PolicyUnit 構造体

定義

名前空間:

System.IO.Log

アセンブリ:

System.IO.Log.dll

ログ ストア ポリシーでのサイズ測定値を表します。

public value class PolicyUnit

public struct PolicyUnit

type PolicyUnit = struct

Public Structure PolicyUnit

継承

Object

ValueType

PolicyUnit

例

この例では、LogPolicy クラスおよび PolicyUnit 構造体を使用してログのレコード シーケンスのポリシーを設定する方法を示します。

// 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
'

注釈

PolicyUnit 構造体は、ログ ストア ポリシーでのサイズ測定値を表します。 PolicyUnitType 列挙体には、表すことができる単位がリストされます。

測定値のサイズを確認するには、Value プロパティを使用します。 単位を確認するには、Type プロパティを使用します。 PolicyUnit メソッドおよび Percentage メソッドを使用して、他のデータ型を Extents に変換できます。

コンストラクター

PolicyUnit(Int64, PolicyUnitType)

値と型を指定して、PolicyUnit 構造体の新しいインスタンスを初期化します。

プロパティ

Type	PolicyUnit の単位型を取得します。
Value	PolicyUnit の値を取得します。

メソッド

Equals(Object)	このインスタンスと指定したオブジェクトが等しいかどうかを示します。
Extents(Int64)	指定の番号から PolicyUnit 型の Extents を作成します。
GetHashCode()	このオブジェクトの一意のハッシュ コードを取得します。
Percentage(Int64)	指定の番号から PolicyUnit 型の Percentage を作成します。
ToString()	このオブジェクトの文字列形式を返します。

演算子

Equality(PolicyUnit, PolicyUnit)	2 つの PolicyUnit インスタンスを比較し、それらが等しいかどうかを確認します。
Inequality(PolicyUnit, PolicyUnit)	2 つの PolicyUnit インスタンスを比較し、それらが等しくないかどうかを確認します。

こちらもご覧ください

• LogPolicy
• PolicyUnitType