Estou tentando obter alguns resultados sensatos do recurso de desduplicação do Server 2012 R2 e falhar repetidamente. Eu tenho dois grandes volumes (4 + 2 TB) expostos como D: e E: respectivamente. Os volumes são atribuídos como armazenamento de cluster a dois recursos de cluster de servidor de arquivos diferentes (não sei se isso muda nada) e os discos estão on-line na máquina que estou tentando habilitar a dedução.
Enable-DedupVolume D:
Enable-DedupVolume E:
Set-DedupVolume -Volume D: -MinimumFileAgeDays 0
Set-DedupVolume -Volume E: -MinimumFileAgeDays 0
Start-DedupJob D: -Type Optimization
Start-DedupJob E: -Type Optimization
Após alguns minutos, os dois trabalhos de otimização estão concluídos. Enquanto isso, há alguma carga de leitura de disco para os dois discos. No final, os eventos que estou recebendo no log da Deduplicação indicam que nada foi desduplicado:
Log Name: Microsoft-Windows-Deduplication/Operational
Source: Microsoft-Windows-Deduplication
Date: 12/2/2015 11:36:02 AM
Event ID: 6153
Task Category: None
Level: Information
Keywords:
User: SYSTEM
Computer: wss-01.example.com
Description:
Optimization job has completed.
Volume: D: (\?\Volume{73180747-4bf5-4292-86fd-8e8fc4d076c4}\)
Error code: 0x0
Error message:
Savings rate: 0
Saved space: 0
Volume used space: 2867461320704
Volume free space: 1530452017152
Optimized file count: 0
In-policy file count: 0
Job processed space (bytes): 0
Job elapsed time (seconds): 37
Job throughput (MB/second): 0
Log Name: Microsoft-Windows-Deduplication/Operational
Source: Microsoft-Windows-Deduplication
Date: 12/2/2015 11:38:26 AM
Event ID: 6153
Task Category: None
Level: Information
Keywords:
User: SYSTEM
Computer: wss-01.example.com
Description:
Optimization job has completed.
Volume: E: (\?\Volume{a3f85da5-283e-4ed4-81c0-2c0fd163b1c3}\)
Error code: 0x0
Error message:
Savings rate: 0
Saved space: 0
Volume used space: 2068610711552
Volume free space: 130142007296
Optimized file count: 0
In-policy file count: 0
Job processed space (bytes): 0
Job elapsed time (seconds): 686
Job throughput (MB/second): 0
Os volumes de dados são bastante populosos - D: é principalmente imagens ISO e instaladores de diferentes tipos, enquanto E: é típico de dados domésticos de usuários, então eu esperaria algumas economias (pelo menos mais de 0 ) mostrar. A invocação de Update-DedupStatus
para qualquer um dos volumes não está fazendo muito. O resultado get-dedupstatus
indica que nenhum arquivo é considerado "na política" para deduplicação:
PS C:\> get-dedupstatus | select-object -Property *
ObjectId : \?\Volume{a3f85da5-283e-4ed4-81c0-2c0fd163b1c3}\
Capacity : 2198752718848
FreeSpace : 130142007296
InPolicyFilesCount : 0
InPolicyFilesSize : 0
LastGarbageCollectionResult :
LastGarbageCollectionResultMessage :
LastGarbageCollectionTime :
LastOptimizationResult : 0
LastOptimizationResultMessage : The operation completed successfully.
LastOptimizationTime : 12/2/2015 11:45:10 AM
LastScrubbingResult :
LastScrubbingResultMessage :
LastScrubbingTime :
OptimizedFilesCount : 0
OptimizedFilesSavingsRate : 0
OptimizedFilesSize : 0
SavedSpace : 0
SavingsRate : 0
UnoptimizedSize : 2068610711552
UsedSpace : 2068610711552
Volume : E:
VolumeId : \?\Volume{a3f85da5-283e-4ed4-81c0-2c0fd163b1c3}\
PSComputerName :
CimClass : ROOT/Microsoft/Windows/Deduplication:MSFT_DedupVolumeStatus
CimInstanceProperties : {Capacity, FreeSpace, InPolicyFilesCount, InPolicyFilesSize...}
CimSystemProperties : Microsoft.Management.Infrastructure.CimSystemProperties
ObjectId : \?\Volume{73180747-4bf5-4292-86fd-8e8fc4d076c4}\
Capacity : 4397913337856
FreeSpace : 1530452013056
InPolicyFilesCount : 0
InPolicyFilesSize : 0
LastGarbageCollectionResult : 5657346
LastGarbageCollectionResultMessage : There are no actions associated with this job.
