Configured UnRAID but experiencing sluggish data movement, seeking ways to improve performance in Windows.
Configured UnRAID but experiencing sluggish data movement, seeking ways to improve performance in Windows.
Hey everyone, I just configured an UnRAID array with 12 x 3TB drives (2x parity, 10x data) at 7200 RPM SAS in a Dell MD1000 shelf. It’s connected to an HP DL360e Gen8 server via gigabit home networking. When I first started transferring using TeraCopy, the speed was around 920MB per second for the first ~12GB, then it dropped to about 320MB. I understand Windows adds a lot of overhead on network transfers, but I’m wondering if this performance is realistic and how I can improve it. Any suggestions? Thanks!
Do you have a cache drive? Unraid parity tends to be slow by itself. I believe a read-modify-write approach can help improve it. Also, if you're looking for alternatives like RPBAoby, Proxmox, or another OS that uses a conventional RAID setup, those usually perform better since they leverage multiple disks simultaneously.
You can achieve similar functionality on other operating systems as well. The GUI differs somewhat, and tools like ZFS offer advanced features but require more command-line expertise.
I've switched to a different parity calculation method now. Performance is around 600Mb, though not fully recovered yet. Still, it's nearly twice as fast as before. Thanks!