In Oracle Linux, it is found that using command
/opt/qorestor/bin/system --show
It is found that VTL Daemon and FC Server do not startup
System Name : localhost
Current Time : Tue Apr 30 10:49:01 2019 +08
System ID : B59AB38E44FF1144961900D8F3429039
Product Name : QORESTOR
Version : 5.1.0
Build : 377
Repository location : /home/ocaroot
Metadata location : /home/qs_metadata
Dictionary type : Cloud-Optimized
System State : Operational Mode
Reason : Filesystem is fully operational for I/O.
Configuration Server : RUNNING Apr 30 10:44:15
Filesystem Server : RUNNING Apr 30 10:44:16
Windows Access Server : RUNNING Apr 30 10:44:15
Windows Active Directory Client : RUNNING Apr 30 10:32:24
Health Monitor : RUNNING Apr 30 10:31:23
Filesystem Checker : STOPPED
SecureConnect Server : RUNNING Apr 30 10:44:14
NDMP Daemon : STOPPED
VTL Daemon : STOPPED
ISCSI Server : STOPPED
QoreStor UI : RUNNING Apr 30 10:44:16
Checking /var/log/oca/ocafsd.log shows that
2019-05-01 14:32:06 ocafsd[35500]: [35794] ERROR: Failed to apply replication throttling limits. (c000000000000001)
2019-05-01 14:32:16 ocafsd[35500]: [35794] ERROR: Failed to delete throttling rules for device lo. rc = 127 (c000000000000001)
2019-05-01 14:32:16 ocafsd[35500]: [35794] ERROR: Failed to apply replication throttling limits. (c000000000000001)
2019-05-01 14:32:26 ocafsd[35500]: [35794] ERROR: Failed to delete throttling rules for device lo. rc = 127 (c000000000000001)
2019-05-01 14:32:26 ocafsd[35500]: [35794] ERROR: Failed to apply replication throttling limits. (c000000000000001)
2019-05-01 14:32:36 ocafsd[35500]: [35794] ERROR: Failed to delete throttling rules for device lo. rc = 127 (c000000000000001)