I did some fairly extensive tests on our internal network after purchasing the Synology, and at the time, SMB was half the speed of AFP. I tried turning off packet signing, changing a few other settings that should have helped, but couldn’t get anything near gigabit so I’ve left it on AFP.
Other info – Synology DS1010+ with expansion chassis DX510 – each box is a volume (1 normal share, 1 iSCSI block-level volume) – SNS globalSAN initiator on 2 workstations – ethernet ports bonded – RAID5 – jumbo frames enabled
Due to age, this combo will be retired this year. Synology doesn’t support it anymore and the last DSM version available doesn’t support macOS auto-saving, which causes hard crashes when trying to open and edit files remotely. The SMB implementation also seems to conflict with current versions of the macOS implementation. File copy is still okay, but it really needs to go.
Doug Metz
Anode