For a while that I was noticing that my client virtual machine that is running on VBOX Linux was crashing every Sunday.
I took me 3 weeks to figure out what seems to be the origin of the problem:
the script/usr/sbin/raid-check is the only cron job that only runs on Sunday and I believe that it is the Culprit.
The host system is a CentOS Linux release 7.4.1708 (Core) running on a RAID 1 of two 6Tb HDDs.
Examples of VBOX messages that I believe are related to the situation (There are plenty):
Because of the log timestamp style I cannot be 100% that this entries happened at the same time, but I believe soo...164:57:20.936731 LsiLogic#0: Guest issued CDB {0x12, 0x0, 0x0, 0x0, 0x24, 0x0}
164:57:59.994807 AsyncCompletion: Task 0x007f99f55d4800 completed after 25 seconds
164:57:59.994834 AsyncCompletion: Task 0x007f99f55e4ec0 completed after 25 seconds
165:10:55.990517 VD#0: Write request was active for 38 seconds
165:10:55.990525 VD#0: Write request was active for 38 seconds
How can I prevent this problem.
Cheers.