Method of performing restriping

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OceanStor 9000 periodically scans for metadata and determines whether to restripe files that have been stored in the storage system based on file pool policies. If files need to be restriped, OceanStor 9000 sends a restriping task.

Other related questions:
Functions of restriping in OceanStor 9000
Through restriping, data is stored based on file pool policies.

Introduction to restriping in OceanStor 9000
Restriping means migrating data that has been stored to another tier or node pool.

How can I perform SMC2.0 upgrade?
The SMC2.0 upgrade scheme varies according to device deployment at each SMC2.0 site. For details about the operations, log in to http://support.huawei.com/enterprise, search for SMC2.0, and download the product upgrade guide.

Principles for OceanStor 9000 restriping to take effect
Principles for OceanStor 9000 restriping to take effect: - Before restriping, OceanStor 9000 determines whether the used space of the node pool in the target tier reaches the read-only watermark. Restriping is implemented only when the used space is lower than the read-only watermark. If the used spaces of all node pools in the target tier are higher than the read-only watermark, restriping is stopped. - A restriping operation must not interrupt user access. If a user modifies data that is being restriped, the restriping operation stops and rolls back. The data that has been restriped to the new node pool is deleted and restriping will be performed later. - You must start another restriping operation after the current one is complete. For example, during the process of a file being restriped from tier 1 to tier 2, if the file poll policy changes and the file needs to be restriped to tier3, you must wait until the restriping to tier 2 is complete and then start the restriping to tier 3.

How can I obtain the SMC2.0 cluster (hot standby) guide?
For details about the SMC2.0 cluster operation guide, see SMC2.0 Cluster Operation Guide.

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