Options for Backing Up Terabyte Data
| Format |
Major Vendors |
Price* |
Media Type |
Capacity Native/
Compressed |
Media
Cost |
Transfer Speed MB/sec. |
Reliability (mean time
between failures) |
Special Features |
|
Super DLT
|
Quantum
|
> $6,000
|
.500 linear
|
110GB/220GB
|
$150/cartridge, $1.35/GB
|
11
|
250,000 hours
|
Optical server,
bulk-erasable, infrared
external diagnostics;
due next quarter
|
|
AIT-2
|
Sony
|
> $5,000
|
8mm helical scan
|
50GB/100GB
|
$90/cartridge, $1.80/GB
|
5
|
250,000 hours
|
**Memory in cartridge,
automatic head cleaning
|
|
Mammoth2
|
Exabyte
|
> $4,500
|
8mm helical scan
|
60MB/120MB
|
$95/cartridge, $1.60/GB
|
12
|
300,000 hours
|
Capacities to 90TB,
automatic head cleaning
|
|
LTO, Ultrium
(high capacity)
|
HP, IBM, Seagate
|
$5,500
|
.500 linear
|
100GB/200GB
|
$140/cartridge, $1.40/GB
|
15
|
250,000 hours
|
**Memory in cartridge,
capacities to 240TB
by this year's fourth quarter
|
|
LTO, Accellis
(fast access)
|
HP, IBM, Seagate
|
Not available
|
8mm linear
|
25GB/50GB
|
Not
available
|
20
|
300,000 hours
|
Available in the third
quarter of this year
|
|
VXA AutoPak
|
Ecrix
|
> $4,500
|
8mm single drive + 15GB to 33 GB
|
495GB/990GB
|
$77/cartridge, $2.33/GB
|
6 per drive
|
300,000 hours
|
Variable speed, discrete
packet recording format
|
|
DVD-RAM
|
Panasonic, Hitachi
|
$25,000
|
Four drives
|
2.3TB/4.6TB
|
$20 per disc, $2.10/GB
|
5.4 per drive
|
250,000 hours
|
100-year life, random
-access discs, zero
head-crash liability
|
*Excludes backup software, which ranges from $400 to $4,000, depending on operating system, number of licenses and availability of centralized/remote management features.
**Memory in cartridge embeds information about the tape contents, its file directory, number of times used, etc., to improve reliability and reduce load time.
|
