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150 points shaunpud | 1 comments | 29 Aug 25 02:39 UTC | HN request time: 0.337s | source

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fh973 ◴[29 Aug 25 05:37 UTC] No.45060597[source]▶

Swap on servers somewhat defeats the purpose of ECC memory: your program state is now subject to complex IO path that is not end-to-end checksum protected. Also you get unpredictable performance.

So typically: swap off on servers. Do they have a server story?

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m463 ◴[29 Aug 25 06:12 UTC] No.45060768[source]▶

>>45060597 #

I can see it now: pro ecc sata and m.2 ssds

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1. justsomehnguy ◴[29 Aug 25 14:18 UTC] No.45064472[source]▶

>>45060768 #

Well, SATA do have a basic CRC and you would see an increase in CRC transfer errors in SMART if the path (usually the cables) aren't good.

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