Administrator Guide

Table 5. Port information (continued)
Port type Information displayed for the port type
iSCSI IPv6 port Name, type, ID (IQN), status, configured speed, actual speed, IP version, MAC address, IP address, SFP
status, part number, 10G compliance, cable length, cable technology, Ethernet compliance, default router,
link-local address, and health
SAS port Name, type, ID (WWN), status, actual speed, topology, expected lanes, active lanes, disabled lanes, cable
type, and health
The area between the blocks displays the following statistics that show the current performance from all hosts to the system:
●
Current IOPS for all ports, calculated over the interval since these statistics were last requested - every 30 seconds unless
more than one PowerVault Manager session is active or if the CLI command show host-port-statistics is issued - or
reset.
● Current data throughput (MB/s) for all ports, calculated over the interval since these statistics were last requested or reset.
Capacity information
The Capacity block shows two color-coded bars. The lower bar represents the physical capacity of the system, showing the
capacity of disk groups, spares, and unused disk space, if any. The upper bar identifies how the capacity is allocated and used.
The upper bar shows the reserved, allocated, and unallocated space for the system. Reserved space refers to space that is
unavailable for host use. It consists of RAID parity and the metadata that is needed for internal management of data structures.
The terms allocated space and unallocated space have the following meanings:
For virtual storage:
● Allocated space is the amount of space that the data written to the pools takes.
● Unallocated space is space that is designated for a pool but has not been allocated to a volume within that pool.
● Uncommitted space is the overall space minus the allocated and unallocated space.
For linear storage:
● Allocated space is the space that is designated for all volumes. When a linear volume is created, space equivalent to the
volume size is reserved for it. This is not the case for virtual volumes.
● Unallocated space is the difference between the overall and allocated space.
If virtual storage is overcommitted, which means that the amount of storage capacity that is designated for use by volumes
exceeds the physical capacity of the storage system, then the right upper bar is longer than the lower bar.
Hover the cursor over a segment of a bar to see the storage size of that segment. Point anywhere in this block to see the
following information about capacity utilization in the Capacity Utilization panel:
● Total Disk Capacity: The total physical capacity of the system.
● Unsued: The total unused disk capacity of the system.
● Total Spares: The total spare capacity of the system
● Virtual/Linear Disk Groups: The capacity of disk groups, both total and by pool.
● Reserved: The reserved space for disk groups, both total and by pool.
● Allocated: The allocated space for disk groups, both total and by pool.
●
Unallocated: The unallocated space for disk groups, both total and by pool.
● Uncommitted: The uncommitted space in each pool (total space minus the allocated and unallocated space) and total
uncommitted space.
Storage information
The Storage A and Storage B blocks provide more detailed information about the logical storage of the system. The Storage
A block shows information about virtual pool A, which is owned by controller A. For linear storage, it shows most of the same
information for all of the linear pools owned by controller A. The Storage B block shows the same types of information about
virtual pool B or the linear pools owned by controller B. In a single-controller system, only the storage block relevant to that
controller will be shown (for example, only the Storage A block will be shown if controller A is the sole operating controller).
Each storage block contains color-coded graphs for virtual and linear storage.
For virtual storage, the block contains a pool capacity graph, a disk group utilization graph, and—if read cache is configured—a
cache utilization graph. The pool capacity graph consists of two horizontal bars. The top bar represents the allocated and
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