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    S3 Chunk Size

    Scheduled Pinned Locked Moved Backup
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    • rizaemet 0R Offline
      rizaemet 0
      last edited by

      Hello,
      I added a S3-compatible cloud storage as a remote backup target to XenOrchestra. There are no problems, everything is working as expected and the performance is good. I can create backups and restore them.
      But, the service provider's documentation states, "You must set the minimum Chunk Size for backups to 4MB". How can I find out what this value is for my system? And if I need to change it, how can I do so?

      florentF 1 Reply Last reply Reply Quote 0
      • florentF Offline
        florent Vates 🪐 XO Team @rizaemet 0
        last edited by

        @rizaemet-0 this is not configurable .
        before qcow2 the S3 blocks were aligned with the VHD blocks, then compressed, so changing it would have been a lot of work
        now with qcow2 support almost reaching stable, we have some of the tools available to resize the block size on the file ( since qcow2 are based on 64KB blocks) , so it's not impossible, but it's still quite complex to do reliably

        Could you name the provider ?

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