After creating a snapshot for the source LUN, modify the existing dab in the source LUN.
In this scenario, where is changed data written?

Which of the following storage nodes will configure an SSD as a read cache by default? (Multiple choice)

OceanStor V3 series storage systems support COW file systems. When new dab is written or data is changed, the original data will not be overwritten but the new data and data change id written into new allocated disk space. ROW file systems feature solid reliability and flexible scalability and become mainstream file systems such as ZFS, Btrfs, and nilfs.

Every OceanStor V3 model is fitted with at least 6 coffer disks.

When accessing the Oceanstor SystemRepoter report tool, you need to enter https://IP:8088 in the browser address: where IP is the business management IP of the Oceanstor 9001 system.