HP StorageWorks XP Remote Web Console Software - Manual (Page 156)

156 Continuous Access XP Journal operations with NAS Blade
• HP StorageWorks Continuous Access XP Journal user guide (this document)
• HP StorageWorks RAID Manager XP user guide
• NAS Backup Restore User’s Guide
Software prerequisites
All of the following program products (PPs) must be installed in the NAS Blade connecting to the
Continuous Access XP Journal P-VOL or S-VOL, and their licenses must be valid.
• Local array
• Continuous Access XP Journal
• Continuous Access XP
• Continuous Access XP Asynchronous
• Business Copy XP (Required when configuring the cascade connection of Continuous Access XP
Journal/Business Copy XP)
• NAS Base Data Control
• NAS Base File Sharing
• NAS Blade Manager
• NAS Backup Restore
• NAS Sync Image (Required when copying the file system managed by NAS Sync Image using
Continuous Access XP Journal)
Notes on operations
• UID for user registration and GID for group registration in primary/secondary sites
With Continuous Access XP Journal, the file owner information (UID and GID in the primary site) and
quota and ACL information for each user (UID in the primary site) and group (GID in the primary site)
included in the source file system are copied to the secondary site. Note the UID for user registration
and GID for group registration in the primary and secondary sites (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 Continuous Access XP 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 Continuous Access XP 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 Continuous Access XP Journal operation
also end in error. Therefore, you should not operate the cluster, nodes, and resource groups during the
Continuous Access XP Journal operation. Should problems occur with the cluster, nodes, or resource
groups, fix them immediately.