3 Maintaining Oracle Exadata Storage Servers

Oracle Exadata Storage Servers contain disks and memory devices that might require maintenance.

Note:

• All procedures in this chapter are applicable to Oracle Exadata and Oracle Exadata Storage Expansion Rack.
• For ease of reading, the name "Oracle Exadata Rack" is used when information refers to both Oracle Exadata and Oracle Exadata Storage Expansion Rack.

• Maintaining Oracle Exadata Storage Servers
  This section describes how to perform maintenance on Oracle Exadata Storage Servers.
• Using Exadata Extended (XT) Storage Servers
  Oracle Exadata Extended (XT) Storage Server offers a lower cost storage option that can be used for infrequently accessed, older, or regulatory data.
• Maintaining the Hard Disks of Oracle Exadata Storage Servers
  
• Maintaining Flash Disks on Oracle Exadata Storage Servers
  
• Maintaining PMEM Devices on Oracle Exadata Storage Servers
  Persistent memory (PMEM) devices reside in Exadata X8M-2 and X9M-2 storage server models with High Capacity (HC) or Extreme Flash (EF) storage.
• Maintaining the M.2 Disks of Oracle Exadata Storage Server
  Oracle Exadata X7 and later systems come with two internal M.2 devices that contain the system area.
• Using the Oracle Exadata System Software Rescue Procedure
  In the rare event that the system disks fail simultaneously, you must use the Oracle Exadata Storage Server rescue procedure to recover the system.
• Changing Existing Elastic Configurations for Storage Cells
  You can modify the capacity of your Oracle Exadata using elastic configuration.
• Managing Disk Controller Batteries
  This section applies only to Exadata X4 and earlier systems, which use batteries to protect the disk controller cache. Newer disk controllers use a supercapacitor that does not require maintenance or replacement.
• Managing F20 PCIe Energy Storage Modules
  Sun Flash Accelerator F20 PCIe cards are used in Oracle Exadata X3 models.
• Exadata Storage Server LED Indicator Descriptions
  The indicator LEDs on Oracle Exadata storage servers help you to verify the system status and identify components that require servicing.
• Exadata Storage Server Images
  The Exadata Storage Server models have different external layouts and physical appearance.