Solved

cannot write to nfs mounted file system on netapp array

Posted on 2010-08-25
6
2,906 Views
Last Modified: 2013-12-21
cannot write to nfs file system root# chown oracle:dba prodbackup

chown: prodbackup: Not owner


root# ls -al prodbackup

drwxr-xr-x 3 root root 4096 Aug 25 15:40 .
drwxr-xr-x 52 root root 1536 Aug 25 15:29 ..
drwxrwxrwx 2 root root 4096 Aug 25 15:40 .snapshot


root# chmod 777 prodbackup
chmod: WARNING: can't change prodbackup

As root I cannot create a directory on this nfs netapp file system and I want to change the owner/group
Why can't I do this as root?

0
Comment
Question by:bkreynolds48
  • 3
  • 2
6 Comments
 
LVL 68

Expert Comment

by:woolmilkporc
ID: 33524280
Hi,
This is called "root quashing"
Basically, if a user with ID 0 is accessing a share, this ID is converted to (usually) -2, to prevent remote root actions.
The share needs to be exported with the "no-root-quash" option.
Don't know whether this is possible with NetApp, however.

wmp
0
 
LVL 1

Author Comment

by:bkreynolds48
ID: 33524294
If it is possible on a netap how is that done?
0
 
LVL 9

Expert Comment

by:jeremycrussell
ID: 33524327
First comment is correct.

In your "exports" file set sec=sys and root=hostname or IP of machine (if you use hostname, you'll want to probably add a host entry to the NetApp.

You can do this through GUI as well I think...

So, you end up with an entry like below.

/vol/nameofvol -sec=sys,rw,root=host

Then you can just reload your exports file using exportfs.
0
Complete VMware vSphere® ESX(i) & Hyper-V Backup

Capture your entire system, including the host, with patented disk imaging integrated with VMware VADP / Microsoft VSS and RCT. RTOs is as low as 15 seconds with Acronis Active Restore™. You can enjoy unlimited P2V/V2V migrations from any source (even from a different hypervisor)

 
LVL 68

Accepted Solution

by:
woolmilkporc earned 500 total points
ID: 33524454
- Connect to NetApp web-interface
   
- Modify NFS exports:

    NFS -> Manage Exports
     Select the volume in question
     Enable: Read-Write Access, Root Access, Security

That should do the trick.

0
 
LVL 68

Expert Comment

by:woolmilkporc
ID: 33524474
For security reasons you can configure additionally (also in NFS -> Manage Exports:

Root Hosts: 1111.1111.111.0/24 (host or subnet)

0
 
LVL 1

Author Closing Comment

by:bkreynolds48
ID: 33524501
Thanks so much - just started using netapp
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

When you do backups in the Solaris Operating System, the file system must be inactive. Otherwise, the output may be inconsistent. A file system is inactive when it's unmounted or it's write-locked by the operating system. Although the fssnap utility…
This tech tip describes how to install the Solaris Operating System from a tape backup that was created using the Solaris flash archive utility. I have used this procedure on the Solaris 8 and 9 OS, and it shoudl also work well on the Solaris 10 rel…
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
Learn how to navigate the file tree with the shell. Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question