07-01-2014 08:15 PM
Good information NWguy. I don't have the issues you talk about related to using an imaging program since I have a Server 2012 Essentials server backing up my PC.
But, I have been running my drive at 18gb. I just had a cache reset. I am going to trying setting it to 16gb aka 16,384KB to see if that works better.
I can't believe it's been 6 months and Sandisk hasn't released and update for ExpressCache. I think they are done supporting it. I guess the next PC I build I will have to pony up for a 512GB or 1TB ssd. Maybe in the next year or two those sizes will be affordable.
07-06-2014 03:30 PM - edited 07-06-2014 03:31 PM
Just got the message for a cache reset and thought I'd write down what it said:
"The cache has been reset. The Expresscache software does this as a precaution if the cache is found to be out of sync with the primary drive. This can be caused by an unexpected power loss, ungraceful forced system shut down, Windows update, or several other reasons. The cache will rebuild itself automatically."
Also, thought I'd join the bandwagon in saying "Yes the reset happens to me too." I've repartitioned the drive to 16 GBs and I still got this message.
What's worse is that I think that the Expresscache program is causing my sound card to randomly drop noise processes, making it sound like an old skipping record. 1.3.1 was great, and still is on another PC that's using it (-Never- updating that one! lol). Why can't we just get a link to the 1.3.1 software? I have an old 1.0.1 file, but it doesn't perform as great as post 1.2.1.
Anyways, thanks for all of the tests and communications going on here; I hope to see the issues resolved soon.
07-18-2014 09:12 PM - edited 07-18-2014 09:15 PM
Yea thanks for the commenads, I 've been watching my system just drag when the cache is full, watching perf monitor its like I don't have any cache/ssd running, its just single digit reads all day long.
I will try 23GB partition
Its a bit weird because express cache only shows the total cache size rather than the partition size...
Yea at this point I think they might have created a flawed product from the get go
Though its weird because ssd performance degredation should occur with writes, not reads when full...
Btw anyone know what FDMap1.dat files are in the express cache programdata directory? In my fustration I tried deleting them to more clean clear my cache and everything else possible. But it seems those files are protected and reappear instantly when the service is restarted
07-19-2014 04:23 PM
So annoyed, I'm pretty sure it got slow as it hit near the 23GB partition capacity, system lags, general feeling of system slower than even without a cache drive.
dropping to 18GB partition...
we aren't getting the product we paid for..
07-28-2014 05:12 AM - edited 07-28-2014 05:34 AM
Same issue here re cache resets.
Seems to be linked to two different things:
When running properly, it will display 768 MB RAM in use and 6121 Blocks in use by ReadyCache (see above) and when not, 0 MB in use and 0 Blocks in use in the case of a cache reset. Otherwise, memory in use will vary from 768 MB RAM and 6121 Blocks in use to as low as 512 MB RAM and 4096 Blocks in use depending on what type of scanning program has just run.
2.) I've seen a cache reset be triggered by manually running a Secunia PSI scanning session; 0 MB in use and 0 Blocks in use at the end of the scan. When this happens, the system will revert to normal prior unenhanced operation, with the usual old system data displayed in the Task Manager Performance window. It will take up to 60 minutes for these numbers to change back to the way they were before the crash when this occurs as ExpressCache recovers.
I"ve been monitoring ReadyCache performance for some time now using cmd as admin and using the eccmd -info command and capturing the resulting scan results. I've copy/pasted these scans into over 50+ different notepad files, each saved as UTF-8 format and pointedly have run this system over at least a two day period between reboots.
(These files are grouped by the name of the pc and # number total reboots the system has seen since the Sandisk ReadyCache SSD has been installed.)
There has to be a way to exclude a/v scanners, antimalware scanners, and other scanning programs (like a disk imaging program) from the ReadyCache installation as running these scans always negatively impact the proper operation of the Sandisk ReadyCache SSD, and can even cause it to crash temporarily. Home use is different from enterprise use; one of these differences is that business users do not scan their systems on a regular basis, if at all. IT staff will step in only if a user complains about a system issue when requested. As it seems as if ExpressCache software is still geared to enterprise usage and scenarios, Sandisk may want to look into how home usage of their product differs.
If this option were to be put in place in the next oem ExpressCache version, implementing this option should be a workaround that works on this system and others, as it should rarely run into the SSD maximum space and LBA limitations as it now seems to do.
I may even put this data into an Excel spreadsheet.
07-28-2014 02:01 PM
Thank you for the very thorough feedback. I will pass this along to the ExpressCache team. Would you be willing to share the notepad files and other logs that you have gathered? This may help the development team find a solution for this issue.