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Windows Server 2016 > Advanced Storage > Flashcards

Advanced Storage Flashcards

1
Q

What is iSCSI?

A

Allows accessing storage over an IP network

Sends SCSI commands over network to SCSI compatible devices

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2
Q

What is iSNS?

A

Internet Storage Name Service

Discovery & Configuration of iSCSI targets, for simplified deployment

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3
Q

What is DCB?

A

Data Center Bridging

Network traffic policy allows SAN and LAN to coexist (converged network) combat packet loss

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4
Q

What is MPIO?

A

Multiple network paths to storage devices provided redundant connections to storage
*can use DSM for load balancing across pipes

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5
Q

What is RPO in disaster recovery?

A

Recovery Point Objective

How much data loss can be endured

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6
Q

What is RTO in disaster recovery?

A

Recovery Time Objective

How long can business operate without specific application

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7
Q

What is disaster preparedness?

A

Ability to move workloads to another location

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8
Q

What is storage replica?

A

Volume-Based Block-Level replication

*files can be in use

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9
Q

What is synchronous replication?

A

Data must be written to all volumes in replication group before I/O is marked as complete
*0 data loss, can be slower

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10
Q

What is asynchronous replication?

A

Data is replicated to all volumes without waiting for acknowlegement
*ideal for low bandwidth, high latency connection

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11
Q

What is server-to-server storage replication?

A

Replication partnership across servers

*only supports manual failover

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12
Q

What is cluster-to-cluster storage replication?

A

Replication partnership across HA clusters

*only supports manual failover

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13
Q

What is a stretch cluster?

A

Replication partnership within single cluster

*supports automatic failover

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14
Q

What is the PoSH command to configure replication between volumes on servers or clusters?

A

New-SRPartnership

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15
Q

What is the PoSH command to view replication status?

A

(Get-SRGroup).Replicas

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16
Q

What is the data deduplication optimisation job?

A

Deduplicates data

Once an hour

17
Q

What is the data deduplication garbage collection job?

A

Reclaims disk space by clearing our chunk store

Once a week

18
Q

What is the data deduplication scrubbing

A

Identifies corruption

Once a week

19
Q

What is the data deduplication unoptimisation job?

A

Reverts and disables deduplication

Manual

20
Q

How does data deduplication work?

A

Scans pieces of files, stores them in chunk store

Replaces identical chunks with pointers to chunk store

Windows Server 2016 (15 decks)

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