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Readynas OS 6 Massive Performance Decrease
Hi,
I just updated my Readynas Ultra 4 to OS 6, and am now experiencing a huge performance difference.
Previously, I could read at around 110MB/s constantly over a gigabit connection. Now, I barely make 40, and even then speeds are very inconsistent. I have tried different configurations such as Teaming (multiple methods), changing MTU and the likes.
Operations can sometimes start fast and then get exponentially slower (sometimes even stop completely) then start back up again at reduced speeds.
Both SMB and NFS show similar bad speeds.
Write speeds suffer similarly, being both slow and inconsistent.
I am wondering if this has anything to do with BTRFS, or if there is anything I can do to fix this issue.
I am using WD Green drivesx3, running RAID-5 (XRAID2) on a fresh install of 6.0.4.
I know Ultra 4 on OS 6 isn't supported, just wondering if such a performance drop is expected.
I just updated my Readynas Ultra 4 to OS 6, and am now experiencing a huge performance difference.
Previously, I could read at around 110MB/s constantly over a gigabit connection. Now, I barely make 40, and even then speeds are very inconsistent. I have tried different configurations such as Teaming (multiple methods), changing MTU and the likes.
Operations can sometimes start fast and then get exponentially slower (sometimes even stop completely) then start back up again at reduced speeds.
Both SMB and NFS show similar bad speeds.
Write speeds suffer similarly, being both slow and inconsistent.
I am wondering if this has anything to do with BTRFS, or if there is anything I can do to fix this issue.
I am using WD Green drivesx3, running RAID-5 (XRAID2) on a fresh install of 6.0.4.
I know Ultra 4 on OS 6 isn't supported, just wondering if such a performance drop is expected.
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- Thank you for the tip. Yes.
Tried it with bitrot protection and without it and with deactivated checksum on the volume.
But there was no difference.
Maybe it is Linux and/or SAMBA issue.
But again if the system runs stable for now it will be probably ok. - Another possibility is that especially as 6.2 is a beta there could be some performance issues for certain use cases that might be resolved in a future beta.
Can you create a new share with the checksum, bit-rot and snapshots all disabled from the start and see if performance is any different? - Ok. So a new share with:
disabled checksum, bitrot protection and snapshots
the write speed with smb on a Linux client is: 25 - 49 MB/s
the read speed is: 55 MB/s
the write speed with afp on a Mac OS X client is 50 - 90 MB/s
the read speed 70 - 100 MB/s
It's a ReadyNAS Pro Pioneer 6x 3TB XRAID2 and Gbit LAN. - So it definitely sounds like it is related to SMB and the Linux client.
Have you tested e.g. NFS performance with Linux?
If you get the UID and GID of a user on your Linux PC to match that of one on the NAS you may find that using NFS provides much better performance for accessing the NAS from your Linux client. - Thanks for the tip.
No haven't tried NFS, but will do so in the future.
Another question: The ReadyNAS Pro Prioneer Edition runs with a 1.80 GHz, 800 MHz FSB C2D Intel CPU.
Is the Intel E6750 2.66 GHz, 1333 MHz FSB C2D compatible with this NAS?
http://ark.intel.com/de/products/30784/ ... 33-MHz-FSB - If you download your logs, what is the date in bios_ver.log ?
There is a long running thread on CPU upgrades which should have the information you need: http://www.readynas.com/forum/viewtopic.php?f=35&t=29284 - The bios is: bios_date=07/26/2010
Thanks for the link. - That is the latest BIOS for your unit. That thread has info on CPUs others have tried.
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