FileRecordSequence.RestartSequenceNumber Property

Definition

Namespace:

System.IO.Log

Assembly:

System.IO.Log.dll

Gets the sequence number of the most recently written restart area.

public:
 property System::IO::Log::SequenceNumber RestartSequenceNumber { System::IO::Log::SequenceNumber get(); };

public System.IO.Log.SequenceNumber RestartSequenceNumber { get; }

member this.RestartSequenceNumber : System.IO.Log.SequenceNumber

Public ReadOnly Property RestartSequenceNumber As SequenceNumber

Property Value

SequenceNumber

The sequence number of the most recently written restart area.

Implements

RestartSequenceNumber

Exceptions

ObjectDisposedException

The property was accessed after the sequence has been disposed of.

Remarks

A restart area is used to temporarily store information containing a client's last checkpoint operation. The Common Log File System (CLFS) maintains two restart areas to guarantee that at least one valid area is always available. When a recovery is necessary, the CLFS reads its restart area and all the data from the last checkpoint operation. This data initializes the transaction table, dirty pages table, and open file table so they can be used in the recovery process.