Identifying and Creating Proxied Volumes
Refer to About Proxied Volumes for an overview. Proxy Mode must be enabled to identify and create proxied volumes, see Enabling/Disabling Proxy Mode.
After enabling Proxy Mode and restarting the storage server, logical volumes previously managed by SANmelody software will continue to be managed by SANmelody. However, physical disks attached to the SANmelody storage server after you enable Proxy Mode will not be automatically labeled and managed by SANmelody software. The volumes attached to the storage server after Proxy Mode is enabled will be visible in the Physical Disks component of Disk Manager, where they will be identified as Proxied Volume candidates. Once the volume has been proxied, it is hidden from the local operating system and can only be accessed by an application server via a SANmelody virtual volume mapping.
The graphic below shows Disk Manager with Proxy Mode enabled and the Proxy Volume icons activated in the toolbar (circled). (The Proxy Volume icons only appear when Proxy Mode is enabled and Proxied Volume candidates are available.) Refer to Disk Manager Icons for complete descriptions of the icons in the Disk Manager Toolbar.
To Identify and Create a Proxied Volume
- In the SANmelody snap-in, open Disk Manager in the console tree.
- Select the Physical Disks component in the console tree to view a list of available physical disks in the right pane. Proxied Volume candidates are identified by the icon
next to the disk number in the first column.
- Select the volume to proxy in the list and click the Make Proxied Disk icon
in the toolbar. (Alternatively you can select Create Proxied Volume from the context menu.) The property of the disk in the list changes to ProxiedHidden.
WARNING: DO NOT select Create Standard Disk from the context menu or select the icon
. Selecting this option will write a SANmelody label to the disk, corrupting live data and cannot be undone. Thus, this option should never be selected for a volume that you want to identify as a Proxied Volume. Note: After labeling a disk as a standard disk, it can never be used as a proxied volume.
- The proxied volume will be added to the volumes in the Virtual Volumes snap-in and can be identified by the disk number. Create a virtual volume from this proxied volume. SANmelody software can manage the volume in the same manner as any other volume.
CAUTION: You should disable Proxy Mode after migrating the data and removing the volume (See Deleting Proxied Volumes). Whereas a storage server with Proxy Mode disabled automatically discovers and labels new storage, when in Proxy Mode it is necessary to manually identify all newly-discovered storage either as Proxied Volumes or SANmelody-managed standard disks in Disk Manager.