How to perform a graceful shutdown and power up of one HA pair in a 4+ node cluster

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Category:: ontap-9

Specialty:: hw

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Applies to

ONTAP 9
4-node or larger cluster
AFF Systems
FAS Systems
Excludes MetroCluster configurations

Description

This procedure is for halting one HA pair in a 4-node or larger cluster, only.

WARNING

This procedure outlines the temporary shutdown of an HA pair with the expectation the HA pair is powered back on and returned to health within the cluster. If the nodes are to be permanently removed from the cluster, then follow the Removing nodes from the cluster procedure, instead.

Several events might require a graceful shutdown of ONTAP equipment such as:

Scheduled site power outage.
Data center-wide maintenance.
Physical system move.
Preparation for future re-purposing of equipment.

Requirements

Local admin credentials for ONTAP.
Ensure SP/BMC for each controller is accessible.
Stop all clients/hosts and external backup jobs from accessing data on the NetApp system - refer to How to View Active Client Connections by Protocol in ONTAP.
Personnel onsite to perform physical equipment tasks following preparation for onsite maintenance.
If using a MetroCluster:
- Do not use this procedure, follow either Powering off an entire MetroCluster FC configuration or Powering off an entire MetroCluster IP configuration instead.
If using SSDs:
- Refer to SU490: [Impact: Critical] SSD Best Practices: Avoid risk of drive failure and data loss if powered off for more than two months.
If using NetApp Onboard Key Management (OKM) and configured for CC-mode:
- The cluster-wide passphrase available and tested.
If using NetApp StorageGRID or ONTAP S3 used as FabricPool cloud tier:
- Refer to the Gracefully shutdown and power up your storage system Resolution Guide for the graceful shutdown procedure to perform for those systems after performing the procedure in this article.
If using FlexArray array LUNs:
- Follow the specific vendor storage array documentation for the shutdown procedure to perform for those systems after performing the procedure in this article.

Prior to shutdown
(Best practices)

Perform additional system health checks.
Upgrade ONTAP to a recommended release.
Resolve any Active IQ Wellness Alerts and Risks.
Run Active IQ Config Advisor.
Make a note of any faults presently on the system - amber LEDs on controllers, shelves, IOMs, disks, PSUs, etc.

Identifying hardware components

The ONTAP system is comprised of one or more of the following components. Use the following links for helpful details and images to assist onsite personnel with locating and identifying the equipment.

Controllers:
Disk Shelves
Switches:
- Cluster interconnect
- Cluster management
- Storage
- FC

Applies to

Description

Requirements

Prior to shutdown (Best practices)

Identifying hardware components

Prior to shutdown
(Best practices)