Since upgrading to SoftRaid version 5.6.1, I've started noticing poor write speeds on my Thunderbolt RAID 5 array (4x4TB in a Thunderbay 4 enclosure) after rebooting my computer. It seems as though Write Caching is being disabled somehow.
Although the Write Cache is enabled in my SoftRaid preferences, disabling it and then re-enabling it appears to solve the problem. I go from write speeds of around 150MB/s to write speeds of ~400MB/s after the uncheck/re-check process.
System
iMac 17,1
MacOS Sierra 10.12.6 (16G29)
Ram: 48GB
Drive Configuration
4x 4TB Hitatchi Deskstar
Enclosure: OWC ThunderBay 4
RAID 5 (SoftRaid) Optimized for Digital Photography
Thanks for any insight!
Maybe you are running the incorrect version? Are you in expired trial mode?
Try this version of SoftRAID:
SoftRAID for ThunderBay: https://softraid.com/srtb
I'm running the full licensed version of SoftRaid, 5.6.1.
The write cache is checked as "enabled" but when I restart my computer, it clearly doesn't work. So I uncheck and re-check the box to activate the write cache.
I will try to run the Thunderbay version (I didn't know there was one).
Maybe you are running the incorrect version? Are you in expired trial mode?
Try this version of SoftRAID:
SoftRAID for ThunderBay: https://softraid.com/srtb
You are sure you are not in expired trial mode? Look in the SoftRAID Log for any messages about being in expired trial mode.
This problem persists even with SoftRaid 5.6.3
I have absolutely no idea what to do.
There is absolutely nothing in the SoftRaid Log mentioning expired trial mode. Basically, none of the preferences stick. I get prompted to enter my admin password every time.
Send a support file next time this happens. We may need to collect some additional information with terminal. This is controlled by a simple text (plist) file. It does not make sense yet.

