Producing an image copy of a database object based on information within database buffer pools

A database system comprising:

• a memory;
• a buffer pool;
• a processor configured to:
• determine one or more portions of an object that are active and reside within the buffer pool and copy the determined portions of the object from the buffer pool;
• after copying the one or more portions of the object determined to be active from the buffer pool, copy remaining portions of the object that are non-active from database storage, wherein the buffer pool remains available for processing requests to the database system during the copying of the non-active portions;
• and
• produce a copy of the object from the copied object portions,
• wherein the processor is configured to copy the remaining portions of the object by copying the remaining portions of the object into a plurality of sub-buffers in parallel and allocating one or more temporary sub-buffers to store the remaining object portions.

A computer program product for copying an object of a database system, comprising a non-transitory computer readable storage medium including a computer readable program, wherein the computer readable program when executed on a processor causes the processor to perform:

• determining one or more portions of the object that are active and reside within a buffer pool of the database system and copying the determined portions of the object from the buffer pool;
• after copying the one or more portions of the object determined to be active from the buffer pool, copying remaining portions of the object that are non-active from database storage, wherein the buffer pool remains available for processing requests to the database system during the copying of the non-active portions;
• and
• producing a copy of the object from the copied object portions,
• wherein the computer readable program causes the processor to copy the remaining portions of the object by copying the remaining portions of the object into a plurality of sub-buffers in parallel and allocating one or more temporary sub-buffers to store the remaining object portions.