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62 Cards in this Set

  • Front
  • Back
Local Business Continuity Framework
Information Repurpose
Remote Information Business Continuity Framework (more complex)
Remote Information
Remote Processing
The implementation of robust hardware and software technology, high levels of performance and availability, no single point of failure.

o Flexible
o Scalable
o Manageable
o Reconfigurable
o Multiple oConnectivity Options
Ensuring the ability to backup and recover info w/ minimal impact

o Non-disruptive backups
o Instant Restore
o Consistent across applications
o Mask Complexity
Information Repurposing
Ability to reuse production data w/o impacting performance

o Repeatable
o Affordable
o All aspects of enterprise
Remote Information
Ability to assure data availability at a remote location

o Zero data loss to seconds to hours
o A yard, a mile, a thousand miles
o Transport and restore
o Electronic data synchronization
 Differed or periodic
 Real time
Remote Processing
Ensure availability of appropriate servers and networking to assume application restart at remote location

o Build your own
o Provider
Ensure data availability with minimal performance impact at remote location

o Highest availability
o Flexibility
o Automated management
o No single point of failure
Raw Device
o Special device file identifies volume directly
o Any process that can open the device file can read and write any specific volume
o Virtual disk devices that looks like a disk device
o Can be mirror, spanned, striped, and moved
o Can only be opened as a single direct-access file
o Performing I/O directly can eliminate File System overhead
File Systems
o Provide syscalls to create/access files residing on disk
o OS file systems files virtualizes physical disk storage as a collection of logical files
o Hierarchical structure of files and directories
o Consists of five components
 Set of inode storage cells
• (files set aside when file system is made)
 Set of scattered super blocks
• contain info on the file system characteristics, several scattered copies are maintained
 Map of disk blocks in the file system
 Block usage summary
 Set of data block
File Systems
UFS, Journal Filing System (IBM), Enhanced Journaling Filing System JFS2 (IBM), VxFS (Veritas), Veritas Quick for i/o databases, Windows FAT32, FAT16, NTFS.
Conceptually viewed as inverted tree structure
Journaling File System (IBM)
o JFS uses database-like journaling technique
o Only complete updates are applied after a crash
o Updates are first built in a journal log
o Max system size: 1TB
o Max file size: 64GB
Enhanced Journaling File System (JFS2, also IBM)
o Designed to support large files and large files systems
o 64bit Functionality
o Max system size: 16TB
o Max file size: 16TB
VxFS (Veritas)
o Installable file system
o Uses intent logging to provide quick recovery after failure
o Extendable w/o unmounting
o Extent based allocation
Veritas Quick I/O for Databases
o Nearly equal to that of raw devices
o References real file using extended name
o FAT16/32
 Often uses to support duel boot environment
 Win2k and up
 File and directory level security
 Disk compression & quotas
 Encryption
Hierarchical Database
Data representation based on parent-child (tree structure)
Network database model
Representation where data entities are on a lattice structure
Relational database model
Represented as two dimensional tables that relate by common attributes
Object-Oriented database model
Representation of object attributes and behavior
Hybrid data model
Mix of relational and object-oriented
Database Applications
OLTP (Online Transaction Processing)
o Used to manage and modify data
o Many small & random reads and writes
• DSS (Decision Support System)
o OLAP (Online Application Processing)
o Long reads during business hours
o Long writes during refresh
o Sequential reads and writes
Database Backup Types
Cold Backup (Offline)

Hot Backup (online)o Requires DBMS capability to perform backup while the db is running

Point-in-time Backup
o Requires EMC consistency technology (ECA, PPath)
Statement of Work

(Implementation Collateral)
o Legal document between EMC and customer
o Defines scope
 Derived from the design
 Outlines the work effort
Configuration Guide
o Solution design
o Steps to meet customer objectives
• Test and Acceptance plan
o Contains test cases that must be successfully executed
o Defines customer’s exit criteria
Implementation process
1. Data collection
2. Preparation
3. Installation
4. Implementation
5. Testation
Data collection
• EMC Grab
• EMC Reports (Windows)
• HEAT (Host Environment Analysis Tool)
• Ad Hoc Commands/Scripts
• Change Tracker (DeltaMark)
Change Tracker (DeltaMark)
• Licensed through the symchg facility DeltaMark

