Home > Storage > PowerScale (Isilon) > Industry Solutions and Verticals > Media and Entertainment > PowerScale OneFS: macOS Client Performance and User Experience Optimization > Increase SMB credits in OneFS
The default SMB credit value in OneFS is 1024. This is fine for most use cases, but it has been shown that macOS systems expect a higher value. Increasing this value to 8192 greatly improves write performance on macOS systems. This comes at the expense of increased load on the OneFS cluster, so care should be taken when increasing this value on clusters that already have a high workload.