The reason why the size of a chunk for OceanStor 9000 is 4 GB

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If the size of a file is larger than 4 GB, the file will be split for the first time. If the size of a file is smaller than 4 GB, the file will not be split at the chunk level. Data slices and storage are achieved based on the strip depth.

Other related questions:
Selecting strip sizes for OceanStor 9000
To improve disk utilization, you are advised to set a strip size value for a directory based on the average file size in the directory. - If the average file size is equal to or smaller than 64 KB, set the strip size to 16 KB. - If the average file size is larger than 64 KB and equal to or smaller than 256 KB, set the strip size to 32 KB. - If the average file size is larger than 256 KB and equal to or smaller than 2048 KB, set the strip size to 128 KB. - If the average file size is larger than 2048 KB and equal to or smaller than 4096 KB, set the strip size to 256 KB. - If the average file size is larger than 4096 KB, set the strip size to 512 KB.

Memory specifications of OceanStor 9000
Different OceanStor 9000 nodes memory size varies between types. For detailed specifications, see the following documentation: - OceanStor 9000 V100R001C01 Product Documentation - OceanStor 9000 V100R001C10 Product Documentation - OceanStor 9000 V100R001C20 Product Documentation - OceanStor 9000 V100R001C30 Product Documentation

OceanStor 9000 strip sizes and whether they are different
The value of the strip size parameter affects performance and disk utilization. OceanStor 9000 V100R001C01 only supports 16 KB, 32 KB, and 128 KB. The difference among the three is the size of each data slice. Larger strip size value will ensure a higher performance. The recommended strip sizes are as follows: - When the average file size is smaller than 64 KB, set the strip size to 16 KB. - When the average file size is larger than 64 KB but smaller than 512 KB, set the strip size to 32 KB. - When the average file size is larger than 512 KB, set the strip size to 128 KB.

Strip size supported by OceanStor 9000 V100R001C01
The strip size of OceanStor 9000 V100R001C01 can be set to 128 KB, 32 KB, or 16 KB based on file directories.

Maximum size of a single file in OceanStor 9000 V100R001C01
Maximum size of a single file in OceanStor 9000 V100R001C01: 240 TB

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