Administrator Guide

• The NAS volume has reached full capacity and the le system denies any write requests, including
overwrites.
• The NAS volume is a target in a replication and is read-only.
Workaround
1 If the problem appears only on some les, this is a permission issue. Verify that the user account has
modify permissions on the le or use a dierent user account.
2 If the problem is related to a specic NAS volume, verify there is enough free space on the NAS volume
or expand it, and verify that the accessed NAS volume is not a target of a replication.
Mixed File Ownership Denied
Description Both the le owner and group owner must be from the same identity type (UNIX vs. NTFS). An attempt to
set dierent identity types was detected.
Cause It is impossible to change only the le owner ID to UID if the original le ownership is SID/GSID.
Workaround To change the le ownership to UNIX style ownership, set UID and GID at same time.
Problematic SMB Access From a UNIX/Linux Client
Description A UNIX/Linux client is trying to mount a FluidFS cluster SMB share using SMB (using /etc/fstab or
directly using smbmount).
Cause A UNIX/Linux client is trying to access the le system using the smbclient command, for example:
smbclient //<FluidFS_cluster_name>/<SMB_share> -U user%password -c ls
Workaround It is recommended that you use the NFS protocol interfaces to access the FluidFS cluster le system from
UNIX/Linux clients. To work around this issue:
1 Ensure that the administrator creates NFS exports to the same locations that you use to access using
SMB and connect to them using the mount command from UNIX/Linux clients.
2 Use NFS-based interfaces to access the FluidFS cluster. For example, from the NAGIOS Linux
management system, use the
/check_disk command instead of the /check_disk_smb command.
Strange UID and GID Numbers on Dell NAS System Files
Description
New les created from Ubuntu 7.x clients get the UID and GID of 4294967294 (nfsnone).
Cause By default, Ubuntu 7.x NFS clients do not specify RPC credentials on their NFS calls. As a result, les created
from these clients, by any user, are owned by 4294967294 (nfsnone) UID and GID.
Workaround To force UNIX credentials on NFS calls, add the sec=sys option to the FluidFS cluster mounts in the Ubuntu
fstab le.
Troubleshoot Networking Problems
This section contains probable causes of and solutions to common networking problems.
Name Server Unresponsive
Description
All NIS, LDAP, or DNS servers are unreachable or not responding.
Workaround For each server:
FluidFS Administration 505