Adding Backend Storage

A core filer is the entity that links a backend storage system (for example, a NAS hardware appliance or a cloud object store) to the Avere cluster.

Use the Avere Control Panel to add a core filer to your system.

(Note that a FlashCloud license is required to use cloud storage as a core filer in your Avere cluster. You cannot define a cloud core filer until after the license has been installed.)

More complete information is included in the Cluster Configuration Guide:

After adding a core filer, you can view or modify its properties by using the Core Filer Details settings page.

Adding a Core Filer

Define a core filer by clicking the Create button on the Core Filer > Manage Core Filers settings page.

Clicking the create button above the list of core filers on the Manage Core Filers page

The Add New Core Filer wizard walks you through the process of creating a core filer that links to your backend storage. The Cluster Configuration Guide has very detailed descriptions of the process, which is different for NFS/NAS storage and for cloud storage.

License-Based Restrictions

The options might be restricted based on what licenses you have installed. The screenshot below is from a cluster that does not have a FlashCloud license installed.

First page of the hardware NAS new core filer wizard. The option for "cloud core filer" is disabled and shows an error message about the missing license.

Cache Policy Choices

On the second page of the wizard you must select a cache policy for the new core filer. These are described in detail in the Cluster Configuration Guide.

Policies that require additional licenses cannot be selected.

Second page of a hardware NAS new core filer wizard; the Cache Policy drop-down menu is open, showing several disabled options in addition to three cache policy options (bypass, read caching, and read/write caching).

Adding the Core Filer

After filling in all of the required settings in the Add New Core Filer wizard, click the Add Filer button to submit the change.

(For a cloud core filer, there is an additional page for specifying the storage system and encryption details - read Adding a New Core Filer - Cloud Core Filer in the Cluster Configuration Guide for help with this configuration.)

After a few moments, the storage system appears on the Dashboard’s core filers list and can be accessed through core filer settings pages.

core filer "Flurry-NAS" in the Manage Core Filers settings page, with the filer details view expanded

Note that this screenshot shows a core filer with no vserver - its setup is not complete. You must associate the core filer with a vserver to allow clients to access the storage system. Read Configuring VServers and Global Namespace for help with the next step.

About Local Directories

The Local Directories feature in Avere OS provides enhanced caching services, which can impact the cluster’s throughput in some scenarios. Avere Systems recommends that customers consult their Avere representatives before enabling this feature.

Some caching scenarios require the Local Directories feature, so some cache policies are unavailable until after you have obtained and installed a Local Directories license file. There is no additional charge for the license. Contact Avere Global Services if you have questions.

Cloud Credentials

If you add a cloud object store as a core filer, you must specify the cloud service and credentials for accessing the storage, among other parameters. You can add a cloud storage credential as part of creating the core filer.

Cloud core filer information in the New Core Filer wizard

If you later want to add, change or remove a credential, use the Cluster > Cloud Credentials settings page.

For more details, read the Cluster > Cloud Credentials chapter in the Cluster Configuration Guide, and the Cloud Service and Protocol section of the chapter that describes the cloud core filer wizard.