Surprisingly, the copy on write strategy of BTRFS is a good match. Some filesystems are better than others in this situation.
Loading up such a drive with 4TB of data all at once may take ten to a hundred times longer than expected. The envisioned use of a DM-SMR drive is for writing only few gigabytes at a time separated by hours of inactivity over which the drive transfers the data from the fast area to the SMR area. This is a way of squeezing more storage into a smaller space with super-slow write speeds when used for large data transfers. I think it is quite likely that your 2.5" HD uses drive-managed shingled magnetic recording. But I think it is not normal because with the windows 10 it goes up to 100MB/s. if this is normal? So I can stop looking for a solution. Hard drive has been formatted in EXT4 and NTFS.ĮXT4 All combination sharing files between desktop-RPi and vice versa // Laptop-RPi and vice versa always no more than 10MB/s transfer speed.īut, if I transfer NTFS connecting the HD directly to my desktop (Windows 10) on the USB 3.0 it goes to 100 MB/s! And connecting HD to the laptop (with normal USB) it goes to 30 MB/s.Ĭlearly something is happening with the Raspberry Pi system. Desktop with Windows 10 (connected by Ethernet to Internet) External 2.5 HD WD Elements 4TB connected to RPi by USB 3.0 A Raspberry PI 4 2GB RAM connected through Ethernet cable CAT6 I am going to try to make it understandable so hopefully somebody can help.
Everything works great, I can access my shared folders in different OS and everything is wonderful. My project is to create a NAS server using OpenMediaVault. I have a new Raspberry Pi 4 with 2GB of RAM. First, I would like to say thank you because with this forum and the OMV forum I have discovered a new world of possibilities.
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