L2 cache occasionally clears on its own
Posted: Tue Aug 22, 2017 10:38 pm
PrimoCache version: 2.7.3
Cache Settings:L1 64192 MB / L2 1907 GB / Gather Interval 1 / Block Size 64 KB Cache Strategy read-data & write-data / Defer-Write - 300 Sec
Windows OS: Win 8.1
Hardware Information (CPU/Motherboard/Memory/Harddisks): Intel i7-5820 / AsRock x99 / 128 GB / USB-3 external volumes being cached
Description:L2 cache occasionally clears on its own
In this latest occurrence, I had 7 USB-3 volumes being cached. The cache is 2 TB and approximately 1.5 TB of the cache was filled.
After an application error in a program that leverages the cache, the full L2 cache had been cleared.
I found nothing relevant in the event logs. In particular, no hardware errors were logged.
=== details ==
This is on Windows 8.1 PC fully patched with Microsoft patches.
I use a M.2 NVME SSD as a L2 cache with multiple USB-3 drives as the volumes being cached.
I upgraded to v2.7.3 on July 13, 2017 in hopes of eliminating an issue where the L2 cache would occasionally clear without user action. Typically over a weekend, or overnight.
Since then, I have not had an issue. I've done several test reboots, as well as normal operational activities and there have been no issues.
This afternoon, my L2 cache just cleared for no apparent reason. I did reboot the PC around 12:50 PM EDT (per the event logs), but I confirmed the cache was valid after the reboot.
After the reboot I ran a process that accessed roughly 500 GB of the L2 cache. I was observing the PrimoCache UI and happened to note how much data was accessed. Easy since the counter was reset to zero by the reboot.
At 4:54 PM, one of my main applications had an application error (per the event logs) and terminated abruptly.
I restarted the application and noted it was running slower than normal. I checked the PrimoCache UI, and it showed the L2 cache was effectively empty.
Cache Settings:L1 64192 MB / L2 1907 GB / Gather Interval 1 / Block Size 64 KB Cache Strategy read-data & write-data / Defer-Write - 300 Sec
Windows OS: Win 8.1
Hardware Information (CPU/Motherboard/Memory/Harddisks): Intel i7-5820 / AsRock x99 / 128 GB / USB-3 external volumes being cached
Description:L2 cache occasionally clears on its own
In this latest occurrence, I had 7 USB-3 volumes being cached. The cache is 2 TB and approximately 1.5 TB of the cache was filled.
After an application error in a program that leverages the cache, the full L2 cache had been cleared.
I found nothing relevant in the event logs. In particular, no hardware errors were logged.
=== details ==
This is on Windows 8.1 PC fully patched with Microsoft patches.
I use a M.2 NVME SSD as a L2 cache with multiple USB-3 drives as the volumes being cached.
I upgraded to v2.7.3 on July 13, 2017 in hopes of eliminating an issue where the L2 cache would occasionally clear without user action. Typically over a weekend, or overnight.
Since then, I have not had an issue. I've done several test reboots, as well as normal operational activities and there have been no issues.
This afternoon, my L2 cache just cleared for no apparent reason. I did reboot the PC around 12:50 PM EDT (per the event logs), but I confirmed the cache was valid after the reboot.
After the reboot I ran a process that accessed roughly 500 GB of the L2 cache. I was observing the PrimoCache UI and happened to note how much data was accessed. Easy since the counter was reset to zero by the reboot.
At 4:54 PM, one of my main applications had an application error (per the event logs) and terminated abruptly.
I restarted the application and noted it was running slower than normal. I checked the PrimoCache UI, and it showed the L2 cache was effectively empty.