During archiving, messages or attachments can sometimes be stored in the wrong partition when using an HCP device

Problem

Under certain conditions, during the archiving process, when items are being archived by Enterprise Vault (EV) to a Hitachi Content Platform (HCP) device, the archived message (the DVS file) and\or attachment(s) (the DVSSP file) can be stored in the wrong partition on the HCP device.
 

This situation can occur if all the following is true:

1. At least 2 Vaultstores have been configured with an active partition
2. Sharing has been configured across the Vault Store Group for the Vaultstores
3. The following field in the EnterpriseVaultDirectory database has been  manually updated and set to 1 (from the default value of 0): [VaultStoreGroup].[ArchiveSISPartVerificationLevel]

When files have been stored on the wrong partition, retrieval of the archived item will fail. Usually, the first indication that this issue has occurred would be an error being reported in the EV event log during the Indexing of the item when  the associated StorageCrawler process fails to retrieve the item from the partition.

Error Message

The following error can be seen immediately int he EV Event Log after archiving when the Indexing process is trying to retrieve the item for indexing

Type :        Error
Date :        24/04/2019
Time :        20:06:45
Event :        28998
Source :        Enterprise Vault 
Category :    Storage Crawler
User :        N/A
Computer :    EV Server 1
Description:
Retrieval of a saveset failed.

Reason: The system cannot find the file specified.  (0x80070002)
Saveset Id: 201912270000000~201610130444140000~Z~90D69679A1B3F81AB6A183BB759172A1
Vault Id: 15B1127117A6454419D2417C28B9C87A71110000EV1
Index Sequence Number: 15469
Internal Reference: Fetching Saveset for indexing

Cause

Setting the ArchiveSISPartVerificationLevel  field to 1 means that EV will validate the existence of a shared item before re-using it. If the shared item  verified is on a different partition, that partition is then wrongly used to store the new item.

Solution

1. For more information about Messages (DVS files) being stored in the wrong partition, which has been resolved in version 12.4.0, please refer to article 100045808
    
2. For attachments (DVVSP files) being stored to the wrong partition, please refer to article 100045809
    
3. In addition, EVSVR was extended to repair affected items using the repair option: ArchiveObject - Saveset in the following release: Enterprise Vault 12.4.0