PolicyUnit Struktura

Definicja

Przestrzeń nazw:

System.IO.Log

Zestaw:

System.IO.Log.dll

Reprezentuje pomiar rozmiaru w zasadach magazynu dzienników.

public value class PolicyUnit

public struct PolicyUnit

type PolicyUnit = struct

Public Structure PolicyUnit

Dziedziczenie

Object

ValueType

PolicyUnit

Przykłady

W tym przykładzie pokazano, jak używać LogPolicy klasy i PolicyUnit struktury do ustawiania zasad dla sekwencji rekordów dziennika.

// 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
'

Uwagi

Struktura PolicyUnit reprezentuje pomiar rozmiaru w zasadach magazynu dzienników. Wyliczenie PolicyUnitType zawiera listę jednostek miary, które można przedstawić.

Możesz użyć Value właściwości , aby określić rozmiar miary. Aby określić jednostkę miary, użyj Type właściwości . Możesz przekonwertować inne typy danych na element PolicyUnit przy użyciu Percentage metod i Extents .

Konstruktory

PolicyUnit(Int64, PolicyUnitType)

Inicjuje PolicyUnit nowe wystąpienie struktury z określoną wartością i typem.

Właściwości

Type	Pobiera typ jednostki .PolicyUnit
Value	Pobiera wartość elementu PolicyUnit.

Metody

Equals(Object)	Wskazuje, czy to wystąpienie oraz określony obiekt są równe.
Extents(Int64)	PolicyUnit Tworzy typ Extents z określonej liczby.
GetHashCode()	Udostępnia unikatowy kod skrótu dla tego obiektu.
Percentage(Int64)	PolicyUnit Tworzy typ Percentage z określonej liczby.
ToString()	Zwraca reprezentację ciągu tego obiektu.

Operatory

Equality(PolicyUnit, PolicyUnit)	Porównuje dwa PolicyUnit wystąpienia, aby określić, czy są one równe.
Inequality(PolicyUnit, PolicyUnit)	Porównuje dwa PolicyUnit wystąpienia, aby określić, czy nie są równe.

Zobacz też

• LogPolicy
• PolicyUnitType