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OceanStor 2200 V3 and 2600 V3 Storage System V300R005 Command Reference 06

"Based on the CLI provided by the DeviceManager, this document describes how to use variouscommands classified by functions and how to set the CLI and manage the storage system throughthese commands."
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add storage_pool tier

add storage_pool tier

Function

The add storage_pool tier command is used to add a storage tier to a storage pool.

Format

add storage_pool tier pool_id=? disk_type=? capacity=? [ raid_level=? ]

Parameters

Parameter

Description

Value

pool_id=? ID of a storage pool to which you want to add a storage tier.

To obtain the value, run "show storage_pool general".

disk_type=? Type of a disk that you want to add.

The value can be "SAS", "NearLine_SAS", "SSD", "SAS_SED", "NearLine_SAS_SED","SSD_SED" or "SATA" where:

  • "SAS": indicates serial attached SCSI (SAS) disks.
  • "NearLine_SAS": indicates near line SAS (NearLine_SAS) disks.
  • "SSD": indicates solid state drives (SSDs).
  • "SAS_SED": indicates serial attached SCSI (SAS) self-encrypting disks.
  • "NearLine_SAS_SED": indicates near line SAS (NearLine_SAS) self-encrypting disks.
  • "SSD_SED": indicates solid state self-encrypting drives.
  • "SATA" : Serial Advanced Technology Attachment(SATA) disks.
NOTE:
The following describes the disk type supported by each storage tier:
  • Tier 0 (high performance tier): SSD or SSD_SED
  • Tier 1 (performance tier): SAS disk or SAS_SED
  • Tier 2 (capacity tier): NearLine_SAS disk, NearLine_SAS_SED or SATA disk
capacity=? Capacity that you want to add.

The value is in the format of "capacity value + unit". The unit can be GB or TB.

The value ranges from 1 GB to 12864 TB.

raid_level=? RAID level of a storage tier that you want to add.

The default value can be "RAID6-4", "RAID6-6", "RAID6-10", "RAID6-18", "RAID5-3", "RAID5-5", "RAID5-9", "RAID50-6", "RAID50-10", "RAID50-18", "RAID3-3", "RAID3-5", "RAID3-9", "RAID0", "RAID10", "RAID1-2", or "RAID1-4" and the non-default value can be "RAID3-N", "RAID5-N", or "RAID6-N", where:

  • "RAID6-4": indicates a RAID 6 group that contains four logical blocks (two data blocks and two parity blocks).
  • "RAID6-6": indicates a RAID 6 group that contains six logical blocks (four data blocks and two parity blocks).
  • "RAID6-10": indicates a RAID 6 group that contains ten logical blocks (eight data blocks and two parity blocks).
  • "RAID6-18": indicates a RAID 6 group that contains eighteen logical blocks (sixteen data blocks and two parity blocks).
  • "RAID5-3": indicates a RAID 5 group that contains three logical blocks (two data blocks and one parity block).
  • "RAID5-5": indicates a RAID 5 group that contains five logical blocks (four data blocks and one parity block).
  • "RAID5-9": indicates a RAID 5 group that contains nine logical blocks (eight data blocks and one parity block).
  • "RAID50-6": indicates a RAID 50 group that contains six logical blocks (four data blocks and two parity blocks).
  • "RAID50-10": indicates a RAID 50 group that contains ten logical blocks (eight data blocks and two parity blocks).
  • "RAID50-18": indicates a RAID 50 group that contains eighteen logical blocks (sixteen data blocks and two parity blocks).
  • "RAID3-3": indicates a RAID 3 group that contains three logical blocks (two data blocks and one parity block).
  • "RAID3-5": indicates a RAID 3 group that contains five logical blocks (four data blocks and one parity block).
  • "RAID3-9": indicates a RAID 3 group that contains nine logical blocks (eight data blocks and one parity block).
  • "RAID0": indicates a RAID 0 group whose number of logical blocks is automatically specified by the system.
  • "RAID10": indicates a RAID 10 group whose number of logical blocks is automatically specified by the system.
  • "RAID1-2": indicates a RAID 1 group that contains two logical blocks (the two logical blocks store the same data and mirror each other).
  • "RAID1-4": indicates a RAID 1 group that contains four logical blocks (the four logical blocks store the same data and mirror each other).
  • "RAID3-N": indicates a RAID 3 group that contains N logical blocks (3 <= N <= 14) (N-1 data blocks and one parity block)
  • "RAID5-N": indicates a RAID 5 group that contains N logical blocks (3 <= N <= 14) (N-1 data blocks and one parity block).
  • "RAID6-N": indicates a RAID 6 group that contains N logical blocks (4 <= N <= 28) (N-2 data blocks and two parity blocks).
NOTE:
  • The number of data blocks on each tier is 1X, 2X, 4X, and 8X.
  • You are advised to create RAID 6 groups on the capacity tier to ensure data security.

Level

Administrator

Usage Guidelines

None

Example

Add a 2 GB storage tier that supports SAS disks to storage pool "0".

admin:/>add storage_pool tier pool_id=0 disk_type=SAS capacity=2GB
WARNING: You are going to expand tier to storage pool.
Suggestion: Before you perform this operation, ensure that you have selected the correct storage pool to be expanded and correct tier type for expansion.
Have you read the warning message carefully?(y/n)y
Are you sure you really want to perform the operation?(y/n)y
Command executed successfully.

System Response

None

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Updated: 2019-07-22

Document ID: EDOC1000106139

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