Smb speed

I have several NAS with OMV (3 of them from QNAP).

I have the same or more speed with OMV compared to vanilla QNAP.

I also have a similar problem.

I can write to nas at 700 Mbps, but can't read from nas at no more than 300 Mbps.

I didn't have such an issue previously, but can't figure exactly when this started.

Any suggestions?

Thank you

The transfer speed in the network depends on the size of the files. A large file is the fastest, I reach 100 MByte/sec with my Raspi.

Many, many small files slow down the speed radically, sometimes you can only talk about kilobytes/sec.

Therefore, you can only make serious comparisons with the same files.

Also take into account smb encryption which adds some overhead, besides smb isn't the most performant protocol anyway.

If you need performance in first place, you might want to consider to chose an other protocol for these file transfers.

Zitat von B3rnd

The transfer speed in the network depends on the size of the files. A large file is the fastest, I reach 100 MByte/sec with my Raspi.

Many, many small files slow down the speed radically, sometimes you can only talk about kilobytes/sec.

Therefore, you can only make serious comparisons with the same files.

The degraded performance with small files only to a small part comes from the network overhead. The bigger part of it comes from the OS/FS itself.

If someone has to transfer a huge amount of small files and performance is key, most often you're better of creating a big archive, transfer is and decompress it again. The performance gain does not come from compression in first place but just from the the fact the OS only has to handle one file to be transfered.