Development is planning on having the owner of the external package create and maintain the hashes instead of the hashing being done each time an update configuration is requested. Hashing will only occur when the actual image changes - which is quite rare. This is a significant change and will take considerable time to address
Workarounds/Suggestions:
1. Set a high 'update configuration value' for the package server(s). E.g 30 minutes or greater. The higher the configuration value, the less likely that a task like 'Copy file' will occur when hashing (checking package) is taking place.
2. Install the SBS Service on a site server that DOES NOT also act as a Package Server. The reason for this is each time a PXE Preboot is created/recreated an update configuration is triggered and hashing begins. With the SBS Service on a separate site server, the update configuration will not occur on the Package Server and the packages needed by the PXE Preboot creation/recreation process can be immediately delivered to the site server acting as an SBS Server.
3. Import images created on Package Server to the NS using the Resource Import tool and remove the package from the Package Server. The NS is now the source of the package and the image will replicate to the package server. No hashing will occur on the image on the Package Server. This isn't a practical solution for customers that create images at a remote site
4. Create package servers that only store Ghost images. This will cut down on the occurrence of the issue.