The configuration is a Windows 2012 server running two 2012 servers as VMs. Dell server with PERC 170 controller and 4 disks in One VM seems fine, but the other is throwing a lot of ntfs errors, not all the time, but ongoing bursts of "delayed write failure" and "failed to flush data to the transaction log".
Each VM uses a single VHD file, not compressed, the drive it is on is not fragmented. When I look at the disk manager in the VM, there are two drives shown
TThis problem seems to have occurred recently, the system has been running happily since installation last August. The vhd is about 32GB in size, and the VM provides RDS for remote users.
I did notice that write caching is enabled on the virtual hard settings, but I think this is the default.
Any ideas or suggestions welcome!
Hugh