VISULOX disk space protection

Overview

During operation the disk space is growing and if there is no platform monitoring configured, this will end in uncontrolled situations.

The VISULOX disk space protection detects low disk space and a warning will be displayed. Once a critical value is reached, the service will be shutdown.

An entry is written into the log. Integrity-Check is also checking the disk quotas, independent of enabled or disabled disk space protection.

Usage

The default configuration is:

CODE

    --------------------------------------------
    | changed | key                   | value  |
    --------------------------------------------
    |         | diskprotect.base      | 2.0GB  |
    |         | diskprotect.data      | 20.0GB |
    |         | diskprotect.filestore | 50.0GB |
    | changed | diskprotect.shutdown  | false  |
    |         | diskprotect.threshold | 50     |
    |         | diskprotect.var       | 5.0GB  |
    --------------------------------------------

Disk space protection is on (diskprotect.shutdown=1). For the base path of VISULOX a minimum of 2Gbyte is needed, for var 5Gbyte and for the data 20Gbyte.

The threshold represents a value in percent. If the requested disk space is less than this perentage, the disk protection service will shutdown VISULOX (diskprotect.shutdown=1).

Data needs at least 20Gbyte. If this space is not available, a warning is displayed in the VISULOX Cockpit. If space for the data is at 10Gbyte (50% of 20Gbyte), the service will be shutdown.

Base : /opt/visulox
Data: /opt/visulox/data
Filestore: /opt/visulox/data/filestore/... (each single slot / disk)
Var: /opt/visulox/var

Configuration

Disabling the disk protection

CODE

 visulox config edit -name diskprotect.shutdown=0

Data must have at least 100Gbyte free

CODE

visulox config edit -name diskprotect.data=100Gbyte

Changing these parameters will take effect immediately.

The Disk Protection parameters are global parameters and will be set for all nodes in the cluster.

If one node is shutdown, because of low disk space, no more sessions will be distributed to this node.