Storage Service Planning Flashcards

1
Q

Although ________is old, it is still suitable for scenarios where the data volume is small and the requirement for access speed is not high.

A

DAS

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2
Q

suitable for file servers to store unstructured data. Although their access speed is limited by the Ethernet, _____can be flexibly deployed at low costs.

A

NAS

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3
Q

is suitable for large-scale applications or database systems. But _______ is costly and complex.

A

SAN

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4
Q

___________ disks are recommended to be used as system disks.

A

High I/O

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5
Q

__________ are recommended to be used as data disks.

A

SSD-based disks

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6
Q

What is an EVS snapshot?

A

a complete copy or image of the disk data taken at a specific point in time.

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7
Q

True or False: a snapshot can be used to roll back data to another disk.

A

false. A snapshot can be used to roll back data ONLY TO THE SOURCE DISK.

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8
Q

True or False: Neither the entire OBS system nor any single bucket has limitations on the storage capacity or the number of objects/files that can be stored.

A

True

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9
Q

The minimum storage duration of Archive storage is ___ days. After an object is transitioned to the Archive storage class, if it stays in this storage class for less than ____days, you still need to pay for a full ____days.

A

90

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