Common procedures for node maintenance: Overview
Use these instructions to maintain your StorageGRID system.
About these instructions
These instructions describe procedures common to all nodes such as how to apply a software hotfix, recover grid nodes, recover a failed site, decommission grid nodes or an entire site, perform network maintenance, perform host-level and middleware maintenance procedures, and perform grid node procedures.
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In these instructions, “Linux” refers to a Red Hat® Enterprise Linux®, Ubuntu®, or Debian® deployment. Use the NetApp Interoperability Matrix Tool (IMT) to get a list of supported versions. | 
Before you begin
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You have a broad understanding of the StorageGRID system.
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You have reviewed your StorageGRID system's topology and you understand the grid configuration.
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You understand that you must follow all instructions exactly and heed all warnings.
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You understand that maintenance procedures not described aren't supported or require a services engagement.
 
Maintenance procedures for appliances
Specific maintenance procedures for each type of StorageGRID appliance are in the appliance maintenance sections: