What does it mean to quiesce a database?

What does it mean to quiesce a database?

What does it mean to quiesce a database?

Occasionally you might want to put a database in a state that allows only DBA transactions, queries, fetches, or PL/SQL statements. Such a state is referred to as a quiesced state, in the sense that no ongoing non-DBA transactions, queries, fetches, or PL/SQL statements are running in the system.

What is DB2 quiesce?

To Quiesce means to pause/alter an application/device to allow the application/device to achieve a consistent state. In terms of DB2 the Quiesce command should force all the users off the specified database and should flush all the buffers to disk (been a while since I’ve used DB2).

Why do we need quiescing?

Quiescing indicates pausing or altering the state of running processes on a computer, particularly those that might modify information stored on disk during a backup, to guarantee a consistent and usable backup.

What is quiescing in VMware?

What is Quiescing? According to a VMware® Knowledge Base article, “Quiescing a file system is a process of bringing the on-disk data of a physical or virtual computer into a state suitable for backups.

Who can access database when DB is quiesce?

QUIESCE DATABASE results in all objects in the database being in the quiesced mode. Only the allowed user or group and SYSADM, SYSMAINT, DBADM, or SYSCTRL will be able to access the database or its objects.

What is quiesce point?

A quiesce point is a point at which data is consistent across these objects. You can later recover a table space to its quiesce point by using the RECOVER utility.

What is snapshot Quiescing?

A quiesced snapshot is one where the VMWare Tools are used to access the OS and gather an application consistent snapshot. In non-Windows, and pre-2008 Windows operating systems, the tools include a VMWare VSS writer. In Server 2008+, the Windows VSS writers are used instead.

What does quiesce guest file system do?

Quiescing the guest file system is the process of getting the data on a VM into a state suitable for backups. Backup solutions use VM snapshots to copy data from a VM. The operation of quiescing a VM ensures that a snapshot represents a consistent view of the guest file system state at a specific point in time.

Why do we need Quiescing?

What is application Quiescing?

To quiesce is to pause or alter a device or application to achieve a consistent state, usually in preparation for a backup or other maintenance.

What is Quiescing in vmware?

Quiescing a file system is a process of bringing the on-disk data of a physical or virtual computer into a state suitable for backups. This process might include such operations as flushing dirty buffers from the operating system’s in-memory cache to disk, or other higher-level application-specific tasks.

What is quiesce guest file system?