User manual

52
Dashboard
The Storage Manager dashboard provides an overview for IT administrators to easily monitor and
manage storage allocations.
Overview
There are three sections on the page: Disk, Volume/LUN and Storage Pool. They are described below:
 Disk: The physical hard disk drives and their associated storage hosts (including both the NAS
and its connected expansion enclosures) are shown in this section. Click the hard disk drive icon
to bring up the Disk Health window. For details on the Disk Health window, please refer to the
Disks chapter.
 Volume/LUN: All available logical volumes, their capacity and type (Volume, LUN and Unused) are
listed in this section. For details on volumes and LUN, please refer to the Volumes chapter.
 Storage Pool: This section provides a space usage overview on the storage pool created on the
NAS. You can check the space distribution on the pie chart for each storage pool (including the
size of reserved system space, thick volume and free space) and its subscription. Subscription is
the ratio between claimed space and available space in the storage pool. If a user creates a
thin-provisioned volume with 10TB claimed space, while the available space is only 1TB, the
"Subscription" value in the "Overview" page will be 10:1, meaning that the thin-provisioned space
is oversubscribed and users must note that the available space in storage pool is too low. You can
also click on the down arrow next to the storage pool to switch between storage pools. For details
on storage pools, please refer to the Storage Pools chapter.
Utilization