Hey guys
I need again your help.
I'm using OMV to back-up some data from my clients (Win and Mac).
I'm currently running OMV on a HP MicroServer Gen 8 with the Intel 1610T CPU and 16GB of RAM.
I have a RAID 1 with 2 3TB WD Red drives which I'm using to store the data; I have tried to transfer the data to a single SSD drive (Samsung 850 Pro) but I see no differences in the transfers' speed. The drives are formatted as Ext4 and are mounted adding the noatime and nodiratime parameters.
The 2 NICs (both Gigabit) are teamed but i can reproduce the problem even if using a single NIC.
I'm experiencing very slow transfers from the Mac clients to OMV.
The other way around (OMV to MAC) is working just fine. Transfers to Windows clients are fine too.
Looking at the NICs stats, I see transfers easily up to 300Mbps when connected with a Windows client over WiFi and up to 900Mbps when using the cable (Cat 7 STP).
Anyway, with transfers from Mac OSX Maverick to OMV performances are really bad. It took around 4 hours to transfers 12 GB.
I have tried to set SMB version 2, restarted the service (and the Mac), no difference.
I have also tried to access the share via cifs://<omv-ip>/<share-name>; same issue.
This issue only affects the Mac clients when connecting over SMB/CIFS as far as I can see.
Just to rule out performance issues, I have attempted the same transfer while downloading via Sabnzbd (inboud, ~ 100 Mbps), streaming a 1080p movie (outbound, ~25Mbps) and have ascertained the CPU is running ~3-4%, RAM is ~2-4% and there is plenty of network bandwidth available. Even under this test, the transfer rate was around 4 hours for 12 GB, same as when the NAS was completely idle with all the plugins, extept samba, disabled.
I'm sharing the data over SMB/CIFS and have not installed AFP plugin (netatalk, if memory serves me).
How can I workaround the issue? Is there any other protocol I can use (NFS perhaps?) or it there anything else I can try?
Thank you for any tip you may give me.
Thanks,
Tommy