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George's Techblog

George Georgovassilis writes about information technology architecture

Tag: RAID

RAID + dm-integrity vs bit rot

In Building the perfect, cheap NAS I discuss bit rot which silently kills digital archives; my solution chosen back then builds on parchive which adds in a manual process redundancy to archives. This redundancy can be used to identify and correct bit rot to some extent. The issue with this approach is that it's manual … Continue reading RAID + dm-integrity vs bit rot →

george georgovassilis linux, Uncategorized Leave a comment 06 Oct 2021

md and dm-integrity performance issue

I'm experimenting with protecting the perfect NAS RAID setup against bit rot (silent data corruption in long storage) and recently experimented with dm-integrity towards that end. The idea is to add checksums on the block level to each hard disk so that data corruption shows up as an I/O error to md, which would then … Continue reading md and dm-integrity performance issue →

george georgovassilis linux, RAID 2 Comments 02 May 202106 Oct 2021

A crazy server recovery

If you're a seasoned server administrator then this post will boring beyond oblivion to you; the ingredients: a headless server (no screen, keyboard)years of personal backups on a linux software RAIDa botched system upgradehappy ending The pretext Several years ago I bought an HP Proliant microserver on discount and set up a NAS with Ubuntu … Continue reading A crazy server recovery →

george georgovassilis linux Leave a comment 27 Sep 201927 Sep 2019

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George Georgovassilis

I'm

George Georgovassilis

and this is my public diary about information system architecture, programming and methodologies.
#microcv

enterprise & cloud architecture with international consulting in digitalisation, insurance, banking, finance, government, telecommunication, transportation, retail, realestate and research. MsC | TOGAF | ITIL

Latest posts

  • 3M Happy Text
  • RAID + dm-integrity vs bit rot
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