Guidelines for adding object capacity

You can expand the object storage capacity of your StorageGRID system by adding storage volumes to existing Storage Nodes or by adding new Storage Nodes to existing sites. You must add storage capacity in a way that meets the requirements of your ILM policy.

Guidelines for adding storage volumes

Before adding storage volumes to existing Storage Nodes, review the following guidelines and limitations:
  • You must examine your current ILM rules to determine where and when to add storage volumes to increase the storage available for replicated or erasure-coded objects.
  • You cannot increase the metadata capacity of your system by adding storage volumes because object metadata is stored only on volume 0.
  • You can add expansion shelves to SG6060 storage appliances, but you cannot add expansion shelves to any other storage appliance.
  • Each non-appliance Storage Node can support a maximum of 16 storage volumes. If you need to add capacity beyond that, you must add new Storage Nodes.
  • You cannot increase the size of an existing storage volume.
  • You cannot add storage volumes to a Storage Node at the same time you are performing a system upgrade, recovery operation, or another expansion.
After you have decided to add storage volumes and have determined which Storage Nodes you must expand to satisfy your ILM policy, follow the instructions for your type of Storage Node:

Guidelines for adding Storage Nodes

Before adding Storage Nodes to existing sites, review the following guidelines and limitations: