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Forum Discussion
RN102 broken after OS 6.10.4 update
My RN102 appears to be broken after updated to 6.10.4. Not sure which came first, I updated the OS to 6.10.4 and noticed very slow transfer speed when I copied hundreds of JPEG images from the SD car...
StephenB wrote:
dstsui wrote:I ran NASTester all Shares. The Share with BitRot protection enabled measured 25MB/s. The remaining Shares with BitRot protection disabled measured 36MB/s on average. Is this speed normal at all?
There were some improvements made to the BTRFS setup some years ago. But to take advantage of them you'd need to do a factory reset, rebuild the NAS, and restore all the data from backup. I tested that some time ago, and it did make a significant difference on my RN102.
When was BTRFS introduced? I had the RN102 for 6 years and I should have checked the speed when I first installed it and defintely would not have accepted it if the speed was so slow back then, which is not a lot better than my old ReadyNAS Duo. BTRFS is unlikely to be the real issue, we are talking about 60% reduction in speed so something fundamental must be wrong.
What does your initrd.log look like in the logs zip? That will show the firmware update history since the last factory reset of your system.
BTRFS has always been used as the filesystem for the data volume for OS6 and the filesystem for the root volume on the x86 NAS units (the 102 uses EXT4 for the root volume).
Bit-rot protection was added back in 6.2.x
If you ever used bit-rot protection or snapshots, disabling bit-rot protection isn't going to undo all the CoW that has happened. It will just limit what happens going forward.
There are things you could check like CPU usage, whether the memory is using a lot of swap etc. Also turn off services and apps that you don't need.
Over time as updates are released software may consume more resources and the RN100 series is the least powerful systems that run OS6 so any performance hit is going to be most noticeable on those systems.
If you have a bad disk that can impact performance. If you only have the one disk that can also impact performance, and if your NAS is doing a resync of the RAID whilst adding a replacement disk performance will be reduced until that resync completes.
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