In these cases, it is necessary to manually check if all data has been rebalanced out from the disk before proceeding with disk replacement.
In Oracle Exadata System Software releases earlier than 11.2.3.2.0, the amber Fault-Service Required LED was turned on for a hard disk with predictive failure, but not the blue LED. Starting in Oracle Exadata System Software release 11.2.3.2.0, if there is a disk failure, then Oracle Exadata System Software sends an alert stating that the disk can be replaced, and, after all data has been rebalanced out from that disk, turns on the blue OK to Remove LED for the hard disk with predictive failure. All other disks in the cell are data disks. In systems prior to Oracle Exadata Database Machine X7, the non-system area of the system disks, referred to as data partitions, is used for normal data storage. In Oracle Exadata Database Machine X7 and later systems, all the hard disks in the cell are data disks. In all other systems, the first two disks of Oracle Exadata Storage Server are system disks and the portions on these system disks are referred to as the system area. In Oracle Exadata Database Machine X7 and later systems, two internal M.2 devices contain the system area. The new disk group with database features such as Oracle Partitioning, Oracle Automaticĭata Optimization, and Oracle Advanced Compression.Įvery Oracle Exadata Storage Server in Oracle Exadata Rack has a system area, which is where the Oracle Exadata System Software system software resides. XT storage servers provide fully integrated storage for Oracle Database. However, you can use a different name as required. Your rack, create new disk groups to use the storage. Only one type of storage server (HC, EF, or XT). Servers follow the same placement patterns as High Capacity (HC) and Extreme Flash (EF)Īn Oracle ASM disk group should use storage provided by Implement high redundancy, you must have a minimum of 3 XT storage servers. After the initial 2 servers, you can add XT storage servers as needed. Or newer, including Eighth Rack configurations. You can add XT storage servers to Oracle Exadata Rack X4 You can use the same security model andĮncryption used for your other Exadata storage servers. SQL, and retaining the same operational model. Servers add storage capacity while remaining transparent to applications, transparent to The other servers in your Oracle Exadata Rack. XT storage servers use the same RDMA Network Fabric as Hybrid Columnar Compression is included without requiring Oracle Exadata System Software licenses. Also, Oracle Exadata System Software licensing is optional, with some software features disabled Lower cost, flash devices are not included. Rarely accessed data that must be kept online.Įach XT storage server includes twelve high-capacity disk drives. Help you extend the operational and management benefits of Exadata Database Machine to Oracle Exadata Extended (XT) Storage Servers The Exadata Storage Server models have different external layouts and physical appearance. The LEDs on the Oracle Exadata Rack components help you identify the component that needs servicing. Sun Flash Accelerator F20 PCIe cards are used in Oracle Exadata Database Machine X3 models.
You can resize grid disks and Oracle ASM disk groups to shrink one with excess free space and increase the size of another that is near capacity. It is faster than the Flash Cache, but has smaller capacity. Managing the RAM Cache on the Storage ServersĬell RAM Cache is a cache in front of the Flash Cache and is an extension of the database cache.Oracle Exadata Database Machine X7 and later systems come with two internal M.2 devices that contain the system area. Maintaining the M.2 Disks of Oracle Exadata Storage Server.If a PMEM device fails, the data is recovered automatically. Maintaining PMEM Devices on Oracle Exadata Storage Servers.Maintaining Flash Disks on Oracle Exadata Storage Servers.Maintaining the Hard Disks of Oracle Exadata 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. Using Exadata Extended (XT) Storage Servers.
This section describes how to perform maintenance on Oracle Exadata Storage Servers. Maintaining Oracle Exadata Storage Servers.