LastGarbageCollectionTime : 12/2/2015 11:58:12 AM
LastOptimizationResult : 0
LastOptimizationResultMessage : The operation completed successfully.
LastOptimizationTime : 12/2/2015 11:45:10 AM
LastScrubbingResult : 0
LastScrubbingResultMessage : The operation completed successfully.
LastScrubbingTime : 11/28/2015 3:45:07 AM
OptimizedFilesCount : 0
OptimizedFilesSavingsRate : 0
OptimizedFilesSize : 0
SavedSpace : 0
SavingsRate : 0
UnoptimizedSize : 2867461324800
UsedSpace : 2867461324800
Volume : D:
VolumeId : \?\Volume{73180747-4bf5-4292-86fd-8e8fc4d076c4}\
PSComputerName :
CimClass : ROOT/Microsoft/Windows/Deduplication:MSFT_DedupVolumeStatus
CimInstanceProperties : {Capacity, FreeSpace, InPolicyFilesCount, InPolicyFilesSize...}
CimSystemProperties : Microsoft.Management.Infrastructure.CimSystemProperties
e a configuração tem praticamente as configurações padrão:
PS C:\> get-dedupvolume | select-object -Property *
ObjectId : \?\Volume{a3f85da5-283e-4ed4-81c0-2c0fd163b1c3}\
UsageType : Default
Capacity : 2198752718848
ChunkRedundancyThreshold : 100
DataAccessEnabled : True
Enabled : True
ExcludeFileType :
ExcludeFileTypeDefault : {edb, jrs}
ExcludeFolder :
FreeSpace : 130142007296
MinimumFileAgeDays : 0
MinimumFileSize : 32768
NoCompress : False
NoCompressionFileType : {asf, mov, wma, wmv...}
OptimizeInUseFiles : False
OptimizePartialFiles : False
SavedSpace : 0
SavingsRate : 0
UnoptimizedSize : 2068610711552
UsedSpace : 2068610711552
Verify : False
Volume : E:
VolumeId : \?\Volume{a3f85da5-283e-4ed4-81c0-2c0fd163b1c3}\
PSComputerName :
CimClass : ROOT/Microsoft/Windows/Deduplication:MSFT_DedupVolume
CimInstanceProperties : {Capacity, ChunkRedundancyThreshold, DataAccessEnabled, Enabled...}
CimSystemProperties : Microsoft.Management.Infrastructure.CimSystemProperties
ObjectId : \?\Volume{73180747-4bf5-4292-86fd-8e8fc4d076c4}\
UsageType : Default
Capacity : 4397913337856
ChunkRedundancyThreshold : 100
DataAccessEnabled : True
Enabled : True
ExcludeFileType :
ExcludeFileTypeDefault : {edb, jrs}
ExcludeFolder :
FreeSpace : 1530452013056
MinimumFileAgeDays : 0
MinimumFileSize : 32768
NoCompress : False
NoCompressionFileType : {asf, mov, wma, wmv...}
OptimizeInUseFiles : False
OptimizePartialFiles : False
SavedSpace : 0
SavingsRate : 0
UnoptimizedSize : 2867461324800
UsedSpace : 2867461324800
Verify : False
Volume : D:
VolumeId : \?\Volume{73180747-4bf5-4292-86fd-8e8fc4d076c4}\
PSComputerName :
CimClass : ROOT/Microsoft/Windows/Deduplication:MSFT_DedupVolume
CimInstanceProperties : {Capacity, ChunkRedundancyThreshold, DataAccessEnabled, Enabled...}
CimSystemProperties : Microsoft.Management.Infrastructure.CimSystemProperties
Eu já tentei separar os respectivos discos da função Serviço de Cluster (ou seja, apenas tornei-os discos autônomos com volumes "simples" e sistemas de arquivos NTFS) desabilitando e reativando a desduplicação e executando execuções de otimização sem nenhuma alteração significativa na resultado geral.
Então, por que ele está quebrado e como conserto?