Feeds

SSD and HDD capacity goes on embiggening

But is it better?

Combat fraud and increase customer satisfaction

Capacity increase rates

The SanDisk/Sony Memory Stick PRO roadmap goes from 16GB maximum capacity to 32GB and then on to 2TB. If we assume a capacity increase rate of 50 per cent a year on average that gives us the following timetable:

2009 - 32GB
2011 - 64GB
2013 - 128GB
2015 - 256GB
2017 - 512GB
2019 - 1TB
2021 - 2TB

Let's apply the same increase rate to SSDs starting from a 2.5-inch form factor 512GB product (Toshiba) today:

2009 - 512GB
2011 - 1TB
2013 - 2TB
2015 - 4TB
2017 - 8TB
2019 - 16TB
2021 - 32TB

How does this compare to expected HDD capacity increases?

Toshiba has announced a 500GB 2.5-inch HDD late last year, joining other suppliers such as Seagate. Lets have a start point of 500GB in 2009 and, applying a 50 per cent per annum capacity increase rate, see what we get:

2011 - 1TB
2013 - 2TB
2015 - 4TB
2017 - 8TB
2019 - 16TB
2021 - 32TB

We get parity, ignoring that slight difficulty of a TB being 1024GB in one table and 1000GB in the other. So let's say we get rough parity. That will make life interesting.

Of course this destination point is erected on an assumption of 50 per cent per year capacity increases with both SSD and HDD technology. That could be wrong. HDD suppliers, feeling the heat of SSD pursuit, could aim to raise capacity faster than this. The flash suppliers may run into technology difficulties. Who knows? We're guesstimating here.

Also there isn't one SSD capacity increase curve but several, one for each cell bit density level.

The picture is complicated by cost/GB differences between the two technologies and price decline rates as well as by I/O speed and write endurance differences. (If anyone can offer intelligence about the comparative price decline rates for HDDs and SSDs, that would be very interesting to know.)

One conclusion is that it is going to become harder to distinguish the right random-access storage technology to use in particular applications, choosing between, say, differently priced and capacity level 2.5-inch HDDs with SATA or SAS interfaces and 5,400rpm, 7,200rpm, and 10,000rpm spin speeds on the one hand, and differently priced and capacity level 1X, 2X, 3X, 4X and maybe even 5X 2.5-inch SSDs on the other, with various speeds and write endurance levels - not to mention hybrid devices with thumping great NAND caches in front of their spinning platters.

Storage life is not going to get any simpler. ®

3 Big data security analytics techniques

More from The Register

next story
This time it's 'Personal': new Office 365 sub covers just two devices
Redmond also brings Office into Google's back yard
Kingston DataTraveler MicroDuo: Turn your phone into a 72GB beast
USB-usiness in the front, micro-USB party in the back
AMD's 'Seattle' 64-bit ARM server chips now sampling, set to launch in late 2014
But they won't appear in SeaMicro Fabric Compute Systems anytime soon
Brit boffins use TARDIS to re-route data flows through time and space
'Traffic Assignment and Retiming Dynamics with Inherent Stability' algo can save ISPs big bucks
Microsoft's Nadella: SQL Server 2014 means we're all about data
Adds new big data tools in quest for 'ambient intelligence'
prev story

Whitepapers

Mobile application security study
Download this report to see the alarming realities regarding the sheer number of applications vulnerable to attack, as well as the most common and easily addressable vulnerability errors.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.