Product comparison · 2 backup storage devices

Fujitsu ETERNUS LT20 S2 vs HP LTO-4 Storage auto loader & library Tape Cartridge

11specifications compared
9differ
2identical
14known for one product only

Key differences

Form factor
- ETERNUS LT20 S2:1U
- LTO-4 Storage auto loader & library Tape Cartridge:Desktop
Standard interfaces
- ETERNUS LT20 S2:Serial Attached SCSI (SAS)
- LTO-4 Storage auto loader & library Tape Cartridge:Ultra 320 SCSI
Storage media types supported
- ETERNUS LT20 S2:LTO-3HH
- LTO-4 Storage auto loader & library Tape Cartridge:LTO-4
Product colour
- ETERNUS LT20 S2:Black, Silver
- LTO-4 Storage auto loader & library Tape Cartridge:Black
Native capacity
- ETERNUS LT20 S2:400 GB
- LTO-4 Storage auto loader & library Tape Cartridge:800 GB
Compressed capacity
- ETERNUS LT20 S2:800 GB
- LTO-4 Storage auto loader & library Tape Cartridge:1.6 TB
Maximum supported storage capacity
- ETERNUS LT20 S2:6.4 TB
- LTO-4 Storage auto loader & library Tape Cartridge:1.6 TB
Burst transfer rate
- ETERNUS LT20 S2:60 MB/s
- LTO-4 Storage auto loader & library Tape Cartridge:320 MB/s

Side by side

Differences highlightedShow differences only

Comparison of ETERNUS LT20 S2, LTO-4
25 specifications	A Fujitsu ETERNUS LT20 S2 View product	B HP LTO-4 Storage auto loader & library Tape Cartridge Model LTO-4 View product
Performance4 differ
Form factorDiffers	1U	Desktop
Standard interfacesDiffers	Serial Attached SCSI (SAS)	Ultra 320 SCSI
Storage media types supportedDiffers	LTO-3HH	LTO-4
Product colourDiffers	Black, Silver	Black
Number of slots (max)Known for one	8	Unknown — not stated by the source
CertificationKnown for one	UL, CSA, EN, GOST-R, CNS, FCC, ICES, VCCI, RoHS, WEEE	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	250000 h
Security algorithmsKnown for one	Unknown — not stated by the source	256-bit AES
Storage3 differ
Native capacityDiffers	400 GB	800 GB
Compressed capacityDiffers	800 GB	1.6 TB
Maximum supported storage capacityDiffers	6.4 TB	1.6 TB
Drive device, buffer sizeKnown for one	64 MB	Unknown — not stated by the source
Data transmission2 differ
Burst transfer rateDiffers	60 MB/s	320 MB/s
Data transfer rateKnown for one	3 Gbit/s	Unknown — not stated by the source
Sustained data transfer rate (compressed)Differs	120 MB/s	240 MB/s
Poweridentical
Power requirementsKnown for one	85 - 264 V, 50 - 60 Hz	Unknown — not stated by the source
Power supply typeKnown for one	AC/DC	Unknown — not stated by the source
Power consumption (typical)Known for one	59 W	Unknown — not stated by the source
Weight & dimensionsidentical
WeightKnown for one	14 kg	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	10 - 35 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	20 - 80%	Unknown — not stated by the source
Other featuresidentical
Dimensions (WxDxH)Known for one	447.5 x 805 x 43.75 mm	Unknown — not stated by the source
Buffer sizeKnown for one	Unknown — not stated by the source	128 KB

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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