| mvBase
Tech Tip: |
#
mv116 |
| Pertinent
Release(s): |
All
Releases |
| Pertinent
Windows O/S: |
Windows
9x/NT |
Migrating
Accounts from General Automation R91 and Power95plus to mvBase
(Transferring data)
When
transferring data from other products to mvBase using tapes,
follow the procedure appropriate to your environment.
R91
and Power95plus allow larger tape block sizes than mvBase can
read.
Assuming
¼’’ Tape as the medium of choice:-
On
the R91 or Power95plus system
- Put
in a new ¼" tape cartridge and perform SET-CT <unit#>
(default is 0)
(be sure the drive is clean and the tape media is compatible
with the tape drives on both the R91 and mvBase systems.)
- Enter
T-ATT 16384
(This is the size which will be used to read the tape on
the mvBase system later)
This will set the block size for ¼" tapes (R91 normally
defaults block size to 24576 for ¼" tapes)
- Save
the desired accounts by using the SAVE verb with the backward
compatible (C) option. E.g.
SAVE SYSTEM <account_name> (CTIG
for one account
or SAVE SYSTEM * (CTIG for ALL
accounts
Note:
The C option saves the data in backward compatible
format, the T option causes the data to be saved
to tape, the I option causes a display of the group/segment
count being saved, the G option causes the SAVE to
skip groups that contain GFEs.
- To
verify that the taped saved correctly, rewind the tape and
perform RESTORE SYSTEM * (V.
The V option just reads the tape data and checks
the format for correct consistency..
General
Notes:
BASIC
Object code is NOT saved to tape.
Binary
linked items are NOT saved to tape.
Binary
items that are not in a DC file are also NOT saved.
Items
over 32K are NOT saved to tape. Explicit T-DUMPs and T-LOADs
of these items in each file should be used to transfer these
between the systems.
The
SAVE-LOGS should ALWAYS be viewed after the SAVE in order to
identify any problems as well as data that was not saved. This
can be found in the System Manager’s SAVE-RESTORE menu.
Because
each system and version varies slightly, the system manuals
should be reviewed for any differences that may exist. This
information is presented as a generic procedure for most systems.
On
the mvBase system
Floppies
have a max block size of 500,
1/4"
cartridges have a max block size of 32256, but defaults to 16896.
This procedure will use a block size of 16384 (16K)
though, explicitly.
4mm
DAT Tapes default to 16384.
The
mvBase system (and some media formats) has a maximum block size
of 32256.
Assuming
¼" tape:-
- Enter
T-SELECT x (where x is the Logical Tape Unit # of
the device you wish you use).
- Enter
T-ATT 16384.
- Perform
the ACCOUNT-RESTORE, or ADD-ACCOUNTS command, (or use the
RESTORE verb directly if you are familiar with its options).
- Run
the UPGRADE program on each restored account from the SYSPROG
account.
- Recompile
and recatalog all BASIC programs.
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