[lustre-discuss] Why certain commands should not be used on Lustre file system

[Prakrati.Agrawal at shell.com]

Hi,

I read on Lustre best practices that ls -U should be used instead of ls -l . I understand that ls -l makes MDS contact all OSS to get all information about all files and hence loads it. But, what does ls -U do to avoid it?

Also, it is said that rm-rf * should not be used. Please can someone explain the reason for that.

It is also said that instead lfs find  <directory path> --type f -print0 | xargs -0 rm -f should be used. Please explain the reason for this also.

Thanks and Regards,
Prakrati

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