Good Day Zawro,
Yes, you can install the Commvault Storage Accelerator (SA) on a VSA proxy in a VMware environment, and it can write backup data directly to a cloud storage target such as Pure FlashBlade S3. Here’s how the setup works and what to keep in mind.
How It Works
HotAdd Reads:
The VSA proxy reads VM disk data using HotAdd transport mode, giving it efficient block-level access by mounting the VM’s disks locally.
Direct Write to FlashBlade S3:
When the Storage Accelerator role is enabled on the VSA proxy, it can send backup data straight to the S3 bucket (FlashBlade). This avoids routing the data through a separate MediaAgent and operates in “client-direct” mode.
Metadata Processing:
Even in client-direct mode, the VSA proxy still communicates with the MediaAgent/DDB for deduplication metadata and index operations. Only the backup data is written directly to cloud storage.
Key Points
Supported Platforms:
Storage Accelerator is supported on 64-bit Windows and Linux clients, including VSA proxies running on VMware virtual machines. (Not supported on 32-bit OS or Edge Endpoint offline backups.)
Benefits
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Improves performance by eliminating unnecessary data hops.
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Reduces MediaAgent load.
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When scaled across multiple proxies, can deliver very high aggregate throughput.
Fallback Behavior
If the VSA proxy cannot reach the S3 target, it automatically falls back to sending data through the MediaAgent.
Hope this helps with the information, Let me know if any additional questions!