Dynamic disk space management by multiple database server instances in a cluster configuration
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 24, 2007
Grant Date -
Nov 27, 2003
app pub date -
May 8, 2003
filing date -
May 24, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and apparatus for the dynamic management of disk space by multiple database server instances in a cluster configuration is disclosed. A segment is partitioned. Each partition is associated with a bitmap block. A partition's bitmap block indicates the freeness of the partition's data blocks. A partition's bitmap block may be owned by one server instance at a time. After determining from a partition's bitmap block where free disk space is located within the partition, the partition's bitmap block's owner may allocate the free disk space for the owner's use. A bitmap block may become owned by different server instances at different times. When a server instance ceases to actively use its bitmap block, another server instance may 'steal' the bitmap block. Thus, multiple server instances may allocate disk space in the same partition over time, preventing disk space waste.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully