TL;DR - what do I need to do to maximise throughput between two DS1815+s, currently both connected to a shared gigabit switch each using only one of their four LAN ports?
This optimisation is a precursor to the migration of my systems from ext4 to Btrfs as encouraged in your channel
Hi,
I have just discovered your channel, subscribed, and become a member. Great content, which unfortunately has quickly exposed my woefully sub-optimal Synology configurations - e.g. ext4 instead of Btrfs.
I have a home setup with 2 x fully populated DS1815+s with about 35TB of data and 21TB free. The data is a mixture of family system images (Acronis) and data, and a significant amount of media that is served up locally by Plex.
DSM is 7.1.1-42962 Update 6 on both systems
A single volume exists on both, using the ext4 file system.
I use Synology Drive ShareSync to mirror the ‘primary’ NAS, configured as a ShareSync client, to the ‘secondary’ configured as a ShareSync Server. The NASs are on a gigabit switch network, sharing the same switch but with only a single LAN connection from each to the switch. Version control is not (I think) of much benefit in my use case so I have Sync Mode configured with no version control, Upload Only, and don’t keep locally deleted files on the remote server.
All user file I/O takes place on the ‘primary’ NAS leaving the secondary as a real-time backup.
So, my first skim through your channel content brings me to -
- I need a UPS
- I need to be using the Btrfs file system
- I need to optimise the transfer speed between my primary and secondary NASs - primarily to minimise transfer times during the reconfiguration process.
My game plan is -
- Protect the NASs with a UPS.
- Maximise the transfer speed between the two NASs through network and software configuration changes as necessary.
- Wipe the secondary NAS and reinstall DSM, specifying Btrfs.
- ShareSync the data on the primary back to the new Btrfs secondary (which will become the primary).
- Point all my clients to the newly created Btrfs file system on the secondary.
- Reinstall DSM on the primary (now secondary) and ShareSync all the data back to it.
Once that is done I can look for other wins by diving deeper into your channel content.
So finally to my questions
- Does the above game plan seem sensible?
- How can I maximise the transfer rate between the two NASs before the necessary data transfers - accepting that I am happy to make some investment in network hardware as necessary?
Any advice would be greatly appreciated.
Neil