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Question 4 - D-XTR-DY-A-24 discussion

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A systems administrator has been informed that a new backup policy has been put in place for 500 production volumes on an XtremIO X2-R array. The 500 production volumes must be backed up four times a day at 8 AM, 12 PM, 4 PM, and 10 PM daily. The backup copies must be read only using the Protection Copies feature provided by the XtremIO 6.x code.

How many days of XtremlO Virtual Copy read only volumes can the array store before the original backups are deleted?

A.
7
Answers
A.
7
B.
6
Answers
B.
6
C.
5
Answers
C.
5
D.
8
Answers
D.
8
Suggested answer: B

Explanation:

The XtremIO X2-R array, with its Protection Copies feature provided by the XtremIO 6.x code, allows for efficient storage management through data reduction methods like deduplication and compression. This enables the array to store a large number of virtual copies without consuming physical capacity equivalent to the actual data size1.

Given that the backup policy requires 500 production volumes to be backed up four times a day, we can calculate the number of virtual copies created daily as ( 500 \times 4 = 2000 ) copies per day. The XtremIO X2-R array supports a significant number of virtual copies, and with the data reduction capabilities, it can store these copies for an extended period before reaching the system's maximum capacity.

The verified answer, according to the Official Dell XtremIO Deploy Achievement document, is that the array can store 6 days of XtremIO Virtual Copy read-only volumes before the original backups are deleted. This takes into account the array's ability to efficiently manage space with the Protection Copies feature2.

asked 16/09/2024
Lee, Eduardo
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