Advisability of sharing out the same filesystem via NFS and CIFS at the same time

Discussion created by Legacy BlueArc on Oct 20, 2011
Latest reply on Jul 1, 2014 by Joel Cooper
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Originally posted by: stevenj

Is this a good idea?

We have users on Window and Macs and users on Linux....all want to upload and download via CIFS or NFS, but the RHEL based HPC is NFS......so it would be best for them to have both protocols to the same space.

Also we use AD for Windows and are looking at LDAP/freeIPA for Linux, the HPC and maybe MACs, can Bluearc use multiple (at least the first two, but we also have a Mac LDAP!) centralised authentication mechanisims at the same time and on the same filespace?

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Legacy BlueArc Jun 7, 2013 7:45 PM

Originally posted by: rchace

I believe this is fairly commonly done. You should be able to do that with no problem.

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Legacy BlueArc Jun 7, 2013 7:45 PM

Originally posted by: benhutch

Multiple protocols on one file system is fine, this is one of our product differenciates (or used to be) you can also use CNS to further abstract a share from a file system.

If performance is your primary concern though you might want to go down seperate EVS file system routes, having CIFS means you need to enable mixed mode security and thus have shortname generation on by default, and are going to be doing more work in software on the node compared to NFSv3. Bear in mind that for optimum storage performance you shouldn't split a storage pool between Multiple EVS as this will lead to the SCSI command queue depth being split between nodes. Initial deployment choices can have a huge impact on how managemable your system is in the future. KISS is always a great moto where possible.

AD and LDAP are also fine since you are populating the Windows user mappings for CIFS and UNIX for NFS. I think you'd only get a third if you started populating from NIS for your RedHat boxes, but that's an edge situation I haven't run into before.

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Carlos Vargas

Jan 31, 2014 2:49 PM

If you want to centralized the permission management you can use Likewise for Linux and MAC so you can manage everyone from the Windows environment and authenticate to AD. Linux Active Directory Integration - Unix Ad Integration - Mac Ad Integration

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Joel Cooper Jul 1, 2014 12:51 PM

We have both cifs/nfs on the same volume all the time. In some areas its a real pain because of the mixed qtree permissions. We have mac users as well and separated them off to their own volume with nfs permissions only.

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Legacy BlueArc Jun 7, 2013 7:45 PM
Originally posted by: rchace

I believe this is fairly commonly done. You should be able to do that with no problem.
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Legacy BlueArc Jun 7, 2013 7:45 PM
Originally posted by: benhutch

Multiple protocols on one file system is fine, this is one of our product differenciates (or used to be) you can also use CNS to further abstract a share from a file system.

If performance is your primary concern though you might want to go down seperate EVS file system routes, having CIFS means you need to enable mixed mode security and thus have shortname generation on by default, and are going to be doing more work in software on the node compared to NFSv3. Bear in mind that for optimum storage performance you shouldn't split a storage pool between Multiple EVS as this will lead to the SCSI command queue depth being split between nodes. Initial deployment choices can have a huge impact on how managemable your system is in the future. KISS is always a great moto where possible.

AD and LDAP are also fine since you are populating the Windows user mappings for CIFS and UNIX for NFS. I think you'd only get a third if you started populating from NIS for your RedHat boxes, but that's an edge situation I haven't run into before.
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Carlos Vargas Jan 31, 2014 2:49 PM
If you want to centralized the permission management you can use Likewise for Linux and MAC so you can manage everyone from the Windows environment and authenticate to AD. Linux Active Directory Integration - Unix Ad Integration - Mac Ad Integration
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Joel Cooper Jul 1, 2014 12:51 PM
We have both cifs/nfs on the same volume all the time. In some areas its a real pain because of the mixed qtree permissions. We have mac users as well and separated them off to their own volume with nfs permissions only.
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Advisability of sharing out the same filesystem via NFS and CIFS at the same time

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