Hello, I have recently set up gluster-3.1.2 as NFS Virtual Disk Storage for XenServer. I have ran a windows vm on it and tested the disk performance: Read: 100MB/s Write: 10MB/s While with standard NFS, on the same servers, we can achieve: Read: 115MB/s Write: 100MB/s We have two servers with local scsi disks with gluster configured in replicate mode. Volume Options: performance.cache-size 1GB write-behind-window-size 512MB performance.stat-prefech 1 Is there any specific option for this configuration? And, is it normal such a poor write performance? Thank you Stefano Baronio