DataCore Disks

In this topic:

About DataCore disks

Viewing details

Also see:

Multipath Support

About DataCore disks

When a virtual disk is created and then served to a DataCore Server in the same server group, it is automatically discovered as a special type of physical disk referred to as a DataCore disk and can be used as storage. DataCore disks retain the original virtual disk name and appear in the DataCore Servers panel under DataCore disks for the server to which it is served. (Note: If the same virtual disk is served to a DataCore Server in a different server group, it is discovered as a DataCore Virtual Disk and will appear under Physical Disks in the panel.)

See Serving Virtual Disks for special notes about serving virtual disks to DataCore Servers.

DataCore disks can be added to disk pools as long as the pool does not belong to a server that created the source virtual disk. For instance, if a mirrored virtual disk is created using storage sources from Server1 and Server2. That virtual disk could be served to Server3, discovered as a DataCore disk and added to a pool on Server3 (but not on Server1 or Server2).

DataCore disks are also listed in the DataCore Server Details page>DataCore disks tab.

Viewing DataCore disk Details

Each DataCore disk has a DataCore Disk Details page with detailed information for the disk.

The details page displays the following information at the top of the page:

  • Status is displayed under the icon. See Physical Disk Status for more information.
  • Possible types include:
    • Basic
    • Dynamic
    • Uninitialized
    • Pool (if added to a pool)
    • Pass-through (if used in a virtual disk)
    • MirrorDisk (if used as a pool disk mirror)
    • Unknown
  • Size
  • Sector size
  • Name of the source virtual disk.
  • The DataCore disk name can be changed by clicking Edit at the top of the page. After the change is made, click Done.

To open the details page:

  1. In DataCore Servers panel, expand DataCore disks and click the disk to open the details page.
  2. Information is organized under tabs (described below). Click on a tab to view the information.
DataCore disk Details Tabs

Info tab

Provides general information about the disk:

Identification and Usage

  • Vendor specifications (vendor - DataCore, product - Virtual Disk, revision - DCS, serial number)
  • Unique identifier from page 83 of the vital product data (Device Identification Page)
  • Partitioned
  • Amount of free space and allocated space and space in reclamation will be displayed if the disk is from a pool. Reclamation is the process of removing old data on the disk and it occurs when a disk is added to a pool or when a previously used virtual disk from a pool is deleted and the space is returned to the pool.
  • Disk Information per Server
  • DataCore Server, index, disk sector size, SCSI path to the device (Port.Bus.Target.LUN), status

Settings tab

This tab allows the following settings for the physical disk to be changed:

Paths tab

Lists the initiator and target ports for the disk paths. The state of each path (Active, Not, or Applicable) and LUN is also included.

Performance tab

Displays real-time performance counter measurements for the disk. See Live Performance.

Events tab

Lists events for the disk. Click an event in the list to view details in the Message Text area at the bottom of the tab. See Event Log and Alerts.