Disk Storage ZFS Storage Appliance (MOSC)

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NFS share size considerations

edited May 17, 2016 11:54AM in Disk Storage ZFS Storage Appliance (MOSC) 2 commentsAnswered

Hi Pundits,

I understand that ZS storage supports 128bit filesystem and there is no size limit in theory. However we always want to consider performance impact when it comes to large or extra large share sizes. I also understand this is such an open ended question and there is no right answer. However from the ZFS filesystem's architecture how does large share size (consider 40 to 50TB) effect performance, overall pool and other resources. The storage in question is ZS3-2. 

What are some of the important considerations when it comes to sizing in the ZFS filesystem? For VMware/OVM or other hypervisors there is obviously considerations regarding number of active VMs running on the share, the quota each can get to perform it's IO on the share and thus we would limit the size to say hosting x number of VMs per share, which in turn may define the share size. The number of VMs of course has to consider type of operations, block size, application, load etc. We also consider number of NFS clients active on the share and it's

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