HP Systems Insight Manager 5.2 Update 2 Technical Reference Guide

HP SIM discovers external LUs (a feature of External Storage XP) on XP arrays that are managed by Command
View XP Advanced Edition. When an XP array has external LUs, the Total Capacity value is higher than
the total capacity of all of the disks in that XP array because it includes the capacity from the external LUs.
▲ Total Capacity This is the total capacity of the array and it can be used in the following ways:
• Raw Space that is not configured for a specific purpose.
• Assigned Space that is assigned to pools of storage that can be configured into storage volumes
(LUNs).
• Allocated Space configured as storage volumes, but not connected through a port. Applications
cannot access this space until it is assigned to a port.
• Exposed Space configured as storage volumes that is connected through one or more ports.
Applications can access this space.
• RAID Overhead Space on the array that is not directly usable because it is being used to provide
redundancy. For example, if 100 GB is allocated for a RAID 1 (mirrored) storage volume, 50 GB
are directly usable (Allocated or Exposed), and 50 GB is RAID Overhead to provide the mirrored
copy of the data.
• Other Space that is not accounted for by the previously listed categories. Other space is typically
space that is required for metadata.
Related topics
• System Page
• System tab
• Port types
• Data collection
System tab for a tape library
A tape library is a tape drive that is connected to a storage area network (SAN). Additional links are available
on the System Page to access detailed information when a tape library is selected. Included here are the
areas that are unique to tape libraries. HP SIM displays data supplied by the tape library's SMI-S provider .
If the SMI-S provider does not supply data for a particular property, the property does not appear on this
page. See “System tab” for additional information about the tab.
The Ports, Media Access Devices, and Changer Devices sections show the date, time, and duration of the
last data collection task. If you want to update the data, click the Last Update link, and schedule or run a
Data Collection task. See “Data collection” for additional information about data collection tasks.
If this tape library is managed by HP Storage Essentials, the Ports, Media Access Devices, and Changer
Devices sections do not appear on this page, and an SE System Properties link appears in the Storage
Essentials Pages section on the Tools & Links tab. Click the SE System Properties link to view the
Storage Essentials device page for this tape library.
The Quick Launch link provides instant access to a short list of frequently used tools. Place your cursor over
the link to expand the menu and view the tools available for the systems that are currently displayed. Selecting
a tool from this list bypasses the target verification page of the Task Wizard, regardless of the Task Wizard
settings. Tools launched with this menu cannot be scheduled. The menu can be customized by clicking the
Customize link in the Quick Launch menu.
Product Description
NOTE: This section can be expanded by clicking or collapsed by clicking .
In addition to the Product Description information on the “System tab”, this section includes the following
information:
• System Subtype Storage systems use the following subtypes:
450 Tools that extend management