- An Information System Contingency Plan (ISCP) is a pre-established plan for restoration of the services of
information system after a disruption.a given
- Stage 2: Disaster occurs
Stage 3: Recovery
At this stage
Stage 4: Resume Production
At this stage all systems are recovered,
This is
https://defaultreasoning.com/2013/12/10/rpo-rto-wrt-mtdwth/
- Recovery Point
(RPO)Objective
Maximum Tolerable Downtime (MTD)
Recovery Time
Recovery Point
The RPO
How often data
How much expense and/or effort would
If reconstruction wouldn't be possible, how much recent data your company can tolerate losing permanently, considering the likelihood of a catastrophic data loss event.
Maximum Tolerable Downtime (MTD)
MTD is the maximum
https://www.jdfoxexec.com/resource-center/articles/mtd-rto-rpo/
https://en.wikipedia.org/wiki/Information_System_Contingency_Plan
- 5 WAYS TO TEST IT DISASTER RECOVERY PLANS
the five types of disaster recovery tests:
Paper test: Individuals read and annotate recovery plans.
Walkthrough test: Groups walk through plans to identify issues and changes.
Simulation: Groups go through a simulated disaster to identify whether emergency response plans are adequate.
Parallel test:
Cutover test:
https://www.dummies.com/programming/networking/5-ways-to-test-it-disaster-recovery-plans/
- TESTING DISASTER RECOVERY PLANS
Structured Walk-Through Testing
During a structured walk-through test, disaster recovery team members meet
Checklist Testing
A checklist test determines if
Simulation Testing
During this test, the organization simulates a disaster so
Parallel Testing
Full-interruption Testing
A full-interruption test activates the total disaster recovery plan. This test is costly and could disrupt normal operations.
https://www.drj.com/drj-world-archives/dr-plan-testing/testing-disaster-recovery-plans.html
- Disaster Recovery as a Service (
DRaaS ) is the replication and hosting of physical or virtual servers by a third-party to provide failoverin the event of a man-made or natural catastrophe.
Typically,
http://whatis.techtarget.com/definition/disaster-recovery-as-a-service-DRaaS
- Veeam® enables Disaster Recovery-as-a-Service (
DRaaS ) as part of a comprehensive availability strategy, embracing investments made in yourdatacenter and extending them through the hybrid cloud.
https://www.veeam.com/disaster-recovery-as-a-service-draas.html
- High Availability
High availability is a feature which provides redundancy and fault tolerance
What is Redundancy
Redundancy is basically extra hardware or software that can
http://www.internet-computer-security.com/Firewall/Failover.html
- HIGH AVAILABILITY
A High Availability system is one that
FAULT TOLERANCE
A Fault Tolerant system is
https://www.greenhousedata.com/blog/high-availability-vs-fault-tolerance-vs-disaster-recovery
- Disaster Recovery as a Service (
DRaaS ) from Node4 is ideal for companies who need continuous protection of the data and applicationsthat are essential for the operation of their critical business functions. DRaaS is delivered using award-winning software from Zerto to replicate your virtual machines and maintain standby copies on N4Compute, our highly resilient Cloud virtualisation platform
http://www.node4.co.uk/cloud/draas/
- Fujitsu Backup as a Service (BaaS) provides a resilient, cloud-based backup and recovery service. Fujitsu Backup as a Service supports full system recovery, providing much more than folder and file backup and recovery. Delivered from FUJITSU Cloud, it offers the levels of speed, convenience and reliability demanded by organizations today.
http://www.fujitsu.com/global/services/infrastructure/iaas/baas/
- Backup as a Service (BaaS) provides backup and recovery operations from the cloud. The cloud-based BaaS
provider maintains necessary backup equipment, applications, process and management in their data center. The customer will have some on-site installation– an appliance and backup agents are common– but there is no need to buy backup servers and software, run upgrades and patches, or purchasededupe appliances.
-
DRaaS /RaaS. Disaster Recovery as a Service, or moresimply Recovery as a Service, offers more recovery options than the backup recovery of BaaS. BaaS will recover your backed up files, and RaaS recovers your files and applications within contracted RTO and/or RPO periods. It is more costly than BaaS but can be a good option if you do not want to perform your own storage infrastructure recovery in case of disaster.
http://www.datamation.com/cloud-computing/backup-as-a-service-to-baas-or-not-to-baas-1.html
- Backup as a service (BaaS) is an approach to backing up data that involves purchasing backup and recovery services from an online data backup provider. Instead of performing backup with a centralized, on-premises IT department, BaaS connects systems to a private, public or hybrid cloud managed by the outside provider. Backup as a service is easier to manage than other offsite services. Instead of worrying about rotating and managing tapes or hard disks at an offsite location, data storage administrators can offload maintenance and management to the provider.
http://searchdatabackup.techtarget.com/definition/backup-as-a-service-BaaS
- What is disaster recovery?
Disaster recovery (DR) consists of IT technologies and best practices designed to prevent or minimize data loss and business disruption resulting from catastrophic events—everything from equipment failures and localized power outages to cyberattacks, civil emergencies, criminal or military attacks, and natural disasters.
