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Since HP now bundles STORE-to-disc with MPE (although you still have to buy TurboSTORE to use compression), we very highly recommend STORE-to- disc for all MPE-to- MPE bundles, tar+gzip for MPE-to-Unix, tar+gzip for MPE-to-Windows (if you can convince the Windows users to use something like DragNZip, which understands tar and gzip formats), or PKZIP/iX if you want to distribute files to unknown Windows users.
(Please send additions/correction/suggestions to info@resource3000.com.)
| Tool Name |
Availability |
Platforms |
Preserves MPE file attributes |
Preserves MPE groups / accounts |
Upload flexibility |
Relative compression |
Compression speed |
| LZW |
Freeware |
MPE, Unix, PC, Mac, others |
Yes |
Yes |
Best |
3 |
Best |
| MOVER |
Bundled |
MPE |
Yes |
Yes |
Inflexible |
4 |
(not rated) |
| PKZIP/iX |
Freeware |
MPE,PC |
No |
No |
(unknown) |
(not rated) |
(not rated) |
| tar + compress (-cvfz) |
Freeware |
MPE, Unix, PC |
Yes |
Yes |
Inflexible |
2 |
(not rated) |
| tar + gzip |
Freeware |
MPE, Unix, PC |
Yes |
Yes |
Inflexible |
1 (Best) |
Worst |
| Backup+ from ORBiT |
$Commercial$ |
MPE, HP-UX |
Yes |
Yes |
(unknown) |
(not rated) |
(not rated) |
| Quark+ from Quest Software |
$Commercial$ |
MPE |
Yes |
Yes |
(unknown) |
(not rated) |
(not rated) |
| HP's TurboSTORE
store-to-disk |
Bundled |
MPE |
Yes |
Yes |
(unknown) |
(not rated) |
(not rated) |
| TurboSTORE store-to-disk ;compress= high |
$Commercial$ |
MPE |
Yes |
Yes |
(unknown) |
(not rated) |
(not rated) |
| TurboSTORE store-to-disk +compress (-cvfz) |
Bundled |
MPE |
Yes |
Yes |
(unknown) |
(not rated) |
(not rated) |
| TurboSTORE store-to-disk +gzip |
Bundled |
MPE |
Yes |
Yes |
(unknown) |
(not rated) |
(not rated) |
1. "Preserves MPE file attributes": "tar" doesn't support NM KSAM files or IMAGE databases.
2. "Upload flexibility": LZW can read archives that are fixed or variable, any record size, with or without the right filecode.
3. "Relative compression": we compressed a set of files with each tool, and ranked the results.
4. "tar" doesn't do compression, so we combined it with the POSIX "compress" and GNU "gzip".
5. "Quark+" has not been tested -- based on marketing literature.
Some data, from packaging the RAMUSAGE files:
| Tool Name |
Elapsed Time |
CPU Time |
# Bytes |
| tar & gzip |
11.311 |
5.32 |
267611 |
| tar & compress |
7.913 |
3.54 |
370361 |
| tar (z option) |
7.022 |
3.21 |
370688 |
| LZW |
2.624 |
1.15 |
388096 |
| MOVER_539 |
2.077 |
0.80 |
692407 |
| tar |
2.017 |
0.75 |
882176 |
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