Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

News

6/29/2009
02:11 PM
George Crump
George Crump
Commentary
50%
50%

Maximizing Block I/O Dollars With Thin Provisioning

Getting the most out of every storage dollar is critical in this economy and as we discussed in our last entry, viable options for optimizing file based primary storage are available now but as of yet solutions that can compress and deduplicate block I/O storage are not yet readily available. But all is not lost, there are things you can do to lower your primary storage block I/O costs.

Getting the most out of every storage dollar is critical in this economy and as we discussed in our last entry, viable options for optimizing file based primary storage are available now but as of yet solutions that can compress and deduplicate block I/O storage are not yet readily available. But all is not lost, there are things you can do to lower your primary storage block I/O costs.The first step of course relates to our last entry, file based data that is on block I/O storage could and should be migrated off to a secondary tier of storage. Beyond moving old data off of primary storage and without the ability to compress or deduplicate block I/O storage, further cost maximization has to come from one of three areas; either reducing the physical drive count, applying the right amount of storage compute power or using more power efficient components, especially drives. The challenge with primary block I/O storage is that you have to maintain performance to the user or customer which may minimize some of the power saving measures you can take.

A potential first step is to be more efficient with how storage is allocated on block I/O by reducing the number of drives and capacity that you need in the first place. The first candidate to help address this is thin provisioning. The idea behind thin provisioning is to only allocate storage as it is needed by the application. Depending on which study you read 25 to 35% of storage is allocated to specific servers but not in use. This is essentially free space that is held hostage by the application and server that the storage is assigned to. It is important to note that this storage area can't be optimized via compression or deduplication, there is not data there to optimize.

Thin provisioning gives you all this wasted capacity back and puts it into a global pool that other servers, with thin provisioned volumes, have access to as they need additional capacity. Before you race out and buy a new storage system that does thin provisioning however, you need to give some thought to the conversion. If you use one of the typical SAN copy utilities to move the data to the new array, you will essentially copy the free space also, eliminating the value of thin provisioning on migrated volumes. As we discuss in our article "Converting from Fat Volumes To Thin Provisioning" there are certain steps to take or capabilities to look for as you move to a thinly provisioned world and so make sure you understand those before you make the jump.

The next area to explore in maximizing primary block I/O storage is to reduce drive count by considering Solid State Disk, which will be the subject of our next entry.

Track us on Twitter: http://twitter.com/storageswiss

Subscribe to our RSS feed.

George Crump is founder of Storage Switzerland, an analyst firm focused on the virtualization and storage marketplaces. It provides strategic consulting and analysis to storage users, suppliers, and integrators. An industry veteran of more than 25 years, Crump has held engineering and sales positions at various IT industry manufacturers and integrators. Prior to Storage Switzerland, he was CTO at one of the nation's largest integrators.

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
COVID-19: Latest Security News & Commentary
Dark Reading Staff 10/1/2020
9 Tips to Prepare for the Future of Cloud & Network Security
Kelly Sheridan, Staff Editor, Dark Reading,  9/28/2020
Attacker Dwell Time: Ransomware's Most Important Metric
Ricardo Villadiego, Founder and CEO of Lumu,  9/30/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
Special Report: Computing's New Normal
This special report examines how IT security organizations have adapted to the "new normal" of computing and what the long-term effects will be. Read it and get a unique set of perspectives on issues ranging from new threats & vulnerabilities as a result of remote working to how enterprise security strategy will be affected long term.
Flash Poll
How IT Security Organizations are Attacking the Cybersecurity Problem
How IT Security Organizations are Attacking the Cybersecurity Problem
The COVID-19 pandemic turned the world -- and enterprise computing -- on end. Here's a look at how cybersecurity teams are retrenching their defense strategies, rebuilding their teams, and selecting new technologies to stop the oncoming rise of online attacks.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2020-24860
PUBLISHED: 2020-10-01
CMS Made Simple 2.2.14 allows an authenticated user with access to the Content Manager to edit content and put persistent XSS payload in the affected text fields. The user can get cookies from every authenticated user who visits the website.
CVE-2020-24861
PUBLISHED: 2020-10-01
GetSimple CMS 3.3.16 allows in parameter 'permalink' on the Settings page persistent Cross Site Scripting which is executed when you create and open a new page
CVE-2020-25990
PUBLISHED: 2020-10-01
WebsiteBaker 2.12.2 allows SQL Injection via parameter 'display_name' in /websitebaker/admin/preferences/save.php. Exploiting this issue could allow an attacker to compromise the application, access or modify data, or exploit latent vulnerabilities in the underlying database.
CVE-2020-8109
PUBLISHED: 2020-10-01
A vulnerability has been discovered in the ace.xmd parser that results from a lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. This can result in denial-of-service. This issue affects: Bitdefender Engines version 7.84892 and prior vers...
CVE-2019-20902
PUBLISHED: 2020-10-01
Upgrading Crowd via XML Data Transfer can reactivate a disabled user from OpenLDAP. The affected versions are from before version 3.4.6 and from 3.5.0 before 3.5.1.