ECS：無法將片段從 Centera 遷移至 ECS - ERROR_RETENTION_INCORRECT

片段無法從顯示「ERROR_RETENTION_INCORRECT」的 Centera 遷移至 ECS。

範例堆疊追蹤：

169.254.1.8 2019-11-21T19:30:53,212 [1215100270,sdk,ECSSYNCKDC01/3594002/WRITE_CLIP,-531c636:16e89995c11:-7a82,1] ERROR  AbstractTransaction.java (line 136) Failed to execute the transaction, aborting.
TransactionFailureException: com.emc.vipr.cashead.api.ObjectRetentionIncorrect: Failed to execute operation, error is ERROR_RETENTION_INCORRECT, object name is null
        at com.emc.vipr.cashead.storageserver.access.transaction.write.ObjectWriterImpl.finish(ObjectWriterImpl.java:80)
        at com.emc.vipr.cashead.storageserver.access.transaction.write.AwaitEOF.finish(AwaitEOF.java:173)
        at com.emc.vipr.cashead.storageserver.access.transaction.write.AwaitEOF.put(AwaitEOF.java:111)
        at com.emc.vipr.cashead.storageserver.access.msg.RichLastSegmentMessage.execute(RichLastSegmentMessage.java:61)
        at com.emc.vipr.cashead.storageserver.access.encoding.hpp.HPPResponder$EnqueableTransactionObject.execute(HPPResponder.java:311)
        at com.emc.vipr.cashead.storageserver.access.transaction.AccessTransaction.executeMessage(AccessTransaction.java:57)
        at com.emc.vipr.cashead.storageserver.access.transaction.AbstractTransaction.schedule(AbstractTransaction.java:131)
        at com.emc.vipr.cashead.storageserver.access.transaction.NullScheduler.registerSchedulable(NullScheduler.java:48)
        at com.emc.vipr.cashead.storageserver.access.transaction.AbstractTransaction.putGeneralMessage(AbstractTransaction.java:92)
        at com.emc.vipr.cashead.storageserver.access.transaction.AccessTransaction.put(AccessTransaction.java:61)
        at com.emc.vipr.cashead.storageserver.access.encoding.hpp.HPPResponder.processTransactionObject(HPPResponder.java:276)
        at com.emc.vipr.cashead.storageserver.access.encoding.hpp.HPPResponder.processPacket(HPPResponder.java:290)
        at com.emc.vipr.cashead.storageserver.access.encoding.hpp.HPPResponder.process(HPPResponder.java:181)
        at com.emc.vipr.cashead.storageserver.access.AccessNetworkServer.HandleConnection(AccessNetworkServer.java:51)
        at com.emc.vipr.cashead.hppserver.HPPServer.HandleConnection(HPPServer.java:84)
        at com.emc.vipr.cashead.net.NetworkServerWorker.Work(NetworkServerWorker.java:61)
        at com.emc.vipr.cashead.worker.Worker.call(Worker.java:227)
        at com.emc.vipr.cashead.worker.WorkerSchedulerThread.run(WorkerSchedulerThread.java:137)
Caused by: java.io.IOException: com.emc.vipr.cashead.api.ObjectRetentionIncorrect: Failed to execute operation, error is ERROR_RETENTION_INCORRECT, object name is null
        at com.emc.vipr.cashead.impl.vipr.ViPRObjectWriteHandler.checkResult(ViPRObjectWriteHandler.java:73)
        at com.emc.vipr.cashead.storageserver.access.transaction.write.ObjectWriterImpl.finish(ObjectWriterImpl.java:77)
        ... 17 more
Caused by: com.emc.vipr.cashead.api.ObjectRetentionIncorrect: Failed to execute operation, error is ERROR_RETENTION_INCORRECT, object name is null
        at com.emc.vipr.cashead.impl.vipr.ExceptionTranslator.translateError(ExceptionTranslator.java:38)
        at com.emc.vipr.cashead.impl.vipr.ExceptionTranslator.checkError(ExceptionTranslator.java:21)
        at com.emc.vipr.cashead.impl.vipr.ViPRObjectWriteHandler.checkResult(ViPRObjectWriteHandler.java:71)
        ... 18 more

場景 1：
如果物件的保留期超出存儲桶上指定的邊界，則嘗試寫入該物件將失敗。

使用保留策略時，為“最小固定保留期”選擇“無限”意味著所有物件上的所有保留值都必須是無限的。
為最大固定保留期選擇無限意味著沒有最大限制。

最小/最大保留約束會套用到寫入貯體的任何 C 型剪輯。如果剪輯由任何基於 SDK 的第三方工具遷移，則保留應在範圍內，否則會引發錯誤。

案例 2：
Centera 上已定義保留類別原則。您可以要求客戶提供來自 Centera 的以下命令，以確認這一點：

Config# show retention all

場景 1：
例如，如果您的 CAS 剪輯設置了保留期為 7 年，則必須創建具有以下保留值的存儲桶：

Bucket Retention Period: 0 seconds
Minimum Fixed Retention Period: 0 seconds
Maximum Fixed Retention Period: 8 years
Minimum Variable Retention Period: 0 seconds
Maximum Variable Retention Period: 0 seconds

這樣，保留在最小/最大約束範圍內。

場景 2：
要求客戶提供以下保留類策略。

1. 啟動 Centera 的 CLI。

2. 以具有合規性或監視器角色的使用者身份進行連接。

3. 輸入命令： show retention all

   輸出類似於：

   Retention class name Period
   ------------------------------------------
   class 1       5 years
   class 2         3 months
   class 3         10 years

然後，您必須將所有這些保留類策略添加到 ECS 端的命名空間保留策略。在 ECS 端新增命名空間保留原則後，請客戶/PS 再次嘗試遷移。