So, from what I can tell based on my observations the total amount of RAM that is consumed appears to be based on how many drives in the system + number of CSV’s. (As you can see 78186 MB Max memory and 32 Cores) with 8 x CSV’s Here is what a 4-node S2D Cluster all nodes with 16 x 2TB NVME (Journal) and 96 10TB HDD Drives looks like: (As you can see 31416 MB Max memory and 24 Cores) with 4 x CSV’s Here is what a 4-node S2D Cluster all nodes with 17 x 2TB NVME SSD Drives looks like: (As you can see a 3009 MB Max memory and 4 Cores) with 2 x CSV’s Here is what a 2-node S2D Cluster both nodes with 2 x 2TB NVME SSD Drives looks like: This log shows the maximum amount of RAM, that was used during the deduplication job. Specifically, you want to watch for EVENT ID 10240. Microsoft-Windows-Deduplication/ScrubbingĪs jobs are running, you can check historical statistics about them. Microsoft-Windows-Deduplication/Diagnostic $DedupDiagevents = Get-WinEvent -Ma圎vents 10 -LogName Microsoft-Windows-Deduplication/Scrubbing | Select-Object * $Dedupevents = Get-WinEvent -Ma圎vents 10 -LogName Microsoft-Windows-Deduplication/Diagnostic | Select-Object * $DedupVolumeStats = Get-dedupvolume D: | Select * $DedupStatus = Get-DedupStatus | Select-Object * These logs carry essential information especially with historical job statistics on Deduplication. The first thing that you need to understand is the Event Logs that capture information about Deduplication. Don’t get me wrong I love this feature and think that it is one of the best in Windows Server 2019 however, you must have an understanding of what it is that you are configuring. Nothing in life is free, and this is certainly the case for Deduplication. Today, I want to talk to you about the performance penalty that is required to run Deduplication on Windows Server 2019. In the previous post, we talked about the essential operator’s report for Storage Spaces Direct in Windows Server 2019.
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