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Status Future consideration
Workspace Storage Protect Family
Categories Spectrum Protect (Server)
Created by Guest
Created on Aug 3, 2021

RELATED IDEAS

Replication of Larger file systmes from COS

Hi Mitul,



I have the answer now for the difference between client restore from cloud vs replication from cloud



1: the normal restore from the cloud was making use of the chunk cache and

async read. Those tools can in some cases make the restore from cloud very efficient, The "cache : yes" from your last resource, shows the chunks are in cache, as a result, the restore doesn't need to go to the cloud at all (this is why I don't see the cloud read from cloud for the restore thread ).

However, not all the chunks are in cloud, if you are restoring chunks are not in cloud ( cache: NO), the restore will have to go to the cloud, and the performance would be a lot slower than what we saw in this example.



2: The replication path does not use that chunk cache, or async read, so it has to read every chunk from the cloud every time, so it will consistently have that slower performance.



If you are not satisfied with our current replication design. you can certainly open a RFE for this subject:



Link to RFE

https://www.ibm.com/developerworks/rfe/?BRAND_ID=90

Choose: brand/ product: Servers and system software

Prodct: spectrum protect family



Regard,

Hellen Jin




Show less

Idea priority Urgent
  • Guest
    Reply
    |     Aug 5, 2021

    This request may not be delivered within the release currently under development, but the theme is aligned with the current multi-year strategy. IBM may consider and evaluate any RFE Community feedback for this request through activities such as voting. IBM will update this request in the future.

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