Huawei OceanStor 2000 V3 Series Features Manual page 92

OceanStor V3 Series
HyperMetro Feature Guide for File
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Step 6 Select the disks that comprise the disk domain. There are three ways to select the disks:
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Issue 05 (2018-01-30)
Non-Encrypting Disk: create an unencrypted disk domain.
Self-Encrypting Disk: create an encrypted disk domain.
NOTE
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Non-Encrypting Disk: Non-encrypting disks are common disks that do not support the encryption
function.
l Self-Encrypting Disk: When data is written into or read from a disk, the data is encrypted or
decrypted using the hardware circuit and internal encryption key of the disk. The self-encrypting
disk is a special type of disk. Before using self-encrypting disks, install and configure key
management servers, and complete their interconnections with the storage system. For details, see
OceanStor V3 Series V300R006 Disk Encryption User Guide.
l Encrypted disks are not supported by 2000F, 5000F, 6000F, 18000F series storage systems.
l Self-encrypting and non-encrypting disks cannot exist in the same disk domain.
Select All available disks.
You only need to configure the hot spare policy for the storage tier.
NOTE
It is recommended that you create a disk domain by Manually select disks, ensure that all disks
are from the same engine, so that disk domain on one engine reduces the disk failure probability
and improve the read and write performance of disks.
Select Specify disk type or Specify the number of disks.
– Select Specify disk type (2000, 5000, 6000, 18000 series storage systems).
i. Select the storage tier according to the storage media of disks.
ii. Configure the number of disks for each storage tier.
iii. Configure the hot spare policy for each storage tier.
NOTE
For 18000 series storage systems, the high hot spare policy is used by default. You can
only run the change disk_domain general command on the CLI to modify the hot
spare policy.
– Select Specify the number of disks (2000F, 5000F, 6000F, 18000F series storage
systems).
The number of disks composing the storage tier will be configured.
Select Manually select.
a. Click Select.
b. In the Select Disk dialog box, select the disks you need and click
c. Click OK to finish selecting disks.
d. Configure the hot spare policy for each storage tier.
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