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Storage Management (ASM ACFS DNFS ODM) (MOSC)

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Using AWS EBS to provide ASM disks

in Storage Management (ASM ACFS DNFS ODM) (MOSC) 1 commentAnswered

HI all,

I'm currently setting a database using EC2 instance and GP3 EBS disks to migrate a database from Azure. All disks on azure side are using 4k blocksize.

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/volume_constraints.html as per link, EBS disks presents to the OS disks with 512b physical blocks, but in the next paragraph, they say disks ca be formatted to a different block size. Would it be a case of the OS uses for example a EXT4 with 4K block size which is mapped to 8 physical blocks

https://stackoverflow.com/questions/68792415/what-does-aws-ebs-block-mean

Then finally my question. Is possible to have 4k blocksize using EBS for ASM disks? I mean, ASM relies on disk label so I can't create a DISKGROUP using 4K blocksize. I'm guessing here it's the case shown in this slide

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