![]() Users should be careful to perform only the steps that are mentioned in the article while they are running the "SYSTEM" account. The "SYSTEM" account is a user account that has a much higher level of access than an administrator account. To decompress the deduplication metadata folder so that write actions to deduplicated files on this volume are no longer corrupted, follow these steps. Files that have already been corrupted must be restored from backups, if they are available. Unfortunately, we cannot restore data that is already corrupted on existing compressed volumes that have deduplication enabled. To resolve this problem, do not enable data deduplication on an NTFS volume that has volume-level compression enabled. However, deduplication on compressed folders is supported and functions as expected. The deduplication metadata that is stored on the compressed volume root is located under the System Volume Information (SVI) folder.ĭuplication is not supported on volumes that have compression enabled on the root when the volume is created. ![]() This problem occurs because deduplication metadata that is stored on the compressed volume root becomes corrupted when a process writes in-place to a file on the deduplicated volume. Additionally, the Data Deduplication scrubbing job may log an event in the event log to report corruption on the volume of files that it cannot repair. Users can no longer open files on a deduplication-enabled volume that was created by having NTFS compression enabled at the root of the volume. However once the Backup Exec is patched up with latest, then all the remote servers should be updated as well.This article provides a solution to an issue where files can't be opened and are logged as corrupted on deduplicated volumes.Īpplies to: Windows Server 2012 R2 Original KB number: 3066174 Symptoms Dedup storage services can be restarted as well. You can also install the latest patches on the Backup Exec and then update the remote agent on the affected remote server then reboot the server and try backup client side dedup backup, it should be successful. If reboot of the server is not possible then restart the backup exec services then try the backup job. You can add IP and host name of the remote server to backup server’s host file, restart the server and then try the backup job. You can edit the backup job and go to Network and select IPV4 and try the backup job. You also need to ensure that port 10000 is open on the remote server. You can go to backup and restore tab and locate the remote server which is failing client side dedup backup then right click on it and choose option Establish Trust. If added with host name then add the remote server with IP address or vise-versa. Now in order to fix the client side dedup backup, first check how the server is added to Backup Exec server (media server) like, with IP address, or host name or fully qualified domain name. It could be any server like windows, sql, oracle, exchange etc. Normally it fails or one specific server not all servers. If client side dedup backups fail then you need to check if it fails for one server or multiple remote servers. Note: sometimes client side dedup backup may fail due to some network related issue then manually change to server side dedup and run the backup job. By default Client side dedup is enabled for both Full and Incremental backup job. Now go to storage option and selection Dedup storage. It is advisable to run a complete full backup of any server to dedup storage first time for best dedup results. Now you can select the files and folders for backup selection by clicking Edit in left panel. Go to Backup and Storage tab > right click on a remote server > choose Backup > choose Backup to deduplication disk storage Let’s check below how to create Deduplication backup job. Please note that client side dedulication is available only on remote servers and not on Backup Exec server (media server). The Deduplication storage opotion provides media server side deduplication and remote server side deduplication to reduce network bandwith and optimize storage device. Backup Exec Deduplication option is a great feature to reduce storage data and eliminate duplicate data to be backed up.
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