Disk space and inode warnings typically indicate that your website’s file storage limits are being reached. Disk space refers to the total data that your hosting package allocates for your site, while inodes are related to the number of files and folders you have in your hosting account. If you’re finding that your organization’s WordPress website is starting to push these limits, there could be a few reasons why this is happening.

Are you hosting large volumes of media files, such as videos or images, on your website? This can easily take up a lot of disk space. Also backups, especially if full site backups are run and kept regularly on the server, tend to use up significant amounts of server resources. You might need to optimize how these files are stored or consider offloading them to cloud-based storage services like Amazon S3.

Another common reason could be email. If you’re hosting your organization’s email account alongside your WordPress site, unchecked mailbox growth could be consuming your resources. In such cases, it’s advisable to consider moving to a dedicated mail hosting provider.

Another factor could be a high number of plugins or themes installed that might contain needless files or media which add up quickly.

If inode usage warnings are appearing frequently, it indicates that your website has a high number of individual files. Each file (a webpage, image file, email etc.) counts as an inode. Reducing the number of files will help in reducing inode count.

To free up disk space and reduce inode usage:
– Regularly backup and delete old emails.
– Use media compression plugins to shrink image sizes.
– Delete old page post revisions from database periodically.
– Uninstall unnecessary plugins and delete unused themes.
– Move media content outsource such as videos to video sharing websites like Youtube or Vimeo which can host your videos thus saving hard drive space and server bandwidth.
– Consider using tools that can ‘clean up’ your WordPress database by removing unnecessary data that’s piling up and slowing down your site.

At last measure, you may need to contact your hosting provider about upgrading your existing hosting package if necessary – especially if it’s affecting website performance or if you haven’t changed hosting plans for some time while continually growing the site.

Above all else, don’t neglect WordPress maintenance on your website at scheduled intervals so you’re aware of what’s consuming disk space and you can manage resources appropriately before hitting any limits.

If after cleaning up your site you’re still receiving these warnings, it might be worth considering upgrading your hosting plan to provide more storage or finding a hosting provider who offers higher limits. Or, consider migrating your WordPress hosting to a new provider.