If a Storage Status (SSTS) alarm appears, you can investigate the cause.
Before you begin
- You must be signed in to the Grid Manager using a supported browser.
- You must have specific access permissions. For details, see information about controlling system access with administration user accounts and groups.
About this task
Steps
- Select to display the alarms on the Storage Node.
- Select and review the Total Usable Space (STAS) attribute to determine the amount of storage available for the LDR service.
In this example, there is only 10 GB of usable storage remaining. For this StorageGRID Webscale deployment, 10 GB is the default value of the Storage Volume Read-Only Watermark (see ).
- Plot storage consumption over the last few hours. In this example, Total Usable Space dropped from roughly 55 GB at 14:00 to 10 GB at 18:00, which corresponds to the time at which the SSTS alarm was triggered.
- Verify the storage watermarks for the StorageGRID Webscale system. Select .
When the amount of usable disk space (Total Usable Space (STAS)) dropped below the Storage Volume Read-Only Watermark, Storage Status – Current (SSCR) changed to Read-only. As Storage State – Desired was set to Online, Storage Status (SSTS) changed to Insufficient Usable Space and a Notice alarm was triggered.
In most situations, an alarm for Total Usable Space (Percent) SAVP is also triggered; however, this depends on the relationship between the watermark setting in gigabytes (GB) and the alarm settings in percent. In this example, the Storage Volume Read-Only Watermark threshold (10 GB) was crossed before for the SAVP alarm threshold (10%).
