PolicyUnit PolicyUnit PolicyUnit PolicyUnit Struct

Définition

Représente une mesure de la taille dans une stratégie du magasin des journaux.Represents a size measurement in a log store policy.

public value class PolicyUnit
public struct PolicyUnit
type PolicyUnit = struct
Public Structure PolicyUnit
Héritage
PolicyUnitPolicyUnitPolicyUnitPolicyUnit

Exemples

Cet exemple indique comment utiliser la classe LogPolicy et la structure PolicyUnit pour définir la stratégie d'une séquence d'enregistrement du journal.This example shows how to use the LogPolicy class and PolicyUnit structure to set policy for a log record sequence.

// SET LOG POLICY

LogPolicy policy = sequence.LogStore.Policy;

// Set AutoGrow policy. This enables the log to automatically grow
// when the existing extents are full. New extents are added until
// we reach the MaximumExtentCount extents.
// AutoGrow policy is supported only in Windows Vista and not available in R2.

//policy.AutoGrow = true;

// Set the Growth Rate in terms of extents. This policy specifies
// "how much" the log should grow. 
policy.GrowthRate = new PolicyUnit(2, PolicyUnitType.Extents);

// Set the AutoShrink policy. This enables the log to automatically
// shrink if the available free space exceeds the shrink percentage. 
// AutoGrow/shrink policy is supported only in Windows Vista and not available in R2.

//policy.AutoShrinkPercentage = new PolicyUnit(30, PolicyUnitType.Percentage);

// Set the PinnedTailThreshold policy.
// A tail pinned event is triggered when there is no
// log space available and log space may be freed by advancing the base.
// The user must handle the tail pinned event by advancing the base of the log. 
// If the user is not able to move the base of the log, the user should report with exception in
// the tail pinned handler.
// PinnedTailThreashold policy dictates the amount of space that the TailPinned event requests 
// for advancing the base of the log. The amount of space can be in percentage or in terms of bytes 
// which is rounded off to the nearest containers in CLFS. The default is 35 percent.


policy.PinnedTailThreshold = new PolicyUnit(10, PolicyUnitType.Percentage);

// Set the maximum extents the log can have.
policy.MaximumExtentCount = 6;

// Set the minimum extents the log can have.
policy.MinimumExtentCount = 2;

// Set the prefix for new containers that are added. 
// when AutoGrow is enabled.
//policy.NewExtentPrefix = "MyLogPrefix";

// Set the suffix number for new containers that are added.
// when AutoGrow is enabled. 
policy.NextExtentSuffix = 3;

// Commit the log policy.
policy.Commit();

// Refresh updates the IO.Log policy properties with current log policy 
// set in the log. 
policy.Refresh();

// LOG POLICY END
// 
' SET LOG POLICY

Dim policy As LogPolicy = sequence.LogStore.Policy

' Set AutoGrow policy. This enables the log to automatically grow
' when the existing extents are full. New extents are added until
' we reach the MaximumExtentCount extents.
' AutoGrow policy is supported only in Windows Vista and not available in R2.

'policy.AutoGrow = true;

' Set the Growth Rate in terms of extents. This policy specifies
' "how much" the log should grow. 
policy.GrowthRate = New PolicyUnit(2, PolicyUnitType.Extents)

' Set the AutoShrink policy. This enables the log to automatically
' shrink if the available free space exceeds the shrink percentage. 
' AutoGrow/shrink policy is supported only in Windows Vista and not available in R2.

'policy.AutoShrinkPercentage = new PolicyUnit(30, PolicyUnitType.Percentage);

' Set the PinnedTailThreshold policy.
' A tail pinned event is triggered when there is no
' log space available and log space may be freed by advancing the base.
' The user must handle the tail pinned event by advancing the base of the log. 
' If the user is not able to move the base of the log, the user should report with exception in
' the tail pinned handler.
' PinnedTailThreashold policy dictates the amount of space that the TailPinned event requests 
' for advancing the base of the log. The amount of space can be in percentage or in terms of bytes 
' which is rounded off to the nearest containers in CLFS. The default is 35 percent.


policy.PinnedTailThreshold = New PolicyUnit(10, PolicyUnitType.Percentage)

' Set the maximum extents the log can have.
policy.MaximumExtentCount = 6

' Set the minimum extents the log can have.
policy.MinimumExtentCount = 2

' Set the prefix for new containers that are added. 
' when AutoGrow is enabled.
'policy.NewExtentPrefix = "MyLogPrefix";

' Set the suffix number for new containers that are added.
' when AutoGrow is enabled. 
policy.NextExtentSuffix = 3

' Commit the log policy.
policy.Commit()

' Refresh updates the IO.Log policy properties with current log policy 
' set in the log. 
policy.Refresh()

' LOG POLICY END
' 

Remarques

La structure PolicyUnit représente une mesure de la taille dans une stratégie du magasin des journaux.The PolicyUnit structure represents a size measurement in a log store policy. L'énumération PolicyUnitType répertorie les unités de mesure qui peuvent être représentées.The PolicyUnitType enumeration lists the units of measurement that can be represented.

Vous pouvez utiliser la propriété Value pour déterminer la taille de la mesure.You can use the Value property to determine the size of the measurement. Pour déterminer l'unité de mesure, utilisez la propriété Type.To determine the unit of measurement, use the Type property. Vous pouvez convertir d'autres types de données en PolicyUnit à l'aide des méthodes Percentage et Extents.You can convert other data types to a PolicyUnit by using the Percentage and Extents methods.

Constructeurs

PolicyUnit(Int64, PolicyUnitType) PolicyUnit(Int64, PolicyUnitType) PolicyUnit(Int64, PolicyUnitType) PolicyUnit(Int64, PolicyUnitType)

Initialise une nouvelle instance de la structure PolicyUnit avec la valeur et le type spécifiés.Initializes a new instance of the PolicyUnit structure with the specified value and type.

Propriétés

Type Type Type Type

Obtient le type d'unité de PolicyUnit.Gets the unit type of the PolicyUnit.

Value Value Value Value

Obtient la valeur de PolicyUnit.Gets the value of the PolicyUnit.

Méthodes

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Indique si cette instance et un objet spécifié sont égaux.Indicates whether this instance and a specified object are equal.

Extents(Int64) Extents(Int64) Extents(Int64) Extents(Int64)

Crée un PolicyUnit de type Extents à partir du nombre spécifié.Creates a PolicyUnit of type Extents from the specified number.

GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Fournit un code de hachage unique pour cet objet.Provides a unique hash code for this object.

Percentage(Int64) Percentage(Int64) Percentage(Int64) Percentage(Int64)

Crée un PolicyUnit de type Percentage à partir du nombre spécifié.Creates a PolicyUnit of type Percentage from the specified number.

ToString() ToString() ToString() ToString()

Retourne une représentation sous forme de chaîne de cet objet.Returns a string representation of this object.

Opérateurs

Equality(PolicyUnit, PolicyUnit) Equality(PolicyUnit, PolicyUnit) Equality(PolicyUnit, PolicyUnit) Equality(PolicyUnit, PolicyUnit)

Compare deux instances PolicyUnit pour déterminer s'ils sont égaux.Compares two PolicyUnit instances to determine whether they are equal.

Inequality(PolicyUnit, PolicyUnit) Inequality(PolicyUnit, PolicyUnit) Inequality(PolicyUnit, PolicyUnit) Inequality(PolicyUnit, PolicyUnit)

Compare deux instances PolicyUnit pour déterminer si elles ne sont pas égales.Compares two PolicyUnit instances to determine whether they are not equal.

S’applique à

Voir aussi