November 9, 2015 at 12:40 pm
Hi Guys
Whats the best way to stop/pause sql services on a cluster for maintenance.
failover should not happen.
Thanks
November 9, 2015 at 2:27 pm
Use SQL Configuration Manager is the only way to go.
November 10, 2015 at 1:35 am
What if the node needs a reboot during the maintenance? Do you want a loss of service?
Generally my stance on maintenance at the OS layer for SQL Clusters is
a. physical boxes, use Acronis to take a OS backup for rollback just in case it goes wrong
b. virtual boxes, create a snapshot of the VM before doing anything for rollback just in case it goes wrong
then
pause the passive node, do what I need to do, resume the host, failover test the hell out of what I've just done, if everything ok, pause the now passive node, do maintenance, resume the host, failover, test the hell out of what I've just done.
November 10, 2015 at 1:40 am
anthony.green (11/10/2015)
What if the node needs a reboot during the maintenance? Do you want a loss of service?Generally my stance on maintenance at the OS layer for SQL Clusters is
a. physical boxes, use Acronis to take a OS backup for rollback just in case it goes wrong
b. virtual boxes, create a snapshot of the VM before doing anything for rollback just in case it goes wrong
then
pause the passive node, do what I need to do, resume the host, failover test the hell out of what I've just done, if everything ok, pause the now passive node, do maintenance, resume the host, failover, test the hell out of what I've just done.
or
If its a mirrored OS, power down, remove a disk. Power up, perform upgrade/maint. If it goes sideways, power down swap disks and power on, OS will be in original state, place in disk and let rebuild occur
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November 10, 2015 at 4:41 pm
alnoor (11/9/2015)
Hi GuysWhats the best way to stop/pause sql services on a cluster for maintenance.
failover should not happen.
Thanks
Stop the clustered SQL Server resource using powershell
stop-clusterresource "sql resourcename"
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