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Solid State Storage Backup - new!.....................
Editor:- In 2010 - launched the 1st directory dedicated to - Solid State Storage Backup.

Although these are still early days for the SSD backup market - the new page will help you filter out news, articles and messages from SSD backup pioneers which otherwise might get lost in the clamor of the SSD market bubble.

In the early days of the disk to disk backup market the old tape vendors scoffed the idea that hard disks might one day steal their market. Despite that precedent - I expect that most vendors in the D2d / VTL market today will not even be dreaming about the possibility that SSDs will one day transform their own cozy market too... the article

Data Backup: Tape vs. Disk

January 2001.....article by:- Steven L. Kaczeus - DataZone

this way to the Petabyte SSD
Disk to Disk Backup versus Tape
the Solid State Disks Buyers Guide
History of Enterprise Disk to Disk Backup
Virtual Tape: Can You Afford to Ignore It?
Using Remote Disk and Tape for BC/DR
Disk to disk backup, Removable disk drives, Backup software
Tape drives, Tape libraries, USB storage, STORAGE news
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Data Backup: Tape vs. Disk - by:- Steven L. Kaczeus - DataZone

Demand for data storage capacity has grown at an unbelievable annual compound growth rate of 30% over the past decade due to increased complexity in operating systems, improved sophistication in user applications, and explosive growth in the Internet. This growth has brought about an enormous volume of data exposed to loss and users need to recognize that data loss is inevitable. The concern for data loss is not if it will occur but rather when will it occur and how serious or disruptive it will be.

The Safeware Insurance Agency who monitors yearly personal computer hardware losses reported $1.9 billion worth of damages in the year 1999 (see Loss Statistics Chart below), which doesn't even include data losses caused by viruses.

Annual PC Hardware Loss Statistics Chart in 1999



Cause of Loss



$ Amount




$ Amount




















Power Surge























































Total Annual PC Hardware Loss in Year 1999 (portables and desktops) = $1,911,331,000

A complete backup and restore procedure is the best protection against data loss and the two foremost methods available are tape or hard disk systems. Historically, tape has been the preferred method used because tape cartridges were inherently cheaper than disk drives. A secondary reason was that tape cartridges were portable and could be stored away from the computer system and since the disk drive was internal to the PC, it could not be removed and/or stored easily or conveniently.

Times have changed and today's system/drive designers have significantly reduced the cost of disk drives making them more competitive with tape systems. Even more important is the fact that tape is slow and sequential making it difficult to find files quickly. Disk drives on the other hand, offer direct random access, significant time saving (time = money), and read/write efficiency that translates into increased productivity and lower operating costs.

DataZONE's DataBook is a product that offers the end user the ability to take advantage of a drive-based backup system. The DataBook is a universal, portable storage device designed for today's mobile user. It is unbelievably rugged – capable of surviving a fall of 30-inches onto a hard surface. It is small, compact, and lightweight making it easy to take anywhere. DataBook is offered in capacities ranging from 5GB to 30GB ensuring that capacity is not an issue. And last, but not least, DataBook is universal and can be attached to any computer via multiple industry standard AT/IDE interfaces including PCMCIA, USB, FireWire, and Parallel Port.

Comparison Chart: Tape vs. Disk



Hewlett Packard

Editor's comments:- this type of cost comparison is only really valid for SOHO applications or road warriors who need the lowest cost form of backup device. For larger systems, RAID with tape backup, has become the classic data protection architecture because it provides the best combination of physical space, performance and cost with the capital equipment cost shared over a large number of users.

Another backup option for portable owners is internet based online backup. However, that's very slow if you're an individual contributor generating audio visual powerpoint presentations. I agree with the author that there is a special class of user for whom the time saving and convenience of removable disk drives is better than other methods.

For example if you have a total system failure, then your old tape drive may not even be supported on the new hardware which you get to replace it, whereas disk drives can be read without special software,through multiple computer and operating system generations.



SureStore T20XAi


10 Gbyte Native

10 Gbyte Native

Backup Speed

12 Mbyte/sec

1 Mbyte/sec

Interface Options
External Device

PCMCIA, USB, Firewire and Parallel Port


Interface Options
Internal Device



Power Required


12 and 5 VDC


Desktop, Notebook

Desktop only

Data Cartridge


T-5 Cartridge


5.25 Slot

5.25 Slot


12 oz

19 oz

Backup Software

Novastor with encryption included

CBII backup software


2 Years

2 Years

Total Cost




Note: The tape drive takes 20 times longer to backup and retrieve data than disk drive.

A major drawback of tape drives however is that they are not designed to interface with notebooks. It is important to observe from the Loss Statistics Chart that although the number of notebooks on the worldwide market is only 10% of the total personal computer population, the annual dollar losses are ten times higher than desktop PC losses. This result stems from the fact that portable notebooks are more exposed and more sensitive to accidents and theft. These statistics should emphasize the need for backup for notebooks especially where the notebook is the only PC in use. Tape backup systems are designed only for desktop PCs, thus leaving this important market segment unprotected.

DataZONE products are designed to be a universal storage device, which means that they can be used on both desktop and notebook personal computers. For example, DataBook can be used on a desktop system either with DataBay (a device bay that easily installs in a vacant 5 ¼-inch bay) or to a USB port. The same DataBook can then be removed and attached to a notebook with a PCMCIA, USB, or FireWire interface cable depending on the configuration of the customer's system.

If the fear of damage or theft is a major concern, the logical alternative is to take only a DataBook with a PCMCIA cable on the trip and borrow or rent any type of notebook at the destination. With a simple insertion of the PCMCIA card into the notebook slot, instantaneous access to the DataBook file will be established. The DataBook using the PCMCIA cable does not require power supply or device driver.

Portability is the newest concept in today's computer world. Everyone is busy and constantly on the move and they want to take as much data as possible with them. The growth of notebook computers and 'Palm type' products bare witness to this phenomenon. And the end is not is sight. As convenient and sophisticated as these products are there remains a flaw in some designs that have the potential of causing major problems: Fragility. Statistics provided by cellular phone and PDA manufacturers demonstrate that practically 100% of all portable products are dropped within the first 6-months of purchase. Cellular phones and PDAs are built to survive the pitfalls facing the mobile user (portable = rugged). These products can survive a 30-inch fall (5,000g shock specification), however notebook computers and external storage devices are not as well protected and are easily damaged.

It could be said that a damaged notebook could easily be replaced; however the same cannot be said of the data that could be lost and which may be irreplaceable. One form of protection against data loss is the DataBook. With its high capacity ranges, superior ruggedness, self-contained design, pre-installed backup / encryption software and multiple interfaces, DataBook is a fast, convenient backup solution available for notebook PCs. ...DataZone profile

What does this mean in practise?

Customer testimonial: I used to do tape backups and restores of my full system. Doing a tape backup of 1.5 Gbyte took 5 hours. Then doing a tape restore took another 7 hours for a total of 12 hours to perform a full system restore. Now, using my DataBook, it took me 38 minutes to create the image of my hard drive and only 22 minutes to do a full restore of that image. Wow, what a difference! What used to take me 12 hours I can now do it less than one hour.

This is just what I wanted. Thanks again. – Gary R. M.

Notebook Backup with DataBook DataBook Backup Library

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