Registeronly; Remoteiosize; Guidelines - HP BACKCOPY Reference Manual

REGISTERONLY

The REGISTERONLY option directs RESTORE to restore a program without recompiling it. This
option is valid only when the SQLCOMPILE option is ON.
REGISTERONLY [ ON | OFF ]
ON
directs the SQL compiler to register a program that was previously compiled with SQL in the
specific catalog without compiling any SQL statements in the program. The SQL compiler marks
the program file label as sensitive to SQL and valid to SQL. The program retains its existing
execution plans.
You can use this option to install a program in a catalog after you have compiled the program
with SQL and moved the program. Although the REGISTERONLY option requires you to run
the compiler, this option is much faster than explicitly recompiling the entire program.
If the program was not previously compiled with SQL, the operation fails with SQL error 21 15.
OFF
directs the SQL compiler to explicitly SQL compile the program and perform all SQL compiler
functions.
NOTE: For more information, see the SQL/MP Installation and Management Guide.

REMOTEIOSIZE

The REMOTEIOSIZE option specifies the maximum size of each data block transferred between
systems during a RESTORE process. This option is needed mainly for SQL files where the small
default remote I/O transfer size can cause a performance problem.
REMOTEIOSIZE data-block-size
data-block-size
is the maximum number of 1024-byte increments (blocks) in each remote I/O transfer, specified
as 2, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, or 52.

Guidelines

REMOTEIOSIZE values above four (4096 bytes) cause RESTORE to use BulkIO logic.
The default SQL remote I/O transfer size on the NonStop operating system is 4 KB (4096
bytes). Local I/O transfer size for SQL objects is 28 KB.
Use of the BLOCKSIZE option when creating the BACKUP limits the available REMOTEIOSIZE
values.
For example, specifying a BLOCKSIZE of 28 in the BACKUP command limits the remote I/O
read operation transfers to 28 KB blocks even if you specify a REMOTEIOSIZE of 52 in your
RESTORE command. When restoring, REMOTEIOSIZE cannot increase the remote I/O write
operation transfer size beyond what BACKUP put on the tape. Therefore, a REMOTEIOSIZE
greater than the BLOCKSIZE is reduced internally. RESTORE does not display any messages
when the BLOCKSIZE overrides the REMOTEIOSIZE in this manner.
BLOCKSIZE values larger than 28 KB are only supported by the 3215 and 3216 controllers.
All other transfers must be in the range of 2 through 28 KB. BLOCKSIZE can only be used if
both the backup and restore are done on the same type of drive.
RESTORE Options 151