Storage Optimization


Test Your Storage Optimization IQ

Posted in Storage by storageoptimization on February 5, 2009
Tags: , , , ,

Here’s a quick quiz to see how smart you are about primary storage optimization:

1. True or false: the only type of deduplication on the market today is block level deduplication–the type that looks at the zeros and ones on disk, and removes the duplicates.

2. Content aware deduplication is:

a) More effective than other types of optimization for primary storage;

b) The best approach to optimizing online files, such as photos, PDFs, and other already compressed files because it extracts them and reads them in their non-compressed format before optimizing them;

c) Only available from Ocarina Networks;

d) All of the above.

3. True or false: dedupe gets 20:1 data reduction results the first time it passes through your data.

4. With online data sets, block level dedupe and content aware dedupe get:

a) About the same results;

b) Different results–block level is better;

c) Radically different results–Ocarina’s content aware deduplication solution gets 5x or better results than block level dedupe.

Answers:

1. FALSE. There’s a new type of dedupe on the storage scene–content aware dedupe. This works in part by analyzing the ones and zeros in files that have been extracted out of their compressed format–a far more effective approach for the types of files that are driving storage growth, such as images, PDFs, and Windows files. More info. at: http://www.ocarinanetworks.com

2. d-all of the above.

3. FALSE: Block level dedupe gets its results because of the repetitive nature of backups – daily backups create dupes, dedupe takes them back out. For online data sets, you won’t get those results, because it’s not a repetitive data set.  You need a different approach that can find the dedupe and compression opportunities in a single online set of files.

4. c–see the chart below for a comparison of results.

on_chart3

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