Novell Doc: OES 2 SP3: Dynamic Storage Technology Administration Guide - Dynamic Storage Technology Plug-In for Novell Remote Manager for Linux

6.1 Dynamic Storage Technology Plug-In for Novell Remote Manager for Linux

The Dynamic Storage Technology Options plug-in to Novell Remote Manager for Linux allows you to create, manage, and remove shadow volumes built with Novell Storage Services volumes. The plug-in is automatically installed in Novell Remote Manager when you install NCP Server and Dynamic Storage Technology on your OES 2 Linux server.

6.1.1 Accessing Novell Remote Manager

In a Web browser, go to the URL of the server that you want to manage.

For example, enter the following in the address (URL) field:
```
http://server_IP_address:8008 or other_configured_port_number
```
For example:
```
http://192.168.123.11:8008
```
```
https://192.168.123.11:8009
```
Log in to Novell Remote Manager as the root user of the server or as the Novell eDirectory administrator user who has sufficient rights to manage the server and its file systems.

The root user logs in as a local user of the server, not through eDirectory. If eDirectory, Linux User Management, or PAM are not working, the root user can still log in to NRM to manage the server. The root user can always log in directly to the server to manage it.

NRM is PAM-enabled, so any Linux-enabled user can log in. Depending on the user’s trustee rights for the server, the user gets access only to the tasks the user has rights to perform.

6.1.2 Starting, Stopping, or Restarting Novell Remote Manager on Linux

Novell Remote Manager on Linux is installed and runs by default. If it hangs, you can use the /etc/init.d/novell-httpstkd script to get status or to stop, start, or restart httpstkd. For the latest information about httpstkd, see Starting or Stopping HTTPSTKD in the OES 2 SP3: Novell Remote Manager for Linux Administration Guide.

Open a terminal console, then log in as the root user.
At the terminal console prompt, enter the command for the task you need to perform:
Task

Command
Status

rcnovell-httpstkd status
Start

rcnovell-httpstkd start
Stop

rcnovell-httpstkd stop
Restart

rcnovell-httpstkd restart

Task	Command
Status	rcnovell-httpstkd status
Start	rcnovell-httpstkd start
Stop	rcnovell-httpstkd stop
Restart	rcnovell-httpstkd restart

6.1.3 Quick Reference for Dynamic Storage Technology Options

The Dynamic Storage Technology Options plug-in (shown in Figure 6-1) in Novell Remote Manager for Linux is the primary tool for configuring global policies for all DST shadow volumes, creating and managing DST shadow volumes, and configuring shadow volume policies.

Figure 6-1 View File System > Dynamic Storage Technology Options

Table 6-1 describes the management tasks available for the View File Systems > Dynamic Storage Technology Options task in Novell Remote Manager for Linux.

Table 6-1 View File Systems > Dynamic Storage Technology Options

Subtasks	Management Tasks
Volume Information	View a list of NCP volumes and NSS volumes on the server. Click the Add Shadow link next to an NSS volume to view information about where you can create a shadow volume. IMPORTANT:NCP volumes on Linux POSIX file systems are not supported as shadow volumes. This capability is planned for a future release. Click the Inventory link next to a shadow volume to view an inventory report for both the primary and secondary volumes. Click the View Log link next to an NSS volume to download a copy of the audit log for the selected volume.
Add Shadow link	This option takes you to the Share Information page. Scroll down to the Volume Tasks area to find the Add Shadow Volume task. The Share Information page and Add Shadow Volume page do not distinguish or validate whether the volumes you choose are actually supported file systems and available combinations. IMPORTANT:NSS volumes must already exist when you create the shadow volume. The Create if not present option is available for future support of NCP volumes on Linux file systems. Do not use this option for NSS volumes.
Inventory link	View statistics and graphical trend displays for the volume’s files and directories. For a DST shadow volume, the report includes information for both the primary storage area (primary area) and the secondary storage area (shadow area).
Volume Information (Info icon)	NCP share information, such as the Linux file system path for the volume, file system type, NCP volume ID, status, capacity, and cache statistics. Open files listed for each NCP connection. Add a shadow volume for the NCP volume. For unmounted DST shadow volumes, click the Info icon to access the dialog box to remove the shadow volume relationship. This removes the entry in the ncpserv.conf file, but does not delete the volume itself. To unmount a shadow volume, click Manage NCP Services > Manage Shares, then click the Unmount option next to the shadow volume.
Dynamic Storage Technology Policies	Create a new policy. View a list of existing policies. Click the Policy Name link to modify or delete the policy.
Duplicate File Resolution Options	Set a global policy for how to handle duplicate files.
ShadowFS Configuration	Set a global policy for whether to automatically start FUSE and Shadow File System, which are needed to provide access to users via Samba. IMPORTANT:Do not enable ShadowFS if you are using Novell CIFS.

