| Backup, Restore, and Recovery |
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| Description |
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Application Hosting - Backup, Restore, and Recovery
Backups can be defined as creating a copy of data for purposes of reproducing the original in case the original is lost, erased, damaged, or changed in error. The copy may be an exact duplicate of the original or some other structure that allows the original to be recreated by restoration software.
There are several backup techniques. Choice of technique impacts restore/recovery time and the amount of space required to store the backup. Backups can be made of full volumes or of discrete data sets residing on one or more volumes. Some backup techniques are:
- Image or volume backup – makes a copy of everything on a volume, including any control information. An image can only be restored to a like volume
- Full backup – a complete copy of the content of the selected files
- Incremental backup – copies only the content of the files that have been changed since the last full backup
- Mirroring – changes are applied to the copy at the same time they are made to the original
Restore and recovery are similar processes. Frequently, Restore refers to reproducing the original in the course of day-to-day operation. Recovery is used to imply reproducing the original after some catastrophic loss.
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| SDC Responsibilities |
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- Acquire and manage licenses and license compliance for products that perform backup and restore
- Install on SDC-managed hardware platform, configure and test for system-level functionality
- Maintain current product release levels[1]
- Manage administrator privileges and administrator access to backup/restore products
- Define and manage any associated log and archive files
- Execute and monitor jobs to create full or incremental backups based on customer requirements
- Build, execute, and monitor jobs to create full-volume system backups for mainframe LPARs and server hard drives. These backups are for system restore only, not application and database restore
- Manage physical media used for backups, including definition of media rotation requirements, labeling procedures, tape-handling procedures, off-site storage rotation, and media destruction
- Define and execute process to validate backups are occurring, including monitoring backup success and to verify backup media integrity
- Perform full-volume Recovery upon customer request or after system failures
- Provide notification to customer when Recovery completes
- Assist Customer with building and scheduling backup jobs
- Assist Customer with restore functions.
- Monitor, troubleshoot, and tune backup/restore functions for optimum performance and availability
- Consult with vendor technical support staff to escalate issues that cannot be resolved internally
- Notify customers of requested customer and SDC upgrades to backup/restore products
- Patch and upgrade backup/restore products
- Manage all hardware required for backup/restore processes. This includes disk buffers, tape library, virtual tape system, and other associated systems
- Provide contract for recovery hot-site services and facilitate recovery in the event of a catastrophic disaster, for customer identified applications and data
[1] SDC policy on supported software versions will be developed at a later time
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| Customer Responsibilities |
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- Determine backup/restore/recovery requirements for customer data and applications residing on SDC-managed hardware, including backup frequency and time-to-recover requirements
- Build and request scheduling of jobs to create full or incremental backups based on customer requirements for backups needed in addition to SDC minimum backups
- Perform any required workstation backups and restores using customer-provided hardware and software
- Perform data Restores
- Prepare and maintain customer disaster recovery plan
- Determine retention and off-site storage requirements for customer backup data
- Provide estimates of data backup volume and expected growth
- Estimate backup data capacity requirements including normal growth projections and new application requirements in terms of tape and disk volume
- Perform impact analysis of proposed changes to backup/restore functions on customer applications and end-user commitments
- Coordinate schedules of upgrades and product releases so that important customer activities (e.g., application rollouts, application upgrades, training sessions or live service) are not affected by the changes
- Provide application support staff to work with SDC as needed to ensure data integrity and appropriate application functionality upon completion of Restore
- Provide the SDC with disaster recovery plans that include application and data needing to be recovered in the event of a catastrophic disaster
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| Who to Call |
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Your account manager can help answer any questions you have about this service, contact the SDC Service Desk at (503) 373-1000 or e-mail SDC Service Desk.
What to ask for:
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Data set or file restore
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Server imaging
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Backup and restore services
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| Other |
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Service Levels:
Service levels to be provided in later revisions of this document.
Special Change Management Procedures:
None
Related Policies:
None
Revision History:
Draft - June 18, 2007
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