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Targa Systems
High Performance SCSI Flash Disks
VME 25 - SCSI Flash Disk
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Overview
Targa’s Solid-State SCSI Module has been specifically
designed to replace hard disk drives in rugged and
environmentally demanding applications. The single
slot, 6U VME card is currently available in the VME
convection cooled and conduction cooled form factors.
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| Features
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Ruggedized, high reliability,
solid state design, no moving parts |
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Up to 24 Gbytes of FLASH memory
as 3 independent 8 GB SCSI drives |
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Single slot - 6U VME |
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Dual slot version – capacity
>90 GB – consult Targa |
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SCSI-1, SCSI-2 & SCSI-3 (ultra)
compatible, 8 bit (SCSI narrow) |
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Fast Access time < 0.2 msec |
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Low power consumption |
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Noiseless operation |
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MTBF: 500,000 hrs (MIL-STD-217,
GB) |
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Write Protect and High Speed Erase
features |
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| PRODUCT MODEL NUMBERS |
| Targa’s VME25 SCSI module
is available in a broad range of memory capacities and
environmental classifications. The product model designations
are: |
| VME25 / A -
cc - ee |
A |
F = Fast SCSI
U = Ultra SCSI |
| cc |
capacity = cc x 100 MB |
| ee |
environmental class |
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Capacity (Mbytes) |
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Sample Model No
these are (examples only) |
1st |
Drive 2nd |
Drive 3rd |
Drive Environmental
Classes |
| VME25/F-6-ee |
600 |
- |
- |
Basic |
-00 |
| VME25/U-25-ee |
2500 |
- |
- |
Enhanced |
-10 |
| VME25/F-25-12-ee |
2500 |
1200 |
- |
Extended |
-20 |
| VME25/U-12-5-ee |
1200 |
500 |
- |
Conduction |
-50 |
| VME25/F-82-82-82-ee |
8200 |
8200 |
8200 |
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Single drive capacities
available; any combination up to 3 drives on
a board:
cc = 1 (128 MB), 2 (256 MB), 5 (512 MB), 6 (640MB),
12 (1.28 GB), 25 (2.56 GB), 51 (5.1 GB), 82 (8.2
GB) |
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| VME25 SPECIFICATIONS |
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VME25/F |
VME25/U |
| Access Time |
< 0.2 ms |
< 0.1 ms |
| Sustained Read Rate |
> 9 MBytes/sec |
> 18 MBytes/sec |
| Sustained Write Rate |
> 9 MBytes/sec |
> 18 MBytes/sec |
| Read Bit Error Rate |
> 10(-20) |
> 10(-20) |
| Entire Media Erase |
2 sec/GB typ |
2 sec/GB typ |
| SCSI Compatibility |
8 bit SCSI narrow |
| VME25/F |
ANSI SCSI-2 Standard X3.131-1994 |
| VME25/U |
ANSI SCSI-2 Standard X3.131-1994
and ANSI SCSI-3 Standard X3T10/107D |
| Power Requirements |
4.85 - 5.25 Vdc
0.7 - 1.5 Amp (Configuration Dependant) |
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| Reliability |
| Reliability |
Data Reliability |
Built-in EDC / interleaved Reed Soloman ECC |
| Endurance |
1,000,000 cycles per FLASH manufacturer’s
specification |
| Undeleted Data Error |
<10-30 |
| MTBF |
500,000 hrs (MIL-STD-217 GB, per 512MB; preliminary) |
| BIT Features |
Yes, Power-up Self Test |
| Data Integrity |
10 Years |
| Form Factor |
6U, single slot per IEEE 1014-1987 Convection
6U single slot per IEEE 1101.2 Conduction |
| Front Panel |
Indicators: |
Power (green) – Busy (green)
Write Protected (yellow) |
| Switches: |
Write Protect Enable
SCSI Terminators On/Off |
| Weight |
500 - 800 grams (Configuration Dependant) |
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| Environmentals |
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Basic
(-00) |
Enhanced
(-10) |
Extended
(-20) |
Conduction
Cooled (-50) |
| Operating Temperature |
0°C to +60°C |
-20°C to +75°C |
-40°C to +85°C |
-40°C to +71°C |
| Storage Temperature |
-50°C to +85°C |
-50°C to +85°C |
-50°C to +85°C |
-50°C to +85°C |
| Altitude |
50,000 ft |
50,000 ft |
50,000 ft |
50,000 ft |
Ascent,
Descent |
10 m/s, 13 m/s |
10 m/s, 13 m/s |
10 m/s, 13 m/s |
10 m/s, 13 m/s |
| Humidity |
10 – 85% |
--- 10 – 100%
with condensation --- |
| Shock |
n/a |
--- 8g, 11ms, ½ sine
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20g, 11ms, ½ sine |
| Vibration |
n/a |
--- 0.04 g2/Hz, 5
to 2000 Hz --- |
| Stiffening Ribs |
No |
Yes |
Yes |
Yes |
| Conformal Coat |
No |
Yes |
Yes |
Yes |
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| This PDF contains a printable version of the hard copy catalog page. |
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vme.pdf
(312k) |
| Note: Viewing and printing PDF files requires the free
Adobe Acrobat Reader program. You can download Acrobat Reader from
Adobe's web
site. |
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