Hello John,

IIRC, the failover time can be up to 120 seconds which is why your connected systems need to have the correct disk and read timeout values set. For VMware ESX, you should install the vSphere Host utlities on the server which take care of the correct timeout values.

I’m not sure what you mean with „many nfs servers are connected via iscsi connections“, since this sounds a bit odd.

Bye,

Alexander Griesser

System-Administrator

ANEXIA Internetdienstleistungs GmbH

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Von: toasters-bounces@teaparty.net [mailto:toasters-bounces@teaparty.net] Im Auftrag von John Sfetsoris
Gesendet: Montag, 06. Februar 2012 11:21
An: toasters@teaparty.net
Cc: jalterweb@yahoo.gr
Betreff: Fas 3240 failover delay

Hello everybody

I have a Fas3204 HA in two seperate chassis , dataontap version 8.02P3 7mode. Many NFS servers are connected to it via iscsi connections. NFS servers are VMware mashines . VMware version is VSPERE 5. There are 4-5 Vfilers running. When i force a failover from the one controler to other, the NFS clients

have a delay about 30-40 seconds. Is this normal? Can i do something to investigate/tune the failover proccess?

thnks in advance

John