Bandwidth throttling and backlogs in DFS Replication

A customer recently contacted us about a consistent backlog they were experiencing using DFS Replication. Even on fast links, changes to small files (a few KB) would take 4 to 5 hours to replicate. The customer described the environment as follows: “We have one hub site server and 25 branch site partners. We use one… Read more

DFS Replication MOM 2005 Management Pack available for download

The DFS Replication Service Management Pack for MOM monitors the DFS Replication service running on Windows Server 2003 R2 DFS Folder targets. This management pack monitors the events collected from the service that indicate the health of the service, replicated volumes, replication groups, and replicated folders. It also has consolidation rules that monitor frequent occurrences… Read more

TechNet Chat: An Introduction to Windows Server "Longhorn"

Please join Bill Laing, General Manager of the Windows Server Division, and Iain McDonald, Director of Central Program Management within the Windows Server Division, for a discussion about Windows Server “Longhorn” Beta 2. Windows Server “Longhorn” is the next generation server operating system from Microsoft that will help IT professionals maximize control over their infrastructure… Read more

Recovering from data corruption on volumes where replicated files are stored

A customer recently contacted us about how to recover from data corruption on a volume where replicated content was stored. He writes: “We have recently experienced data corruption on our hub server. This data was on a large volume, and I want to avoid a full restore. The data on the volume is collected from… Read more

TechNet Webcast: Configuring Failback and Target Priority for DFS Namespaces (Level 200)

Our very own Sanjoy Chatterjee will be hosting a webcast on new DFS Namespaces features in June. Details are below–hope you can join us! SummaryThis webcast introduces two new features of distributed file system (DFS) Namespaces: target priority and client failback. These features are available on servers running Microsoft Windows Server 2003 with Service Pack… Read more

How to set a static port for DFS Replication traffic

It’s easy: use the dfsrdiag staticRPC command. You can verify the static RPC port change by using the dfsrdiag dumpmachinecfg command. (Note: the default value of the StaticRPC parameter is 0. This indicates a dynamic port assignment.) Will this setting last across reboots? You bet. According to DFS Replication guru Rob Post, when you specify a… Read more

What should you store in your DFS root folder?

I see this question fairly often in the DFS_FRS newsgroup. A customer will be setting up a new namespace and wonders whether he needs to move a bunch of shares under the root folder. The answer is simple: don’t use the root folder for storage. Keep your shares elsewhere and create folders in the namespace (aka… Read more

Determining which member was set as the primary member for DFS Replication

When you configure DFS Replication, you select the primary member that has the most up-to-date files that you want replicated to other members. The primary member’s files will always win the conflict resolution that occurs when the receiving members have files that are older or newer compared to the same files on the primary member…. Read more

Troubleshooting problems with DFS Replication diagnostic report accessing performance counters

A blog reader recently reported that running a diagnostic report resulted in the following error: The DFS Replication service is unable to access the performance counter DFS Replicated Folders(Apps-{B0CFA463-027A-47BE-B1B8-8A84D5C758F2})File Installs Succeeded on SERVER1. Performance data is unavailable. Error ID: 0xc0000bb8. To troubleshoot this problem, our DFS Replication guru Rob Post asked the customer to check… Read more

Troubleshooting erroneous sharing violations in the DFS Replication health report

We recently received an email from a customer who was seeing sharing violations in the DFS Replication health report, even though the sharing violations were no longer being reported in the DFS Replication event log. He writes: “I recently converted a small DFS (with NTFRS) environment to DFSR.  At one point, the ‘primary’ server got… Read more