6.1.4 Quick Reference for NCP Server Options

Table 6-2 describes the DST tasks available for the Manage NCP Services > Manage Shares task in Novell Remote Manager for Linux. For a complete list of NCP Server management tasks, see Quick Reference for the NCP Server Plug-In for Novell Remote Manager for Linux in the OES 2 SP3: NCP Server for Linux Administration Guide.

Table 6-2 Manage NCP Services > Manage Shares

Subtasks	Management Tasks
NCP/NSS Bindings	In the Configuration area, click NCP/NSS Bindings to view a list of NSS volumes on the server. Set the NCP Available setting to No for NSS volumes that you want to use as secondary storage locations for DST shadow volumes.
Mount/Unmount	Mount or unmount the primary volume for a shadow volume. The primary volume must be unmounted in order to access the Remove Shadow Volumes task.
Info > Remove Shadow Volume	For unmounted DST shadow volumes, click the Info icon to access the dialog box to remove the shadow volume relationship. This removes the entry in the ncpserv.conf file, but does not delete the two volumes and their data.

6.1.5 Quick Reference for DST Global Policy Settings

Table 6-3 describes the DST parameters available for the Manage NCP Services > Manage Server task in Novell Remote Manager for Linux. For descriptions of the parameters, see Section A.4.1, Understanding DST Parameters for the SET Command.

Table 6-3 Manage NCP Services > Manage Server > Server Parameter Information

Parameter Name	Default Value	Valid Values
SHIFT_MODIFIED_SHADOW_FILES	1	0 - Disable 1 - Allow
SHIFT_ACCESSED_SHADOW_FILES	0	0 - Disable 1 - Allow
SHIFT_DAYS_SINCE_LAST_ACCESS	1	0 - Disable 1 to 365 (in days)
DUPLICATE_SHADOW_FILE_ACTION	0	0 - Show duplicate shadow files (default) 1 - Hide duplicate shadow files 2 - Rename duplicate shadow files 3 - Delete duplicate files from shadow area 4 - Move duplicate shadow files to /._DUPLICATE_FILES
DUPLICATE_SHADOW_FILE_BROADCAST	1	0 - Disable 1 - Allow
REPLICATE_PRIMARY_TREE_TO_SHADOW	0	0 - Disable 1 - Allow

6.1.6 Shadow Volume Inventory and Trustee Reports

In Novell Remote Manager, the Volume Inventory feature detects shadow volumes and displays information from the primary and secondary volumes. The complete inventory profile displays three categories of information: combined areas, primary area, and shadow area. With Novell Remote Manager’s shadow volume inventory, you can also select files that meet specific criteria (such as files that have not been accessed for two years, files that have not been modified in a year, all .mp3 files, and so on). Use the inventory information to profile each area’s files and move them as needed.

For general information about the volume inventory feature, see Generating Inventories for Directories or NCP Volumes OES 2 SP3: Novell Remote Manager for Linux Administration Guide.

Novell Remote Manager also allows you to generate a trustee report for the shadow volume. For information, see Generating and Viewing NCP Trustee Reports for NSS Volumes OES 2 SP3: Novell Remote Manager for Linux Administration Guide.