Before we continue, do you know what a disk storage array is? A disk array is a disk storage system which contains multiple disk drives. The disk array has cache memory and advanced functionality, similar to RAID and virtualization.
Here are some examples of alerts and errors you will see in the GUI device’s web interface:
The solution to the problem will always depend on the underlying cause(s). In no particular order, listed are the potential causes for a full storage device:
The first thing you will notice is a “Backup Skipped” error message, like this:
That is the first sign your backup got skipped. What the message is telling you is your primary storage size has reached maximum capacity on your local Datto SIRIS. To get your local backups process restarted and back on schedule, you have to free up storage space. There’s no way around it.
The backup getting skipped may be caused by numerous unseen conditions:
According to Datto’s Knowledge Base under their Unified Continuity Backups page, they have an easy four-step reclaim space process. Their instructions from that page are below:
1. Stop all backups on the Datto device.
2. Datto recommends local retention of 5 days of intradailies, one week of dailies, and two months of weeklies stored on the SIRIS unit. Tighten up retention settings to remove any points no longer needed.
3. Manually remove recovery points that are already offsite or unnecessary points no longer needed. The most space will get cleared by starting from the oldest recovery points.
Due to the inverse chain, the size displayed by the Manage Recovery Points listing does not necessarily represent the space that will get freed by deleting it. 
4. If the device still cannot take a backup, contact Datto Technical Support. 
To prevent your Datto storage array; getting low disk space and your backups getting skipped, while putting your compliance at risk, have your device checked out and examined to be appropriately sized and frees up used storage.
Did you find this article informative? If you liked this one, check out these other articles we think you’ll find interesting: Considering Outsourcing IT Services (Top Questions Answered) and How Do I Find the Right IT Managed Services Provider? Or VMware Virtualization Solutions For Wilmington Companies (Information/Research)
Published By: Scott Clarke on September 29th, 2018