Review - Section 3 Flashcards

Memorization of some of the key terms/ideas from Chapters 9-12

1
Q

Business Continuity (BC)

A

Preparing for, responding to, and recovering from an application outage that adversely affects business operations.

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2
Q

Information Availability (IA)

A

The ability of an IT infrastructure to function according to business expectations during its specified time of operation.

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3
Q

Disaster Recovery

A

The coordinated process of restoring systems, data, and the infrastructure required to support ongoing business operations after a disaster occurs.

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4
Q

Disaster Restart

A

The process of restarting business operations with mirrored consent copies of data and applications.

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5
Q

Recovery-Point Objective (RPO)

A

The point in time to which systems and data must be recovered after an outage. The amount of data loss that a business can endure.

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6
Q

Recovery-Time Objective (RTO)

A

The time within which systems and applications must be recovered after an outage. The amount of downtime that a business can endure and survive.

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7
Q

Business Impact Analysis (BIA)

A

Identifies which business units, operations, and processes are essential to the survival of the business.

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8
Q

Failure Analysis

A

Involves analyzing both the physical and virtual infrastructure components to identify systems that are susceptible to a single point of failure and implementing fault-tolerance mechanisms.

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9
Q

Single Point of Failure

A

The failure of a component that can terminate the availability of the entire system or IT service.

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10
Q

Data Archiving

A

The process of moving data that is no longer actively used from primary storage to a low-cost secondary storage.

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11
Q

Disaster Recovery

A

Restore production data to an operational state after disaster.

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12
Q

Operational Recovery

A

Restore data in the event of data loss or logical corruptions that may occur during routine processing.

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13
Q

Backup Granularity

A

Depends on business needs and the required RTO/RPO.

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14
Q

Cumulative Backup

A

Copies the data that has changed since the last full backup. Takes longer than an incremental backup but faster to restore.

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15
Q

Incremental Backup

A

copies the data that has Changed since the last full or incremental backup, whichever occurred more recently. Faster than a full backup.

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16
Q

Bare-Metal Recovery (BMR)

A

A backup in which all metadata, system information, and application configurations are appropriately backed up for a full system recovery.

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17
Q

Data Deduplication

A

The process of identifying and eliminating redundant data.

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18
Q

Fixed Content

A

Aged data that is less likely to be changed.

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19
Q

Archival

A

Preserve transaction records, email, and other business work products for regulatory compliance.

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20
Q

Archiving Agent

A

Software installed on the application server. Responsible for scanning the data that can be archived based on the policy defined on the archiving server.

21
Q

Archiving Server

A

Software installed on a host that enables administrators to configure policies for archiving data.

22
Q

Archiving Storage Device

A

Stores fixed content.

23
Q

Source

A

A host accessing the production data.

24
Q

Target

A

LUN(s) on which the production data is replicated.

25
Q

Local Replication

A

Integrated into the storage device. Includes snapshots, LVM replication etc.

26
Q

Synchronous Replication

A

Real-time to another storage device in another location.

27
Q

Asynchronous Replication

A

Not real-time to another storage device in another location.

28
Q

Full-Volume Mirroring

A

The target is attached to the source and established as a mirror of the source.

29
Q

Continuous Data Protection (CDP)

A

A technology used for network-based local and remote replications. Provides any-point-in-time recovery capability during its normal operation.

30
Q

Journal Volume

A

Contains all the data that has changed from the time the replication session started.

31
Q

Remote Replication

A

The process to create replicas of information assets at remote sites (locations).

32
Q

Data Migration and Mobility Solution

A

A specialized replication technique that enables creating remote PIT copies.

33
Q

Data Mobility

A

Refers to moving data between heterogeneous storage arrays for cost, performance, or any other reason.

34
Q

Data Migration

A

Refers to moving data from one storage array to other heterogeneous storage arrays for technology refresh, consolidation, or any other reason.

35
Q

Control Array

A

The array performing the replication operations.

36
Q

Push Operation

A

Data is moved from the control array to the remote array.

37
Q

Pull Operation

A

Data is moved from the remote array to the control array.

38
Q

Synchronous Replication

A

Writes must be committed to the source and remote replica before they are acknowledged to the host.

39
Q

Asynchronous Replication

A

Writes are committed to the source and immediately acknowledged to the host.

40
Q

Disk-Buffered Replication

A

A combination of local and remote replication technologies.

41
Q

Host-Based Log Shipping

A

Transactions to the source database are captured in logs which are periodically transmitted to the remote host who then applies them to the remote database.

42
Q

Three Site Replication

A

Data from the source is replicated to two remote sites.

43
Q

Three Site Replication Implementations

A
  • Three site cascade/multi-hop

- Three site triangle/multi-target

44
Q

LVM-Based Replication

A

The logical volume manager is responsible for creating and controlling the host-level logical volumes.

45
Q

Storage Array-Based Replication

A

The array-operating environment performs the local replication process. Replicas are on the same SAN/array.

46
Q

Source-Based Deduplication

A

Data is deduplicated at the source (backup client).

47
Q

Target-Based Deduplication

A

Data is deduplicated at the target.

48
Q

Multipathing Software (MPIO)

A
  • Recognizes and utilizes alternate I/O path to data
  • Provides load balancing by distributing I/Os to all available, active paths
  • Intelligently manages the paths to a device by sending I/O down the optimal path