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FAQ- How many ways of the capacity expansion for the CloudStor cloud storage

Publication Date:  2012-11-05 Views:  96 Downloads:  0
Issue Description
Product and version: adapting to the CloudStor cloud storage V100R001C02.
How many ways of the capacity expansion for the CloudStor cloud storage?
Alarm Information
None
Handling Process
The CloudStor cloud storage has a well ability of online capacity expansion. In the condition that don’t discontinue the service, we can expand the capacity of the storage on a large scale online, which from TB to 100PB. There are three ways of the capacity expansion, as the following displayed:
1. Expand the storage capacity via the unit of hard disk.
The CloudStor cloud storage supports to expand the storage capacity via the unit of hard disk. When the storage capacity is insufficient, we can add new hard disks into the node of the cloud storage. The system can identify these new plugged hard disks automatically, and expand the capacity of the cloud storage node, improve the available capacity of this node.
2. Expand the storage capacity via the unit of the cloud storage node.
The CloudStor cloud storage supports to expand the storage capacity via the unit of the cloud storage node. When the storage capacity is insufficient, we can add new cloud storage node to expand the capacity. The system can automatically identify the ID, and the hard disks’ capacity at these new cloud storage nodes, and according to the principle of load equilibrium, transfer more data and load to the new nodes.
3. Expand the storage capacity via the unit of the storage domain.
The CloudStor cloud storage supports to expand the storage capacity via the unit of the storage domain. The system supports the maximum of 128 storage domains, and each storage domain is composed with multiple MDSs and OSNs. When the storage capacity is insufficient, we can add one or more storage domains to expand the capacity. The system can automatically distribute ID for the new storage domain, and identifies its capacity, and then add it into the system.
Root Cause
None
Suggestions
None

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