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TeraBytes Written (TBW) is too high #9986

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nikurt opened this issue Oct 23, 2023 · 0 comments
Open

TeraBytes Written (TBW) is too high #9986

nikurt opened this issue Oct 23, 2023 · 0 comments
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@nikurt
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nikurt commented Oct 23, 2023

Reported by UrsaMajor on Discord: https://discord.com/channels/490367152054992913/611591221474885632/1165023060391362570

I ask because I saw Near writing TB's of data p. day and this can hit quite fast the guaranteed TBW of smaller disks.
When I check the health condition of my disks, for example with
sudo smartctl -A /dev/nvme0
I see among other data this:
Data Units Written: 915,043,702 [468 TB]
On this server it's not a problem, because the disks are quite large (I recently migrated the node to this server).
But, on the previous server the disks had a TBW of 600TB and I reached 400 TB already after running the near-node for 4-5 months.

We currently don't monitor this metric. Maybe we should.
In-memory trie will probably reduce TBW significantly.

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