• Interval length should be set to half the RPO or to the desired cycle time (nothing lower than 10min)
SUM Reports (Change Tracker)
i. Track changes from the point in time the DeltaMark bitmap was marked and gives a running total
ii. Reports trend up ( exponential graph )
DELTA Reports (Change Tracker)
i. Track changes that have occurred since the last interval
ii. Reports specific intervals ( many peaks )
Configuration (Symm Configure (Preview, Prepare, Commit))
o Install additional file sets, patches or service packs
o Establish application baseline
o Change device attributes to map to solution
o Zone and mask device for host access
o Configure additional devices
Changes to the current environment
o Configuration manager
Application considerations
o Current level of OS
o Data layout
o A metric that determines if an application is running well
o Understanding application characteristics
 Start and stop procedures
 Support for online backups
 Support for consistency options
Reconfirm the design
o Using the real-time data, verify the solurtion
 Expected behavior
 Installation impact/benefits
 Recovery/return home behavior
Configuration Manager
preview, prepare and commit
• Licensing consideration
• Symlmf (licensing command)
• License Database: symapiliceneses.dat
Customization, Automation, Scheduling, Notification
Custom Scripts
Quality of Service
Allows users to adjust the data transfer pace for Timefinder and SRDF applications
• Post implementation tasks
o Verify the implementation
o Diagnostics and troubleshooting
• Customer acceptance and signoff
EMC has standards to which implementers must adhere (MD5 Checksum)
• Each command line parameter listed should have a short description with it
• Each script should be written with re-usability in mind
• Each time a script is updated, it should be reviewed for accuracy, robustness and to confirm it follows documented standards
• Write all scripts to use standard in/out error
• Report when something goes wrong, not when it works
• Small procedures are easier to understand and maintain
The name of each script must reflect its use
sh for Bourne shell
• .bat for Windows batch
• .pl for Perl scripts
• .cgi for Common Gateway Interface
Configuration/initialization files
Extension must be one of the following
o .conf
o .ini
o .txt
• Remarks must start with a #
MD5 checksums
• Generated when script has been accepted

• Old and new checksums are compared to determine if any changes were made to the script
Initial BCV pairings
• With the –opt option, Timefinder attempts to
o Pair devices on separate disk adapters
o Pair devices that are on the same disk adapter but are on different SCSI interfaces
o Pair devices that may be on the same DA and SCSI interface but on a separate spindle
• -exact option
o Pairs BCVs in the exact order in which the devices were added to the device group
TimeFinder Exchange Integration Module (TEIM)
streamlines the collective TimeFinder/Mirror actions required in backup operations of the storage enterprise for Exchange servers
TimeFinder Integration Module for SQL Server (TSIM)
integrates and automates the features of TimeFinder/Mirror, Solutions Enabler (SYMCLI) and tools supplied with Microsoft SQL Server products.
Filesystem and database consistency split
o –consistant
• PowerPath
o –ppath
 Stdevs (BCVs/Mirrors)
 ?? Srcdevs (Clone/Snap) ??
o –rdb database type ( Oracle, SQL, IBM, etc)
o –VxFS
What is symqos?
Provides quality of service (QOS) controls on specific devices.
What is symacl?
Sets up or updates Symmetrix Access Control Information.
Data Migration Tools
Windows (xcopy, robocopy, open migrator)

UNIX (rsync, volume managers AIX migratepv, HP pvmove, vertias, vxexac).

What is migratepv?
AIX Data Migration Tool
What is pvmove?
HP-UX Data Migration Tool
What is vxevac?
Veritas Data Migration Tool.
Open Replicator Technology
Controls and Remote refer to the control of Open Replicator oeprations, not the direction of the copy.