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PowerStore NAS permission
Created a NAS server and an NFS file export. When I mount the NFS export I cannot write to it without changing the permissions to read/write/exec for all users.
Is there a better way of providing read/write access automatically to systems that have permission to mount the export?
Is this file system-level permission or NAS server-level permission?
hdna2004
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October 12th, 2022 08:00
Hello @pbnair-22
Yes, PowerStore 3.0 supported file replication. File system and NAS server replication sessions are created by assigning a protection policy with a replication rule to a NAS server. Once applied to a NAS server, the NAS server and all underlying file systems are replicated to the destination system.
Please see an example from the Dell Powerstore File Replication video
For file system snapshots, the method of access directly depends on the type of snapshot that was taken.
File System Snapshots Types:
Protocol (Read-Only)
-Accessed by creating an SMB share and/or NFS Export and choosing a snapshot
Snapshot (Read-Only)
-Accessed through previous versions or .snapshot
Please refer to the Dell PowerStore snapshot whitepaper pages 18-21 under Snapshot access section.
hdna2004
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October 11th, 2022 20:00
Hello @pbnair-22 ,
You can configure default access for NFS export or manually specify access for the individual host. This can be done while creating new NFS export or modifying the setting for the existing NFS export.
Default Access is applied to all hosts. The default setting is No Access.
ADD HOST is to manually specify access type for hosts.
Configure host access while creating new NFS export:
Modified host access for existing NFS Export:
Select Storage-->File Systems-->NFS Exports
Then configure default access or add host manually:
The different types of access options include:
pbnair-22
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October 12th, 2022 04:00
Thanks, Hong.
Can we configure the NFS export replication to the DR site using file replication ?
Can snapshots be exposed so a particular file can be retrieved? Basically, I want to be able to recover a corrupted file.
pbnair-22
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October 12th, 2022 08:00
Thank you, Hong.
pbnair-22
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October 12th, 2022 10:00
User-created an NFS export and provided the read, and write access to a host. But on the host, the user can not create any file. Attached here is the screenshot. Also how the user can get access to only the export, but not the root of the NAS servers?
hdna2004
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October 12th, 2022 20:00
Hi @pbnair-22
Use access type "Read/Write, allow Root" to grant revoked access permissions.
Read/Write, allow Root—Hosts have permission to read and write to the storage resource or share, and to grant revoked access permissions (for example, permission to read, modify, and execute specific files and directories) for other login accounts that access the storage. The root of the NFS client has root access to the share.
To grant user access to only specific NFS export, you can create a low-level NFS Export to an existing folder/directory within the file system that was created from the host side.
Example as below: