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OceanStor Dorado 3000, Dorado 5000, and Dorado 6000 6.0.0 Installation Guide

This document describes the hardware installation procedures of the product, covering the following parts: safety precautions, device installation, cabling, hardware installation check, power-on and status check, and initialization.

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Disk Enclosure Connection Planning

Disk Enclosure Connection Planning

Work out a proper connection plan before installing storage devices. Complying with the connection principles can improve the installation efficiency.

Disk Enclosure Connection Principles

In the rear view of a disk enclosure, the upper expansion module is module A and the lower one is module B. Identifiers are attached to the expansion modules.

Connection Principles

Before the planning, note the following:
  • Bend cables naturally and reserve at least 97 mm clearance in front of the enclosure for winding cables.
  • Ensure that common disk enclosures and smart disk enclosures are not connected to the same expansion loop.
  • If a storage system is configured with two or more disk enclosures, form multiple expansion loops based on the number of expansion ports on the controller enclosure, and distribute the disk enclosures evenly to each loop. If smart disk enclosures are connected to swappable RDMA interface modules on the controller enclosure, it is strongly recommended that you configure the same number of loops on each swappable RDMA interface module.
  • The number of disk enclosures connected to the expansion ports on the controller enclosure and those connected to the back-end ports must not exceed the upper limit.
  • Connect the expansion module on controller A to expansion module A on each disk enclosure and the expansion module on controller B to expansion module B on each disk enclosure.
  • A pair of SAS ports can connect up to two SAS disk enclosures. To ensure performance, you are advised to connect to one SAS disk enclosure.
  • A pair of RDMA ports can connect up to two smart disk enclosures. To ensure performance, you are advised to connect to one smart disk enclosure.

Connection Planning

To ensure network reliability, connect disk enclosures in the same expansion loop in forward redundancy mode so that two independent links are set up between the disk enclosures for mutual backup. In the expansion loops shown in Figure 2-10, Figure 2-11, and Figure 2-12, the orange and blue lines represent two independent links in mutual backup. A controller failure does not cause all expansion loops to fail.
  • A 2 U controller enclosure of Dorado 3000 V6 can connect only to a SAS disk enclosure, but not a smart disk enclosure. Controllers A and B respectively provide three interface module slots. A 12 Gbit/s SAS interface module can only be installed in slot IOM 2. For details about the interface module slot layout, see Figure 2-8.
  • A 2 U controller enclosure of Dorado 5000/6000 V6 provides either 12 Gbit/s SAS or 100 Gbit/s RDMA onboard expansion ports for connection to disk enclosures, depending on the actual configuration. Each of controllers A and B provides six interface module slots. For the slot layout, see Figure 2-9.
    • When the controller enclosure provides 12 Gbit/s SAS onboard expansion ports, the recommended slot sequence for installing a 100 Gbit/s RDMA interface module is as follows: IOM 5 > IOM 4 > IOM 3 > IOM 2 > IOM 1 > IOM 0; the recommended slot sequence for installing a 12 Gbit/s SAS interface module is as follows: IOM 5 > IOM 4 > IOM 3.
    • When the controller enclosure provides 100 Gbit/s RDMA onboard expansion ports, the recommended slot sequence for installing the 100 Gbit/s RDMA interface module is as follows: IOM 5 > IOM 4 > IOM 3 > IOM 2 > IOM 1 > IOM 0. A 12 Gbit/s SAS interface module cannot be installed in any one slot between IOM 5 and IOM 0.
  • The 12 Gbit/s SAS interface modules are used to connect SAS disk enclosures, and the 100 Gbit/s RDMA interface modules are used to connect smart disk enclosures.
Figure 2-8 Layout of interface module slots (on Dorado 3000 V6)

Figure 2-9 Layout of interface module slots (on Dorado 5000/6000 V6)

The following networking diagrams of disk enclosures are for your reference only. You can access Huawei Storage Product Networking Assistant (https://support.huawei.com/onlinetoolsweb/sna/#/home) for more networking diagrams.

  • Connecting a 2 U controller enclosure to three 2 U SAS disk enclosures (applicable to Dorado 3000 V6):
    Figure 2-10 Example of connecting a 2 U controller enclosure to three 2 U SAS disk enclosures

  • Connecting a 2 U controller enclosure to three 2 U SAS disk enclosures (applicable to Dorado 5000/6000 V6):
    Figure 2-11 Example of connecting a 2 U controller enclosure to three 2 U SAS disk enclosures

  • Connecting a 2 U controller enclosure to three smart disk enclosures (applicable to Dorado 5000/6000 V6):
    Figure 2-12 Example of connecting a 2 U controller enclosure to three smart disk enclosures

    After disk enclosures are connected and powered on, do not change their positions in the storage system. Otherwise, IDs of disk enclosures may be displayed incorrectly, service performance may deteriorate, or some storage resources may be unavailable.

