Max size of NFS/CIFS

Question

What is the max size that a NFS or CIFS share can be? I have read that there is no limit and that these mount sizes can be grown the max capacity of the storage on the back end but I need confirmation.

Thanks,

Mike

nandas · Accepted Answer

Hi Mike,The max size is depended on the File system size - the NFS Export or CIFS share is created on a file system and thus technically share does not have a size.Coming to File system size - the max FS size depends on the Celerra Model and NAS code that you are running - for most of the cases the limit is 16 TB.For NS20/40/80, NSX, NS4, NS120/480/960, NS-G8 the limit is 16 TB.NS500 - 8 TB (5.5 or 5.6 code)NS350 - 10 TB (5.5 or 5.6)NS600 - 8 TBNS700 - 16 TB (5.5 or 5.6)However, please note that any such large file system will have more overheads, longer file system check time, more backup/recovery time etc.Hope this helps,regards,Sandip

qq11 · Answer

Hi,does it mean that in case of panic/fail over it will take longer for the system to be available when using larger file system?10x,

dynamox · Answer

it depends, even though it's journal file system, if datamover happens to panic it will need to run fsck. You might have a 50G file system but if it contains millions of tiny little files it will take some time to run.

mpalumbo1 · Answer

I have another question relating to this; is there a Max File size? One of my Vmware guys is worried if there is a file size limit. So his question is since the max size of a NFS mount is 16 tb can he fill that TB mount with 1 file? Not that he would do this but he just wants to know if there are any file size restrictions for mount points.

Thanks,

Mike

BillStein-Dell · Answer

The max file size is 16 TB, unless you have the filesize policy turned on in quotas, in which case the max file size is 4 TB. These are hard limits; the system will not allow you to make a file larger than these. Currently, though, the max file size matches the max filesystem size, so you can fill your entire filesystem with one file.

Rainer_EMC · Answer

actually a file filling a 16TB file system would be a tad smaller than 16TB since the system needs space for fs metadata should be 1-2 %

BillStein-Dell · Answer

oh, fine, splitting hairs again. He gets the general idea.

Celerra

Max size of NFS/CIFS

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