ASM Intelligent Data Placement
Assigning Files to Disk Regions
rebanlance后生效
Use V$FILEMETRIC and V$FILEMETRIC_HISTORY
reply方式+awr结合,分析迁移后的库
SP
划逻辑卷的目的
操作系统LV可以做裸设备,而ADVM不行;只适合做第三方文件系统
Striping Inside the Volume:
Inside a volume, space is allocated based on:
Stripe column – the number of stripes (default 4)
Stripe width – the size of each stripe (default 128 KB)
Stripe column is 8, stripe width is 16 KB
First 200 KB of a file inside the file system is written as 13 chunks of 16 KB stripes across eight allocation units.
ACFS只支持RAC使用
snapshot是否自动--类似RMAN的全量和增量备份
裸设备基于LV,rac下,必须保证用第三方工具保证LV支持rac
来自 “ ITPUB博客 ” ,链接:https://blog.itpub.net/27573546/viewspace-758440/
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