Re: object classes (was: The file removal performance is very low by mdtest)


Hennecke, Michael
 

Hi,

 

Without data protection, SX (striping across all storage targets) and S1 (using only a single storage target) are your two main options. With replication or erasure coding, there are more object classes that could be used.  The object page on github has some background:

 

https://github.com/daos-stack/daos/tree/release/2.0/src/object

 

Note that this page isn’t 100% current with the latest object layout changes in 2.0, but it’s a good starting point. We have a gap in our user documentation around this. I’m working to create some more user-level documentation around this topic right now.

 

Best,

Michael

 

From: daos@daos.groups.io <daos@daos.groups.io> On Behalf Of Groot
Sent: Thursday, 14 April 2022 09:42
To: daos@daos.groups.io
Subject: Re: [daos] The file removal performance is very low by mdtest

 

Thanks, I want to know where I can get the description of --dfs.oclass and --dfs.dir_oclassDo they contain other parameters except S1 and SX?

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