Hp XP P9500 Storage Bedienungsanleitung PDF herunterladen (Seite 100)

DescriptionItem

• Disable: Performs I/O operation with a single path, without load balance.

• A hyphen (-) displays when the Path mode is Single.

The value that is set for the selected external volume is used as the default.

If two or more external volumes with different values are selected, the item

is placed in non-selected status. When the Path Mode of the selected external

volume is Single, the item cannot be selected.

Confirm window

DescriptionItem

Displays parity group numbers.Parity Group ID

External volume’s top LDEV ID.Top LDEV ID

External volume’s top LDEV name.Top LDEV Name

Cache Mode

• Enable: Write data from the host is propagated asynchronously

• Disable: Write data from the host is propagated synchronously

See Cache use and external storage performance (page 14) for more

information.

Inflow Control

• Enable: Limits or prevents write data from being written to cache memory

when the write operation cannot be performed.

• Disable: Allows write data to be written to cache when the write

operation cannot be performed.

See Editing external volume policies (settings) (page 36) for more

information.

Displays I/O load balance system for external storage system.Load Balance Mode

• Normal Round-robin: Performs load balance in round-robin system.

• Extended Round-robin: Load balance system is automatically switched

for sequential I/O and random I/O.

• Disable: Performs I/O operation with a single path, without load balance.

• A hyphen (-) displays when the Path mode is Single.

100 External Storage GUI reference

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Hp XP P9500 Storage Bedienungsanleitung Seite 100