Changes to Amazon cloud storage server object sizes
Starting with NetBackup 8.1, the object size for Amazon (S3) and Amazon GovCloud storage servers has changed. This change affects the valid range for the read and write buffer size for these cloud storage servers.
You must update the read and write buffer size values for pre-NetBackup 8.1 servers using the NetBackup Administration Console on the master server. Update these settings for each cloud storage server that is associated with a media server.
For the valid range, see the READ_BUFFER_SIZE and WRITE_BUFFER_SIZE information in the NetBackup Cloud Administrator's Guide. For procedures on how to update the read or write buffer size, see the NetBackup Upgrade Guide.