NFS Write to Read-Only Export

Description

NFS client tries to perform modifications on a read-only export.

Cause

An NFS export can be defined as a read-only export. A client

 

accessing a read-only export cannot perform write operations or

 

modify included files.

Workaround

This event, by itself, does not require any administrative

 

intervention.

 

 

NFS Write to Read-Only Volume

Description

An NFS user tries to modify a file on a read-only volume.

Cause

A NAS volume becomes read-only when it is set as the target in a

 

replication relation. Modifying a read-only volume is inhibited,

 

until the replication relation is removed and the volume returns to

 

a simple, normal state.

Workaround

Inform the user(s) of the state of the NAS volume.

 

 

NFS Write to Snapshot

Description

An NFS user tries to modify a file located in a snapshot.

Cause

NAS volume snapshots cannot be modified by design.

Workaround

Snapshot data cannot be modified. A snapshot is an exact

 

representation of the NAS volume data at the time of its creation.

 

 

NFS Access Denied to a File or Directory

Description

User cannot access the NFS file or directory despite the fact that

 

the user belongs to the group owning the NFS object and the

 

group members are permitted to perform the operation.

Cause

NFS servers (versions 2 and 3) use the Remote Procedure Call

 

(RPC) protocol for authentication of NFS clients. Most RPC

 

clients have a limitation, by design, of up to 16 groups passed to

 

the NFS server. If a user belongs to more than 16 UNIX groups, as

 

supported by some UNIX flavors, some of the groups are not

 

passed and are not checked by the NFS server and thus the user's

 

access may be denied.

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Troubleshooting

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Dell NX3500 manual NFS Write to Read-Only Export, NFS Write to Read-Only Volume, NFS Write to Snapshot, 168

NX3500 specifications

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