From 5c15fb97b4d507c2f60428b3dba376bdbfadf116 Mon Sep 17 00:00:00 2001 From: Thomas Lamprecht Date: Mon, 17 Jun 2024 17:06:55 +0200 Subject: [PATCH] docs: drop blanket statement recommending against remote storage This is basically semantic revert of e5c0d80c ("docs: add note for not using remote storages") that, while well intended, has a few problems, e.g.: - This is the minimal/recommended requirements section, which should list the rough basic specs a setup must/should have. Listing everything that is not best to do would bloat this list significantly and it's just the wrong place for it, i.e., it isn't a recommended against list. - while it's true that a remote storage will basically always have _some_ overhead over using the same HW with a (modern) local storage (file) system, that does **not** mean that the remote storage has insufficient performance characteristics. We know of lots of fast Ceph setups, even release benchmarks for them, or storages like BlockBridge, that provide high performance while being remote. So avoid this X-Y-problem style argumentation and focus on what is actually important, even though I naturally get that there are some users that use slow NFS attached storages, but breaking style here won't cure them and I'm sure that they are capable of setting up such a slow local storage that it won't make a real difference compared to the NFS one. Signed-off-by: Thomas Lamprecht --- docs/system-requirements.rst | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/docs/system-requirements.rst b/docs/system-requirements.rst index 17756b7b..023003c3 100644 --- a/docs/system-requirements.rst +++ b/docs/system-requirements.rst @@ -38,12 +38,10 @@ Recommended Server System Requirements * Backup storage: - * Use only SSDs, for best results + * Prefer fast storage that delivers high IOPS for random IO workloads; use + only enterprise SSDs for best results. * If HDDs are used: Using a metadata cache is highly recommended, for example, add a ZFS :ref:`special device mirror `. - * While it's technically possible to use remote storages such as NFS or SMB, - the additional latency and overhead drastically reduces performance and it's - not recommended to use such a setup. * Redundant Multi-GBit/s network interface cards (NICs)