Monthly Archives: January 2021

XD刷机中执行reclaimdisks.sh的作用

Posted on January 27, 2021 by Alfred Zhao

之前刷机提到在使用OEDA进行一键部署前，需先在所有DB节点上运行reclaimdisks.sh，也提到观察会释放pvs/vgs/lvs相对应的剩余空间。 Continue reading →

Posted in Oracle一体机 | Tagged reclaimdisk.sh | Comments Off

Exadata刷机快速参考

Posted on January 27, 2021 by Alfred Zhao

本文以Exadata X8 HC 1/4 rack为例，介绍整个Exadata刷机的步骤。 Continue reading →

Posted in Oracle一体机 | Tagged Exadata, X8 | Comments Off

并行，想说爱你不容易

Posted on January 8, 2021 by Alfred Zhao

在计算机的世界里，如果能用好并行这件利器，可以大幅提升性能；如果没用好，轻则达不到预期性能，重则会连带影响到整个系统的可用性。 Continue reading →

Posted in Oracle性能优化 | Tagged parallel, parallel_force_local | Comments Off