Lock Management › Locking Within a Data Sharing Group

Locking Within a Data Sharing Group

Within a data sharing group, locking is used to control inter-member access to shared resources, just as it is used to control access to resources within a central version. The basic locking scheme used within a central version is extended for data sharing in the following ways:

• Global transaction locks are used to control inter-member access
• An additional level is introduced in the locking hierarchy
• Page locks are used to protect database pages while they reside in a buffer pool

Note: For more information about data sharing, see the CA IDMS System Operations Guide.