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HabrПочему мы перешли на RAID 10Недавно у нас развалился RAID 5. Один диск на первом году своей жизни умер сам от естественных причин. Такое может быть и в период трёхлетней гарантии — нечасто, но может. Мы вынули его, поставили на его место диск из горячего резерва — и во время ребилда в массиве умер второй диск. Данные умерли вместе с ним. Один из пользователей, чьи данные там были, очень живо интересовался тем, что за конфигурация у нас была. Вплоть до моделей дисков, дат их производства и серийных номеров. Он, вероятно, считал, что там стоит какое-то старьё, и до последнего не верил, что так бывает на новом железе. Потом очень искренне смеялся над фразой, что ни одна схема резервирования RAID не даёт стопроцентной гарантии сохранности данных. Это правда: ни одна схема резервирования никогда не гарантирует 100 %. Случается всякое. Диски из одной партии могут умереть в один день: у нас такое было только один раз несколько лет тому назад, но было. Разболтавшийся кулер может вызвать резонансные вибрации, которые убьют два массива целиком: такое было больше пяти лет тому назад, и мы долго расследовали ту ситуацию. Бывает всё. В России не очень принято выплачивать компенсации за простои и потерю данных. В прошлом году мы поняли, что это важно делать, и включили такие пункты в соглашение. Это привело к целой цепочке последствий, в частности, к тому, что мы перешли на RAID 10 как на новый для нас стандарт хранения данных.<a href="https://habr.com/ru/companies/ruvds/articles/881290/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://habr.com/ru/companies/ruvds/articles/881290/</a><a href="https://zhub.link/tags/ruvds_%D1%81%D1%82%D0%B0%D1%82%D1%8C%D0%B8" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ruvds_статьи</a> <a href="https://zhub.link/tags/raid10" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#raid10</a> <a href="https://zhub.link/tags/%D1%85%D0%BE%D1%81%D1%82%D0%B8%D0%BD%D0%B3" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#хостинг</a> <a href="https://zhub.link/tags/%D1%85%D1%80%D0%B0%D0%BD%D0%B5%D0%BD%D0%B8%D0%B5_%D0%B4%D0%B0%D0%BD%D0%BD%D1%8B%D1%85" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#хранение_данных</a> <a href="https://zhub.link/tags/%D1%81%D0%B5%D1%80%D0%B2%D0%B5%D1%80" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#сервер</a>

Asta [AMP]question for tech-y storage people: I just nabbed 4 extra (used) disks with a 6 TB capacity from a place that re-sells electronics (oregonrecycles.com); I think they did some testing but obviously I dunno what to extent, and also, if it was just limited to stuff like SMART data, well... anyway, I wanna RAID it, which is fine, but I don't know how much lifetime these have left on them. For four disks with unknown usage, should I use RAID6 or RAID10? It's not job critical data I'll be storing on these (mostly media and such). They'll eventually be migrated into a larger RAID array but that won't happen until I'm stable and can afford to rebuild my server so this is fine for now. I wouldn't mind the better read/write performance that comes with RAID10 even though it has less parity. I suspect these disks were all used together so they might have similar wear/tear patterns; in that case, I'm wondering if RAID6's double parity actually buys me any extra life? Like, given 4 disks with the same history and a probably known disk failure rate, I'm not really clear as to whether double parity is going to make much of a difference (and that if one goes down, the others probably aren't too far behind). <a href="https://fire.asta.lgbt/tags/techPosting" rel="nofollow noopener noreferrer" target="_blank">#techPosting</a> <a href="https://fire.asta.lgbt/tags/raid" rel="nofollow noopener noreferrer" target="_blank">#raid</a> <a href="https://fire.asta.lgbt/tags/raid6" rel="nofollow noopener noreferrer" target="_blank">#raid6</a> <a href="https://fire.asta.lgbt/tags/raid10" rel="nofollow noopener noreferrer" target="_blank">#raid10</a> <a href="https://fire.asta.lgbt/tags/storage" rel="nofollow noopener noreferrer" target="_blank">#storage</a> <a href="https://fire.asta.lgbt/tags/nas" rel="nofollow noopener noreferrer" target="_blank">#nas</a>

Leszek CiesielskiIf I were to setup a <a href="https://hachyderm.io/tags/DYI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DYI</a> <a href="https://hachyderm.io/tags/NAS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NAS</a> server in 2025, what should it be? I've got an HP Proliant N40L G7 with 5 drives (a mix of 750 GB and 1 TB ones) that used to run <a href="https://hachyderm.io/tags/Gentoo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Gentoo</a> and had the drives in <a href="https://hachyderm.io/tags/RAID10" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RAID10</a> over <a href="https://hachyderm.io/tags/LVM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#LVM</a> volumes. This worked, but was quite a faff to manage.What's the modern equivalent? I need it to run docker containers and serve files over LAN, that's it.

