Enabling Checkread Verification - HP 9000 200 Series Manual

Writing Volume Labels
To write the label "MY _
VOL'~
onto the current default volume, you could execute:
PRINT LABEL "MY_VOL"
To change the volume label on a different volume, you will need to specify the volume:
PRINT LABEL "MY_VOL" TO ": ,700,1"
Enabling Checkread Verification
Normally, the BASIC system writes data into files and does not verify that the data was
written without error. The reliability of mass storage devices is generally high enough to
justify this. However, if you want the system to perform a read-after-write verification
of data written into files, you can use this statement:
CHECK READ ON
Data subsequently written into all files by the following statements is subject to this
verification:
COPY PRINT LABEL RE-SAVE CREATE ASCII PROTECT STORE CREATE
BDAT PURGE RE-STORE OUTPUT RENAME TRANSFER SAVE
Note, however, that CHECKREAD does not affect files being written through the
PRINTER IS or PLOTTER IS statements. For SRM systems, there is already a
checkread operation performed automatically by the SRM controller; therefore, using
the CHECKREAD statement has no effect with SRM.
To disable this feature, execute:
CHECKREAD OFF
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