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EMC Proven - Storage and Information Infrastructure V5 > Part_1 - Module_2: TimeFinder > Flashcards

Part_1 - Module_2: TimeFinder Flashcards

1
Q

What are the 3 TimeFinder solutions in the TimeFinder Suite

A

Clone

Snap

VP Snap

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2
Q

What technology is VP Snap based on?

A

TimeFinder Clone

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3
Q

VP Snaps are impacted by cache.

True of False?

A

True

VP Snaps provides the efficiency of snap technology with improved cache utlization and simplified pool management

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4
Q

VP Snaps must not be stored in the same thin pool as the source.

True of False?

A

False

VP Snaps can be stored in the Thin Pool OR can be stored in another pool of your choice

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5
Q

What Symmetrix technology is used for change tracking?

A

Track Table

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6
Q

TimeFinder Clone uses the Track Table to track changes made to the source.

True of False?

A

False

TimeFinder Clones create full-device and extent-level point in time copies.

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7
Q

TimeFinder Clone cannot incrementally resync between source and target.

True of False?

A

False

This is an advantage when using TimeFinder Clone for backups in that, when you re-clone the source volume, only the changes have to be synched to the target clone

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8
Q

What Raid Level Does TimeFinder not Support?

A

TimeFinder Supports

Raid1, Raid 5, Raid6, Raid 10

So I suppose technically it cannot support Raid 50

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9
Q

Why does the VMAX 10k not support TimeFinder Snap?

A

Becuase the VMAX10k is a Thin only Array.

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10
Q

If you have a high change rate on source volume, which is better Clone or Snap?

A

Clone

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11
Q

If you need to take a copy of data during peak IO activity, which would you use, clone or snap?

A

Snap is better during peak IO, especially if there is a low change rate

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12
Q

VP Snap is Superior to Snap becuase

A
  1. Space Efficiency
  2. Multiple Sessions share capcity allocations
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13
Q

What is EMC Symmetrix host-based control software used for?

A
  • Configure Backup sessions
  • Initiate PIT Copies
  • Terminate TimeFinder Operations
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14
Q

Concisely Compare and Contrast

  • Clones
  • Snaps
  • VP Snap
A
  • Full Copy - High IO
  • Pointer Based Copy - Moderate IO
  • Pointer Based Copy using Thin Devices with Improved Cache Utilization
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15
Q

You must wait for theTimeFinder Clone Operation to complete before you can use the copy.

True of False?

A

False

The copy can be used immediatly, while time finder copies data in the background

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16
Q

With TimeFinder clone, how many concurrent copies can you have of a single open systems volume?

Bonus, how many copies can you have for a single Main Frame volume?

A

Open Systems: 16

Main Frame: 4

17
Q

TimeFinder Snap cannot be used as a source for SRDF

True of False?

A

True

18
Q

TimeFinder Clone also includes MF SNAP.

True of False?

A

True

19
Q

Are Cascaded clones supported by TimeFinder?

A

Yes

20
Q

What many copies of a volume can you have for Snap and VP Snap?

A
  • Snap - 128
  • VP Snap - 32
21
Q

TimFinder /Mirror commands are still supported.

True of False?

A

True, there is emulation mode available for this legacy command

22
Q

Describe the TimeFinder NOCOPY command

A

Only copy the data to the clone when the data is requested

23
Q

If TimeFinder Clone allows you to have 16 copies of your data, why is it that if you use Differential Copy sessions you can only get 8 copies.

A

Because Differential Copies require 2 sessions.

One session to the Source and another session to the clone in which you are comparing.

24
Q

Descibe these TimeFinder Clone operations

  1. Create
  2. Activate
  3. Recreate and Activate
  4. Restore
  5. Terminate
A

Create

  1. Create - Establish the relationship between source and target
  2. Clone is now active and immediatly available, production IO is processed against standard
  3. Clone is recreated - incrementally
  4. Restore - Restore data back to the source
  5. Terminate - Removes the clone
25
Q

When talking about TImeFinder Clone, NOCOPY is also described as

A

Copy on Access

26
Q

When using TimeFinder Clone, the Pre-Copy option is not the default.

True of False?

A

False,

The Pre-Copy option is the default setting

27
Q

What are the 3 TimeFinder Clone copy options and which is default

A
  • Copy on Access - (NOCOPY), only copies data as the sourcs is written to or a track on the target is accessed. This is the default
  • Full Background - (COPY) only copies data to the target after the clone is activated
  • Pre-Copy - Start copying data immediatly to the target even before activation of the Clone.
28
Q

TimeFinder Clone requires BCV as target devices?

True of False?

A

False the target can be a Standard or a BCV

29
Q

B.C.V.

A

Business Continuance Volume

30
Q

TImeFinder Clones require that the target is the same ______ and the same ______.

A

Size and Emulation (FBA or CKD)

31
Q

When using TimeFinder Clone, descirbe the difference in these two commands, when creating a clone

Pre-Copy

Full Copy

A

Both command are used to copy data to the clone sessions, however here is the differnce

  1. Pre-Copy is used before the activation of the clone.
  2. Full copy is used after the activatiion of the clone
32
Q

When using TimeFinder Clone to restore the clone, which method between Full and Incrmental can be restored to a different volume other then the original source?

A

Full, Incrementals can only be restored back to the original source volume.

33
Q

How many TimeFinder Clone pairs can you have

A

More then 50,000

34
Q

What is a use case for Thick to Thin or Thin to Thick TimeFinder Clone operations?

A

Can be used as a converstion strategy, but the host will be impacted due to WWN and DeviceID changes when you use the clone.

35
Q

Timefinder /CG canbe used with a database that spans multiple arryas?

True or False?

A

True or False?

36
Q

What is the max number of clones per volume that is providing change data to a production volume

A

8

37
Q

Consistant remote point in time operatoins with SRDF are called _____.

A

Splits

38
Q
A
39
Q
A

EMC Proven - Storage and Information Infrastructure V5 (2 decks)

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