Rules for Naming Loop IDs and Disk Enclosure IDs

The following describes how to name loop IDs and disk enclosure IDs.

OceanStor Dorado 3000 V6

Loop ID

Each onboard port or port on an expansion module corresponds to a fixed loop ID, as shown in orange and blue marks in Figure 2-13.

SAS disk enclosures can be connected to onboard interface modules or 12 Gbit/s SAS expansion modules in slots IOM 2.

Figure 2-13 12 Gbit/s SAS expansion modules

Disk Enclosure ID

DAEXXX indicates the disk enclosure ID. The first X indicates the controller enclosure ID, the second X indicates the hexadecimal loop ID, and the third X indicates the cascading level of the disk enclosure in a loop.

  • For loops 1 to 6, the second X can be 1, 2, ..., or 6, and the third X can be 0 or 1 (0 for a level-1 disk enclosure, 1 for a level-2 disk enclosure).
  • For example, the ID of the first disk enclosure in loop 1 of controller enclosure 0 is DAE010.

Table 2-5 describes the rules for naming disk enclosure IDs in each loop.

Table 2-5 Disk enclosure IDs in each loop

Expansion Module Location

Port ID

Loop ID

Disk Enclosure ID

Onboard expansion module

P0

1

DAE010, DAE011

P1

2

DAE020, DAE021

IOM 2

P0

3

DAE030, DAE031

P1

4

DAE040, DAE041

P2

5

DAE050, DAE051

P3

6

DAE060, DAE061

OceanStor Dorado 5000 V6 and 6000 V6

Loop ID

Each onboard port or port on an expansion module corresponds to a fixed loop ID, as shown in orange and blue marks in Figure 2-14 and Figure 2-15.

  • SAS disk enclosures can be connected to onboard interface modules or 12 Gbit/s SAS expansion modules in slots IOM 3, 4, and 5.
  • Smart disk enclosures can be connected to 100 Gbit/s RDMA expansion modules in slots IOM 0, 1, 2, 3, 4, and 5.
Figure 2-14 12 Gbit/s SAS expansion modules

Figure 2-15 100 Gbit/s RDMA expansion modules

Disk Enclosure ID

DAEXXX indicates the disk enclosure ID. The first X indicates the controller enclosure ID, the second X indicates the hexadecimal loop ID, and the third X indicates the cascading level of the disk enclosure in a loop.

  • For loops 1 to 15, the second X can be 1, 2, ..., 8, 9, A, B, C, D, E, or F, and the third X can be 0 or 1 (0 for a level-1 disk enclosure, 1 for a level-2 disk enclosure).
  • For loops 16 to 20, the second X can be 0, 1, 2, 3, or 4, and the third X can be 8 or 9 (8 for a level-1 disk enclosure, 9 for a level-2 disk enclosure).
  • For example, the ID of the level-1 disk enclosure in loop 15 of controller enclosure 0 is DAE0F0, and the ID of the level-1 disk enclosure in loop 20 of controller enclosure 0 is DAE048.

Table 2-6 describes the rules for naming disk enclosure IDs in each loop.

Table 2-6 Disk enclosure IDs in each loop

Expansion Module Location

Port ID

Loop ID

Disk Enclosure ID

Onboard expansion module

P0

1

DAE010, DAE011

P1

2

DAE020, DAE021

IOM 5

P0

3

DAE030, DAE031

P1

4

DAE040, DAE041

P2

5

DAE050, DAE051

P3

6

DAE060, DAE061

IOM 4

P0

7

DAE070, DAE071

P1

8

DAE080, DAE081

P2

9

DAE090, DAE091

P3

10

DAE0A0, DAE0A1

IOM 3

P0

11

DAE0B0, DAE0B1

P1

12

DAE0C0, DAE0C1

P2

13

DAE0D0, DAE0D1

P3

14

DAE0E0, DAE0E1

IOM 2

P0

15

DAE0F0, DAE0F1

P1

16

DAE008, DAE009

IOM 1

P0

17

DAE018, DAE019

P1

18

DAE028, DAE029

IOM 0

P0

19

DAE038, DAE039

P1

20

DAE048, DAE049
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Updated: 2020-12-18

Document ID: EDOC1100112620

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