HP XP20000XP24000 Disk Array - Manual (Page 46)

2-28 About Cross-OS File Exchange Operations
Hitachi USP V Cross-OS File Exchange User’s Guide
FXotm with Variable-Length Record Format
FXotm operations can be performed on variable-length source files only if
delimiters have already been added to the source file (e.g., from a previous
FXmto operation). If a variable-length source file without delimiters is
processed, FCU will use the maximum record length to construct the target
data entities, thereby corrupting the data and rendering the dataset unusable.
FCU extracts but does not add delimiters to FXotm source files.
With delimiters. The figure below shows an FXotm operation for a variable-
length source file with delimiters. FCU extracts and transfers the data entities
to the target dataset, and automatically adds the four-byte RL field. The
delimiters are not transferred. The target dataset must have variable-length
record format.
Open-System Source File Target Dataset
Record length – 2 or 1 byte Record length
Data entity 1 D RL Record 1: Data entity 1
Data entity 2 D → RL Record 2: Data entity 2
Data entity 3 D RL Record 3: Data entity 3
Data entity + 1 or 2 bytes
Figure 2-19 FXotm with Variable-Length Records: Delimiters
If the length of any data entity in a UNIX source file is greater than the
maximum record length minus one byte (CR or LF delimiter), FCU aborts the
operation and reports an error. If the length of any data entity in a Windows
2000/2003/Windows NT source file is greater than the maximum record length
minus two bytes (CR+LF delimiter), FCU aborts the operation and reports an
error.