Business continuity planning
Business continuity planning creates systems and processes to ensure that all areas of your enterprise will be able to maintain essential operations or be able to resume them as quickly as possible in the event of a crisis or emergency. Disaster recovery planning is the subset of business continuity planning that focuses on recovering IT infrastructure and systems.
Disaster recovery planning
Business impact analysis
The creation of a comprehensive disaster recovery plan begins with business impact analysis. When performing this analysis, you’ll create a series of detailed disaster scenarios that can then be used to predict the size and scope of the losses you’d incur if certain business processes were disrupted.
Risk analysis
Assessing the likelihood and potential consequences of the risks your business faces is also an essential component of disaster recovery planning
Prioritizing applications
Separate your systems and applications into three tiers, depending on how long you could stand to have them be down and how serious the consequences of data loss would be.
Documenting dependencies
The next step in disaster recovery planning is creating a complete inventory of your hardware and software assets. It’s essential to understand critical application interdependencies at this stage
Establishing recovery time objectives, recovery point objectives, and recovery consistency objectives
By considering your risk and business impact analyses, you should be able to establish objectives for how long you’d need it to take to bring systems back up, how much data you could stand to use, and how much data corruption or deviation you could tolerate.
Your recovery time objective (RTO) is the maximum amount of time it should take to restore application or system functioning following a service disruption.
Your recovery point objective (RPO) is the maximum age of the data that must be recovered in order for your business to resume regular operations.
A recovery consistency objective (RCO) is established in the service-level agreement (SLA) for continuous data protection services. It is a metric that indicates how many inconsistent entries in business data from recovered processes or systems are tolerable in disaster recovery situations
Regulatory compliance issues
All disaster recovery software and solutions that your enterprise have established must satisfy any data protection and security requirements that you’re mandated to adhere to
Choosing technologies
Backups serve as the foundation upon which
Choosing recovery site locations
On the one hand, a copy of your data should be stored somewhere that’s geographically distant enough from your headquarters or office locations that it won’t be affected by the same seismic events, environmental threats, or other hazards as your main site. On the other hand, backups stored offsite always take longer to restore from than those located on-premises at the primary site, and network latency can be even greater across longer distances.
Continuous testing and review
Simply put, if your disaster recovery plan has not been tested, it cannot be relied upon
All employees with relevant responsibilities should participate in the disaster recovery test exercise, which may include maintaining operations from the failover site for a period of time.
Disaster Recovery-as-a-Service (DRaaS)
Disaster-Recovery-as-a-Service (DRaaS) is one of the most popular and fast-growing managed IT service offerings available today. Your vendor will document RTOs and RPOs in a service-level agreement (SLA) that outlines your downtime limits and application recovery expectations.
Cloud DR
Most on-premises DR solutions will incur costs for hardware, power, labor for maintenance and administration, software, and network connectivity. In addition to the upfront capital expenditures involved in the initial setup of your DR environment, you’ll need to budget for regular software upgrades. Because your DR solution must remain compatible with your primary production environment, you’ll want to ensure that your DR solution has the same software versions.Depending upon the specifics of your licensing agreement, this might effectively double your software costs.
moving to a DRaaS subscription reduce your hardware and software expenditures, it can lower your labor costs by moving the burden of maintaining the failover site to the vendor.
https://www.ibm.com/cloud/learn/disaster-recovery
- Section 1. Example: Major goals of a disaster recovery plan
Here are the major goals of a disaster recovery plan.
Section 2. Example: Personnel
You can use the tables in this topic to record your data processing personnel. You can include a copy of the organization chart with your plan.
Section 3. Example: Application profile
You can use the Display Software Resources (DSPSFWRSC) command to complete the table in this topic.
Section 4. Example: Inventory profile
You can use the Work with Hardware Products (WRKHDWPRD) command to complete the table in this topic.
Section 5. Information services backup procedures
Use these procedures for information services backup.
Section 6. Disaster recovery procedures
For any disaster recovery plan,
Section 7. Recovery plan for mobile site
This topic provides information about how to plan your recovery task at a mobile site.
Section 8. Recovery plan for hot site
An alternate hot site plan should provide for an alternative (backup) site. The alternate site has a backup system for temporary use while the home site is being reestablished.
Section 9. Restoring the entire system
You can learn how to restore the entire system.
Section 10. Rebuilding process
The management team must assess the damage and begin the reconstruction of a new data center.
Section 11. Testing the disaster recovery plan
In successful contingency planning, it is important to test and
Section 12. Disaster site rebuilding
Use this information to do disaster site rebuilding.
Section 13. Record of plan changes
Keep your plan current, and keep records of changes to your configuration, your applications, and your backup schedules and procedures.
https://www.ibm.com/support/knowledgecenter/en/ssw_ibm_i_73/rzarm/rzarmdisastr.htm
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Good piece of work, it contains all the matters with regards to the disaster recovery services. Good luck to you and your well performed job.
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