9-Track Tape Conversion
|
9-Track
Tape reels come is several sizes which hold increasing
amounts of data.
The most common tapes are approximately 10.5" in diameter and
hold 2400' of
tape material. IBM 3420 were among the most common 9-track
systems.
Below is a brief description of the capacity of 2400' 9track tape reels.
| Density |
Length |
Capacity |
Comments |
| 800 BPI |
2400 ft |
20 MB |
Not common was replaced with higher capacity. |
| 1600 BPI |
2400 ft |
40 MB |
Common, was the main density for many years. |
| 3200 BPI |
2400 ft |
90 MB |
Very uncommon, was quickly replaced by 6250
BPI. |
| 6250 BPI |
2400 ft |
170 MB |
Most common in use today. Many stored
libraries are written in this density. |
9Track
Tape Conversion Magnetic reel tapes have been around for
many years.
This media predates the PC. It can support densities from
800 BPI ( Bits Per Inch) to 6250 BPI.
Tape density is also referred to in CPI (Characters Per Inch).
The 9 tracks on the tape are actually
1 bit per track. There are 8 data bits which make one byte
(or character) and the 9th bit for parity.
The most common densities found today are 1600 CPI and 6250 CPI. The amount
of data a tape can
hold is also effected by the size of the data blocks
written to the
tape. In general, the larger the
block (group of records) the more information will fit on
the tape. Most tapes are written in blocks
smaller than 65,536 bytes. We can read large blocks which
exceed this limit.
The most helpful information to
provide us for preparing a bid:
Number of tapes
Record length, block size, blocking factor
Is tape in labeled format?
Density ( 800 BPI / 1600 BPI / 6250 BPI )
Approximate amount of data
Tape write method such as:
Tape write system such as:
ANSI / IBM Labeled
UNIX
Fixed block /
record
VAX / VMS
Variable
records
DEC
UNIX TAR
IBM
VAX / VMS Saveset or Backup DOS / PC
Tape
dump
Windows / PC
Logical files
Unlabeled tape.
This information is helpful for the
purposes of providing an estimate but is not required
in order for us to process the data. If you have
immediate questions or concerns
please feel free to give us a call toll free at (888)
747-8923.
Tape identification information.
Brand
Description
Capacity
Length
|
BASF - 9-track
|
Easy Load Gold
|
21 MB
|
300 FT
|
|
BASF - 9-track
|
Easy Load Gold
|
45 MB
|
600 FT
|
|
BASF - 9-track
|
Easy Load Gold
|
170 MB
|
2400 FT
|
|
BASF - 9-track
|
Easy Load Gold
|
250 MB
|
3600 FT
|
|
BASF - 9-track
|
Endura Tape Seal
|
21 MB
|
300 FT
|
|
BASF - 9-track
|
Endura Tape Seal
|
45 MB
|
600 FT
|
|
BASF - 9-track
|
Endura Tape Seal
|
170 MB
|
2400 FT
|
|
BASF - 9-track
|
Endura Tape Seal
|
250 MB
|
3600 FT
|
|
IMATION - 9-track
|
Tape Seal
|
21 MB
|
300 FT
|
|
IMATION - 9-track
|
Tape Seal
|
45 MB
|
600 FT
|
|
IMATION - 9-track
|
Tape Seal
|
170 MB
|
2400 FT
|
|
IMATION - 9-track
|
Easy Load / Easy Load II
|
21 MB
|
300 FT
|
|
IMATION - 9-track
|
Easy Load / Easy Load II
|
45 MB
|
600 FT
|
|
IMATION - 9-track
|
Easy Load / Easy Load II
|
170 MB
|
2400 FT
|
|
IMATION - 9-track
|
Easy Load / Easy Load II
|
250 MB
|
3600 FT
|
|
MEMOREX - 9-track
|
MRX / MRXV / MRX Plus
|
21 MB
|
300 FT
|
|
MEMOREX - 9-track
|
MRX / MRXV / MRX Plus
|
45 MB
|
600 FT
|
|
MEMOREX - 9-track
|
MRX / MRXV / MRX Plus
|
170 MB
|
2400 FT
|
|
SCOTCH - 9-track
|
6250 CPI
|
170 MB
|
2400 FT
|
|
GRAHAM MAGNETICS 9-track
|
Summit / Epoch
|
170 MB
|
2400 FT
|
|
GRAHAM MAGNETICS 9-track
|
Summit / Epoch
|
250 MB
|
3600 FT
|
|
IBM - 9-track
|
Multi-System Tape
|
21 MB
|
300 FT
|
|
IBM - 9-track
|
Multi-System Tape
|
45 MB
|
600 FT
|
|
IBM - 9-track
|
Multi-System Tape
|
170 MB
|
2400 FT
|
We do not sell media at
this time. Don't see what you have? Give us a call toll free at (888)
747-8923.
Estimate
Request
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2005-2008 Data Conversion
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