Definition of OceanStor 9000 V100R001C01 protection levels


OceanStor 9000 V100R001C01 supports the erasure coding technology and provides different protection levels, such as N+1, N+2, N+3, N+4, N+2:1, and N+3:1. For details about the definition of protection levels, see OceanStor 9000 V100R001C01 Administrator Guide.

Other related questions:
OceanStor 9000 V100R001C01 protection level objects
The protection level of OceanStor 9000 V100R001C01 can be set for any empty directory in WushanFS. By default, protection levels of all directories are the same as data redundancy ratio (N+2) set in the configuration file during software installation. After a protection level is set for a directory, the protection level applies to both the directory and its subdirectories. If a directory has multiple parents with different protection levels, the protection level of the directory is subject to that of its nearest parent.

OceanStor 9000 V100R001C01 data balancing policy levels
OceanStor 9000 data balancing policy levels are based on the impact of data balancing on normal services. These priority levels comprise the following: High: Data balancing causes system performance to deteriorate by no more than 50%. Medium: Data balancing causes system performance to deteriorate by no more than 30%. Low: Data balancing causes system performance to deteriorate by no more than 10% (by default). When a data recovery task and a data balancing task are both initiated, the former is performed prior to the latter.

OceanStor 9000 V100R001C01
For details about OceanStor 9000 V100R001C01, see OceanStor 9000 V100R001C01 Product Documentation.

OceanStor 9000 site
Currently, OceanStor 9000 is mainly used in M&E, HPC, and finance. For example, OceanStor 9000 is used as big data storage by a TV station, a meteorology bureau, and a bank. For a specific version of OceanStor 9000, site details involve high-level permission. To obtain the details, contact related customer service managers.

OceanStor 9000 InfoTier feature definition
InfoTier, which is also named dynamic storage tiering (DST), can store files on storage devices with different performance levels according to the file properties, and can migrate files between devices. In this way, InfoTier fits users' requirements on the files processing speed and storage capacity, and ensures optimized space utilization, enhanced access performance, and reduced total deployment cost.

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