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 Data ONTAP® PowerShell Toolkit
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Cmdlet: Invoke-NaClusterForceTakeover
NAME
Invoke-NaClusterForceTakeover
SYNOPSIS
Forces one filer to take over its partner even though the filer detects an e
rror that would otherwise prevent a takeover.
SYNTAX
Invoke-NaClusterForceTakeover [-Disaster] [-Controller <NaController>] [-Wha
tIf] [-Confirm] [<CommonParameters>]
DESCRIPTION
Forces one filer to take over its partner even though the filer detects an e
rror that would otherwise prevent a takeover. For example, normally, if a de
tached or faulty ServerNet cable between the filers causes the filers' NVRAM
contents to be unsynchronized, takeover is disabled. However, this will all
ow the filer to take over its partner despite the unsynchronized NVRAM conte
nts. cf-force-takeover is dangerous and can lead to data corruption; in almo
st all cases, use cf-takeover instead.
PARAMETERS
-Disaster
When specified, forces a filer to take over its partner in all cases whe
re Invoke-NaClusterTakeover would. In addition it will force a takeover
even if some partner mailbox disks are inaccessible. It can only be used
when remotesyncmirror is licensed. This option is very dangerous. Not
only can it cause data corruption, if not used carefully, it can also le
ad to a situation where both the filer and its partner are operational (
split brain). As such, it should only be used as a means of last resort
when the takeover and force-takeover operations are unsuccessful in achi
eving a takeover. The operator must ensure that the partner filer does n
ot become operational at any time while a filer is in a takeover mode in
itiated by the use of this operation. In conjunction with RAID mirroring
, it can allow recovery from a disaster when the two filers in the clust
er are located at two distant sites.
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
-Controller <NaController>
The Data ONTAP controller object, embodied by an NaController object. T
his parameter is returned by the Connect-NaController cmdlet. If not sp
ecified, the value in the global variable CurrentNaController is used.
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
-WhatIf
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
-Confirm
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
<CommonParameters>
This cmdlet supports the common parameters: Verbose, Debug,
ErrorAction, ErrorVariable, WarningAction, WarningVariable,
OutBuffer and OutVariable. For more information, type,
"get-help about_commonparameters".
INPUTS
OUTPUTS
DataONTAP.PowerShell.SDK.Cmdlets.Cf.ClusterStatus
NOTES
Category: cf
API: cf-force-takeover
RELATED LINKS
Invoke-NaClusterGiveback
Invoke-NaClusterTakeover
Get-NaCluster
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Data ONTAP® PowerShell Toolkit
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