Documentation #55938: Update "hardware-recommendations.rst" -- June 2022 - Ceph - Ceph

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Documentation #55938

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Update "hardware-recommendations.rst" -- June 2022

Added by Zac Dover almost 2 years ago. Updated almost 2 years ago.

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Description

This Tracker Issue will collect the PRs that update hardware-recommendations.rst in mid-2022.

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#1

Updated by Zac Dover almost 2 years ago

https://github.com/ceph/ceph/pull/46449 - Quincy backport of "memory" section

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#2

Updated by Zac Dover almost 2 years ago

https://github.com/ceph/ceph/pull/46451 - Octopus backport of "memory" section

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#3

Updated by Zac Dover almost 2 years ago

https://github.com/ceph/ceph/pull/47109

Anthony D'Atri's comments in this PR provide several good avenues for the expansion of and clarification of the hardware recommendations documentation. Among his comments are these ideas:

- MDS (metadata server) nodes benefit more from fast clock rates than from beefy (at the time of this writing, "quad-core or better") CPUs. The example that Anthony gives is "a 4-core 3.5 GHz model [is] preferable to an 8-core 2.5 GHz SKU".

- We might mention EC parity (erasure coding parity) and hash computation.

- More explanation of "isolation" as a term in the context of and as it applies to OSDs might not be unwelcome.

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#4

Updated by Zac Dover almost 2 years ago

https://github.com/ceph/ceph/pull/47109 - merged to main
commit hash:
29c44a3bd6919f7fc23083d75d22e84c8b51e1c1

https://github.com/ceph/ceph/pull/47122 - Pacific backport
https://github.com/ceph/ceph/pull/47123 - Quincy backport

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