Solved

blocksize for Deduplication

Posted on 2012-03-22
3
1,027 Views
Last Modified: 2012-06-27
Hi Experts,

I am using Symantec Backup  Exec 2010R3 and I want to use Deduplication.
But when I setup my storage MD1200 I will be asked what kind of block size or STRIPE ELEMENT SIZE I want to use.

I can choose from 64KB up to 1MB.
What is the best setup when I want to use this array for backup to disk with dedup ?
0
Comment
Question by:Eprs_Admin
  • 2
3 Comments
 
LVL 9

Expert Comment

by:Shani Basha
ID: 37751331
You can choose 64 KB
0
 

Author Comment

by:Eprs_Admin
ID: 37751347
please can you explain in detail, why you use 64KB ?
0
 
LVL 9

Accepted Solution

by:
Shani Basha earned 500 total points
ID: 37765941
A stripe is the smallest chunk of data within a storage array that can be addressed. This is  also called as granularity or block size. Typical options are 16, 32, 64 and 128 kB, but many professional RAID controllers also offer smaller stripe sizes, and some even support sizes as large as 256 KB

Since this is used for data back up, you need to optimize this for capacity.

The stripe size also defines the amount of storage capacity that will at least be occupied on a RAID partition when you write a file. For example, if you selected a 64 kB stripe size and you store a 2 kB text file, this file will occupy 64 kB. Obviously, the stripe size defines the minimum amount of data that a storage will distribute files across its hard drives, in this example, 64 kB.


Hope this clarifies!
0

Featured Post

Threat Intelligence Starter Resources

Integrating threat intelligence can be challenging, and not all companies are ready. These resources can help you build awareness and prepare for defense.

Join & Write a Comment

How can you create a game plan that lets you focus on special projects instead of running from cubicle to cubicle every day and feeling like you’ve accomplished nothing? Try these strategies for prioritizing your tasks, offloading what you can, and …
Our Group Policy work started with Small Business Server in 2000. Microsoft gave us an excellent OU and GPO model in subsequent SBS editions that utilized WMI filters, OU linking, and VBS scripts. These are some of experiences plus our spending a lo…
This video teaches viewers how to encrypt an external drive that requires a password to read and edit the drive. All tasks are done in Disk Utility. Plug in the external drive you wish to encrypt: Make sure all previous data on the drive has been …
This tutorial will walk an individual through the process of installing the necessary services and then configuring a Windows Server 2012 system as an iSCSI target. To install the necessary roles, go to Server Manager, and select Add Roles and Featu…

743 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

13 Experts available now in Live!

Get 1:1 Help Now