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Shared access levels of BMC products
BMC product jobs register Db2 objects in the BMCSYNC-table.
The registering product assigns a sharing level to each registered object. The sharing level controls access to that object from other BMC products. For partitioned Db2 spaces, registration is performed at the partition level.
The BMCSYNC-table allows multiple BMC products (or multiple instances of a product) to operate concurrently on different partitions of a Db2 space if no nonpartitioning indexes are involved. In addition, some BMC products can operate concurrently on the same object or partition.
For information about which products can operate concurrently, see the Shared access levels of BMC products table.
For additional serialization and concurrency issues for a specific product, see the space for that product.
The Access level column in the following table refers to the value of the SHRLEVEL column name in the BMCSYNC-table. The level can be one of the following values:
- S indicates shared access. Any other product that registers with shared access (S) can run against the object.
- X indicates exclusive access. No other product can run against the object.
- A blank value indicates that no status is requested and any other product can run against the object.
The following table describes the shared access levels of BMC products:
Product | Access level | Additional information |
|---|---|---|
CHECK PLUS | S | None |
DASD MANAGER PLUS (BMCSTATS) | S |
|
LOADPLUS | X | If you specify PART, LOADPLUS registers only the specified partitions with exclusive access (X). If no nonpartitioned indexes exist on the table space, you can run other products on different partitions while running this job. |
BMC AMI Check | S | None |
BMC AMI Copy | S or blank | If you specify COPY IMAGECOPY, BMC AMI Copy registers the object with no access status (blank). Otherwise, BMC AMI Copy registers the object with shared access (S). |
BMC AMI Load | X | If you are loading specific partitions, BMC AMI Load registers only the specified partitions with exclusive access (X). |
BMC AMI Recover | X, S, or blank | BMC AMI Recover registers an object with shared access (S) under the following conditions:
BMC AMI Recover registers an object with no access status (blank) if you specify the following commands or options:
BMC AMI Recover registers the object with exclusive access (X) in all other cases. |
BMC AMI Reorg | X | If you are loading specific partitions, BMC AMI Reorg registers only the specified partitions with exclusive access (X). |
BMC AMI Stats | S | None |
BMC AMI Unload | S | None |
RECOVERY MANAGER | S | None |
REORG PLUS | X | If you specify PART, REORG PLUS registers only the specified partitions with exclusive access (X). If no nonpartitioned indexes exist on the table space, you can run other products on different partitions while running this job. |
UNLOAD PLUS | S | None |