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Rapid parity initialization – HP Smart Storage Administrator User Manual

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Operations 27

By default, HP SSA Smart Path is enabled on SSD drives.

8.

Under Configure>Devices, choose the array with the logical drive(s) you just created.

9.

If you want to disable HP SSA Smart Path, click Disable HP SSD Smart Path.

10.

Click Save.

Rapid Parity Initialization

When you create a logical drive, you must initialize the parity using Rapid Parity Initialization.
RAID levels that use parity (RAID 5, RAID 6 (ADG), RAID 50, and RAID 60) require that the parity blocks be
initialized to valid values. Valid parity data is required to enable enhanced data protection through

background surface scan analysis and higher performance write operations. Two initialization methods are

available:

Default – Initializes parity blocks in the background while the logical drive is available for access by the
operating system. A lower RAID level results in faster parity initialization.

Rapid – Overwrites both the data and parity blocks in the foreground. The logical drive remains
invisible and unavailable to the operating system until the parity initialization process completes. All

parity groups are initialized in parallel, but initialization is faster for single parity groups (RAID 5 and
RAID 6). RAID level does not affect system performance during rapid initialization.

Rapid Parity Initialization is available only for supported controllers and in arrays composed of supported

physical drives.
To select the method for parity initialization:

1.

Open HP SSA.