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Logical disks tab – HP 3PAR Operating System Software User Manual

Page 175

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The following information is displayed in the detail pane's Advanced tab:

Description

Field

Group

Indicates if the volume is a system volume.

System Volume

Policies

Indicates if stale snapshots are allowed.

Allow stale snapshots

Indicates if exporting is restricted to only one host.

Restrict export to one host

Indicates if the zero-fill on partially written data pages
policy is enabled.

Zero-fill on partially written data
pages

Indicates if Zero detect is enabled.

Zero detect

Indicates if RW caching and read ahead has been
enabled.

Caching Enabled

The number of sectors per track.

Sectors Per Track

Geometry

The number of heads per cylinder.

Heads Per Cylinder

The size of each sector in KiB.

Sector Size

The number of copy zones.

Copy

Zones

The number of free copy zones.

Free Copy

The number of admin space zones.

Admin

The number of free admin space zones.

Free Admin

Logical Disks Tab

The following information appears in the detail pane's Logical Disks tab:

Description

Column

The name of the logical disk.

Name

The domain in which the logical disk is located.

Domain

The current state of the logical disk. See

“System and Component Status Icons” (page 506)

.

State

The disk type, Fast Class (FC), Nearline (NL), or Solid State (SSD).

Device Type

The speed of the disk in thousands of RPM.

Device RPM

NOTE:

The Device RPM number does not represent a rotational speed for the drives without spinning media (SSDs).

It is meant as a rough estimation of the performance difference between the drive and the other drives in the system.
For FC and NL drives, the number corresponds to both a performance measure and actual rotational speed. For an
SSD drive, the number is to be treated as relative performance benchmark that takes into account in I/O per second,
bandwidth, and the access time.

Viewing Virtual Volumes

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