightstor solutions for for the zseries Options for managing physical tapes Summary
3 Architectural Challenges Applications Applications Applications Applications Applications Applications File system Layer Device Drivers LPAR, IFL, or z/vm Unique scale Number of devices Number of systems Device support SCSI tape? Sharing and coexistence issues z/os tape management? z/vm tape management? Tape drive sharing?
4 Architectural Challenges File system Cache Backup Application Device Drivers z/os or z/vm Problem 1: caches changed file system pages so they can t be backed up safely from outside Problem 2: z/os and z/vm do not understand file systems at a file level backups and restores are at volume level
5 Architectural Challenges Weak S390 tape device support provided with No integration with BrightStor z/os or z/vm tape management CA-1 CA-Vtape CA-Dynam/TLMS CA-VM:Tape CA-Dynam/T for VM Not scalable to large numbers of system images tar/pax
6 BrightStor Enterprise Backup Enterprise backup and recovery tool Full and incremental backups Full server and selective file/directory restore Manager-agent architecture Administrative functions GUI administrative interface Catalog and tape management
7 BrightStor Enterprise Backup
8 Defining Backup Source
9 Job Status Monitoring
10 Enterprise Backup Agents Runs on each instance Small footprint Scalable Only component needed on most systems Build into base images Connects to BrightStor manager on any platform (Intel or zseries) Windows Unix Performs physical filesystem operations Backup, restore, file attribute, etc.
12 Physical Tape Options Non-mainframe tape systems Native for zseries z/os media server z/vm integration A Enterprise Backup Nativ e Linu x z/vm
13 Non-Mainframe Tape A Netwo rk Enterprise Backup LPAR, IFL, VM UNIX, Win, etc. Mainframe agents, backed up by BrightStor Enterprise Backup (BEB) manager on another platform.
14 Non-Mainframe Tape for zseries: Agent-only Backup to remote BrightStor Enterprise Backup manager on NT or Unix platforms Useful for Existing clients Resource constrained S/390 sites Inexpensive remote backup solution for disaster recovery Sites with tape hardware investments on non-mainframe platforms
16 Native zseries Tape Stand-alone for zseries solution No other platforms required Supports native, LPAR, IFL, VM Dedicated tape device(s) VM attached or LPAR definitions Requires CA supplied tape device driver High performance, low-level I/O Permits fine-grained control of tape device
17 Native zseries Tape CA supplied tape device driver ESCON/FICON 3480, 3490, 3590 devices Compatible devices from other vendors. /dev/catape/* device files Tapes written in native BrightStor format Compatible with other platforms High performance, efficient tape I/O
18 Native Tape tapedevinit utility Installs driver (dynamically) Specify device address range Creates /dev/catape/* files /dev/catape/* files Can be used to read/write tapes under Not limited to BrightStor Ioctl() interface for low-level functions (rewind, WTM, positioning, etc.)
19 Native Tape Tapes managed by BrightStor Retention, scratching, etc. Unlabeled tapes from z/os or z/vm perspective Any existing tape labels are overwritten Devices can safely be shared with z/os or z/vm Single-system ASSIGN Large blocksizes (minimum 64K)
22 z/vm Integration Similar to native solution, but integrated with VM tape processing Customizable scripts at key points Attach/Detach tape device Open/Close/EOV tape volume (mount) Scratch expired tape Tape label processing
23 z/vm Integration Start backup Attach Tape Device Mount Scratch Tape VMTAPE MOUNT Write Data Close Tape Next volume, if any Detach Tape Device CP DET
24 Z/VM Integration Retains high performance of native solution I/O still managed by device driver No IP transfer for local agents Integrates with Brightstor CA-VM:Tape Brightstor Dynam/T for VM Other VM tape management products Reduces need for dedicated resources on images Support for VM-managed tape libraries and other hardware
25 Putting It All Together
26 z/os Media Server VTAPE CA-1 TLMS A Media Service IP or Hipersockets BrightStor Enterprise Backup Manager z/os (OS/390)
27 z/os Media Server with Storage Tek 9310 HSC CA-1 TLMS A Media Service IP or Hipersockets BrightStor Enterprise Backup Manager z/os (OS/390)
28 z/os Media Server Works in conjunction with Enterprise Backup to enable physical tape processing on z/os or OS/390. IP-based connection Ideal Hipersocket candidate Standard format z/os tapes Standard label, multi-volume datasets Built-in feature available at no additional charge
29 z/os Media Server Multi-threaded single address space Define tape devices via SVC 99 or JCL Simple installation, setup APF library VSAM file Tape management and security definitions Few parameters to adjust or monitor Configure host name/port on side
30 z/os Media Server CFG s390tape Allocate Tape Device JCL or SVC 99 OPEN Tape SL, DSN, Read/Write Data (EXCP) EOV/Close Tape Next volume, if any Deallocate Tape Device
31 z/os Media Server Enterprise Backup sees virtual tape devices, depending on configuration Devices dynamically allocated/freed as needed (if not statically defined in JCL) Single media server can handle multiple copies of Enterprise Backup managers Can mix-and-match real and z/os tape Efficient, low-level EXCP tape processing
32 z/os Media Server Full integration with mainframe tape products BrightStor CA-1 BrightStor CA- Dynam/TLMS Tape Management DFSMSrmm BrightStor CA- Vtape Virtual Tape System Tape libraries and other hardware Required z/os components will be packaged with CA Common Services for z/os and OS/390
33 Summary Storage management challenges unique to for the zseries BrightStor solutions for zseries Interface with existing BEB manager on distributed platform Enterprise Backup manager on Intel Enterprise Backup manager on zseries Options for managing physical tapes Native tape management z/os media server z/vm integration Share tape drives across zos, zvm, and systems Backing up to ONE Platform
35 Contact Information Timothy O Brien Senior Consultant CA Technology Services Computer Associates International, Inc. Office Phone: Cell Phone:
36 Backing Up the /MF & Distributed Environments to One Place Timothy O Brien Computer Associates International, Inc.
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