Network and Storage Protocols

vol options for CIFS volume

m_lubinski
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Hi,

In best practices for vSphere Netapp recommends to set vol options 'volume' no_atime_update               on for all volumes - but does this setting also apply for volume that keeps CIFS shares (directly from filer)?

As far as I am concerned this option should be set on NFS volumes which hold vmdk's etc, but it does not say anything about CIFS.

Right now I am struggling with very poor filer performance on CIFS, and I am wondering what consequences would this command have for currently running CIFS which shows (with sysstat -x 2 command) avg 3000-4500 IO/s ? Will it help anyhow? Filer is doing over 90% of CPU currently so any help with performance will be great till we switch to new boxes. The most important thing for me is: does this command cause any "time problems" to connected cifs clients or files itself?

would for instance in that case enabling options minra on that volume (around 2TB) help to gain some better results?

thank you in advance for any replies

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