What happens when an Isilon node fails?

Posted on by Emilia Duggan

What happens when an Isilon node fails?

After you logically remove a node, the node automatically reformats its own drives, and resets itself to the factory default settings. The reset occurs only after OneFS has confirmed that all data has been reprotected.

How do I restart Isilon cluster?

Procedure

  1. Navigate to Cluster Management > Hardware Configuration > Shutdown & Reboot Controls .
  2. In the Shut Down or Reboot This Cluster area, specify an action: Shut down. Shuts down the cluster. Reboot. Stops then restarts the cluster.
  3. Click Submit.

What is an Isilon cluster?

An Isilon cluster consists of three or more hardware nodes, up to 144. Each node runs the Isilon OneFS operating system, the distributed file-system software that unites the nodes into a cluster. A cluster’s storage capacity ranges from a minimum of 18 TB to a maximum of 15.5 PB. Cluster administration.

How do I run a health check on Isilon?

You can manually check the health of the cluster’s hardware components to confirm that the Isilon cluster can support an upgrade….Procedure

  1. Click Dashboard > Cluster Overview > Cluster Status.
  2. In the Status area, click the ID of a node.
  3. In the Chassis and drive status area, click Platform .

How do I check Isilon logs?

View the event log

  1. Establish an SSH connection to any node in the EMC Isilon cluster.
  2. View the /var/log/isi_celog_events.log file. The log file lists all event activity. Each event row contains one of the following event labels: Event label. Description. COALESCED: FIRST EVENT.

What is the command that checks the Isilon cluster health status?

Overview of HealthCheck The isi healthcheck command enables you to evaluate the status of specific software and hardware components of the cluster and the cluster’s environment.

How do you power cycle the Isilon node?

These steps are to be performed on the day that you shut down your Isilon cluster….In OneFS 7.0 and later:

  1. Click Cluster Management > Hardware Configuration > Shutdown & Reboot Controls.
  2. Click Shut down, and then click Submit.
  3. Click Yes to confirm. A page appears stating that the cluster is now shutting down.

How do you reset a single Isilon node?

Procedure

  1. Click Cluster Management > Hardware Configuration > Nodes.
  2. In the Nodes area, select one or more nodes by clicking the corresponding check boxes and specify an action: Shut down. Shuts down the node. Reboot. Stops then restarts the node.

A single Isilon cluster consists of multiple nodes, which are rack-mountable enterprise appliances containing: memory, CPU, networking, Ethernet or low-latency Infiniband interconnects, disk controllers and storage media. As such, each node in the distributed cluster has compute as well as storage or capacity capabilities.

Can I assign the Isilon cluster file system to a single SVR?

Although it is possible to assign the full Isilon cluster file system to a single Qognify SVR, the Dell EMC best practice is to use SmartQuotas™ to segment the single Isilon file system so that each SVR has a logical subset view of storage. Lets you define a usage limit and configure notifications without subjecting users to strict enforcement.

How do I check if the isiloncluster can support an upgrade?

You can manually check the health of the cluster’s hardware components to confirm that the Isiloncluster can support an upgrade. About this task Run the following commands to evaluate the health of the devices in the cluster and the status of job engine jobs.

What happens if I accidentally shut down the cluster?

CAUTION! Improperly shutting down the cluster may lead to data availability and integrity issues. Nodes that are improperly shut down in the cluster should not be without system power for longer than the life of the NVRAM battery, which is approximately 3 to 5 days, depending on the type of node.