G A L A X Y N A S L X 5 C O N F I G U R A T I O N A N D S Y S T E M I N T E G R A T I O N G U I D E
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Section 3 Menu Functions
Please observe the following guidelines for deadtime value tuning:
set the keepalive time to 1000 ms, it should be lower than warntime,
set deadtime to 60 s,
set warntime to half the deadtime value you wish to use,
observe the messages in the error box (lower left-hand corner of the Web GUI) or your email, if you
have set up email notification for failover. If there are no relevant warnings,
your proposed
deadtime is fine and you can skip to the next step. Otherwise, set
warntime to the longest time
interval between the hearbeat packets as indicated in the
error box. If the errors persist,
increase warntime further. Please note deadtime always needs to be greater than warntime,
set deadtime to double the current warntime value,
set warntime to slightly less than deadtime.
Function: Failover Tasks fig 3.1.2d
This function displays all available tasks for iSCSI volumes. In order to select a task for a failover, move
the selected task to the
Failover Tasks
column. Please note any changes can only be made before the
failover is initialized in the
Failover manager
function. To remove a task during failover operation, go to
CONFIGURATION
Volume manager
Replication tasks
.
Note:
The function is available only on the primary node.
Note:
You can only move a task to the Failover tasks column when the secondary
node has an appropriate reverse task set up.
Function: Failover Manager fig 3.1.2e
This function allows you to stop, run or change the operation mode for the given server.
On the
primary
server the
Start/Stop
action buttons control both servers. On the
secondary
server,
they control the secondary server only.
Figure 3.1.2d
