HP XP Continuous Access Software - Manual (Page 171)

(as explained in the following sections) when you share the NFS/CIFS and set the quota or
ACL in the target file system.
◦ Register the same user name (or group name) in both sites. The quota and ACL settings
are also the same.
For local authentication, assign the same UID (or GID) to the same user name (or group
name) in both sites. For NIS, share the NIS server in both sites. For domain authentication,
share the domain controller.
◦ Register the same user name (or group name) in both sites. (The quota or ACL settings
are different for each site.)
Set the quotas or ACLs again in the secondary site each time the XP Continuous Access
Journal volume pair is split.
◦ Register the user (or group) in only one site.
For local authentication, do not assign the target UID (GID) in another site to ensure that
the UID is not overlapped with the UID (or GID) of the another user in the another site.
For NIS, share the NIS server in both sites. For domain authentication, share the domain
controller.
•
Mounting the NFS client for a file system whose data is backed up online
If you perform online backup for a file system accessed by the NFS client by secondary copy,
you must specify NFS version 3 before mounting a NAS Blade file system on the NFS client.
If you specify NFS version 2, you must specify the
hard option before mounting a NAS Blade
file system on the NFS client.
•
Limitations on XP Continuous Access operations due to the status of cluster, nodes, and resource
groups
When a cluster is not configured, the cluster is stopped, nodes are stopped, resource groups
are offline, and connecting the device file or creating and mounting a file system is restricted.
Due to these restrictions, the following operations performed in the target XP Continuous Access
Journal operation also end in error. Therefore, you should not operate the cluster, nodes, and
resource groups during the XP Continuous Access Journal operation. Should problems occur
with the cluster, nodes, or resource groups, fix them immediately.
◦ Unmount and mount the source file system during the splitting of an XP Continuous Access
Journal pair volume.
◦ Connect the target file system to the NAS package.
◦ Unmount and delete the target file system before the XP Continuous Access Journal pair
is resynchronized.
•
Notes on changing system configuration during XP Continuous Access Journal operations
When changing the following system configurations during XP Continuous Access Journal
operations, you must change the XP RAID Manager configuration definition files in CL1 and
CL2 to which the XP Continuous Access Journal P-VOL is connected, and in CL1 and CL2
where the S-VOL is used:
◦ Changing fixed IP addresses
◦ Expanding or deleting source file systems
◦ Setting up, expanding, or releasing differential-data storage devices for NAS Sync Image
Notes on operations 171