tootbruteIs there an authoritave <a href="https://fedi.arkadi.one/tags/mdadm" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mdadm</a> reference like <a href="https://openzfs.readthedocs.io/en/latest/" rel="nofollow noopener noreferrer" target="_blank">https://openzfs.readthedocs.io/en/latest/</a> is for zfs?Stack overflow q & a's not filling me with confidence<a href="https://fedi.arkadi.one/tags/raid10" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#raid10</a> <a href="https://fedi.arkadi.one/tags/raid" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#raid</a>

tootbruteok the more i read about this the more i'm getting confusedis A+B a full set of data, or A + A is the whole set of data?<a href="https://fedi.arkadi.one/tags/raid10" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#raid10</a> <a href="https://fedi.arkadi.one/tags/mdadm" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mdadm</a>

scs | scnrFragen, die man sich mitten in der Nacht vor dem Schlafen gehen stellt - <a href="https://chaos.social/tags/ZFS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ZFS</a> Datapool für VMs/LXCs bei (noch) fünf (bald sechs) gleich großen SSDs mit <a href="https://chaos.social/tags/RAID10" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RAID10</a>, <a href="https://chaos.social/tags/RAIDZ" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RAIDZ</a> oder <a href="https://chaos.social/tags/RAIDZ2" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RAIDZ2</a>? Das werde ich wohl aber erst morgen (as in nach dem Schlafen) entscheiden müssen/dürfen. <a href="https://chaos.social/tags/HomeLab" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#HomeLab</a>

Vito BottaCan anyone confirm whether with <a href="https://botta.social/tags/softraid" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#softraid</a> <a href="https://botta.social/tags/raid10" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#raid10</a> you can safely remove a faulty drive from an array even if it contains the root partition of the live system? I found mixed information on this. <a href="https://botta.social/tags/linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#linux</a>

keadamander<a href="https://fosstodon.org/tags/raid5" class="mention hashtag" rel="tag">#raid5</a> <a href="https://fosstodon.org/tags/raid10" class="mention hashtag" rel="tag">#raid10</a>I am setting up a SAMBA NAS with RAID ... using USB Flash drives. "Why? WTF?" you might ask ... because I can ;-)A so-called crazy idea that wants to be realized.So I bought the cheapest USB flash drives I could get from an electronics retailer nearby. Around 45€ per stick and this 4 times.I have Raspberry Pi 4 and VisonFive2 to choose from.As RPI4 has 2xUSB 2.0 and 2xUSB 3.0 I will go for VF2 4xUSB3.0.

RudiMy <a href="https://nightmare.haus/tags/NFS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NFS</a> might have commit death, but I'm not sure how yet... So far from the autopsy: Two physical disks in a <a href="https://nightmare.haus/tags/RAID10" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RAID10</a> virtual disk have failed. It seems they may be the same stripe but I'm unsure how to confirm. I've ordered two new disks to try and rebuild the raid but I think any of the non-archived data will be lost 😭 if I have to restore data from my archives, I may push mastodon to use a smaller disk for media instead of NFS.Any <a href="https://nightmare.haus/tags/Dell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Dell</a> <a href="https://nightmare.haus/tags/PowerEdge" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerEdge</a> <a href="https://nightmare.haus/tags/Debian" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Debian</a> or relevant perspective welcome!!

Christiaan :nixos: :flag_nl:So my first <a href="https://fosstodon.org/tags/Btrfs" class="mention hashtag" rel="tag">#Btrfs</a> migration seemed to have gone smoothly. After installing <a href="https://fosstodon.org/tags/Debian" class="mention hashtag" rel="tag">#Debian</a> 12 on the system drive I could just mount my old Btrfs <a href="https://fosstodon.org/tags/RAID10" class="mention hashtag" rel="tag">#RAID10</a> and the file/directory structure I had put on it was still intact ✌️🤠<a href="https://fosstodon.org/tags/HomeLab" class="mention hashtag" rel="tag">#HomeLab</a>

YoSiJo :anxde: :debian: :tor:```bash while true; do sleep 1 grep --perl-regexp --quiet '^1*\d\.' /proc/loadavg && btrfs balance status /mnt/btrfs/… | grep --quiet 'No balance found on' && btrfs balance start -dconvert=raid10 -dlimit=1 /mnt/btrfs/… sleep 1 done ```Mögen die Spiele beginnen. 300TB <a href="https://social.anoxinon.de/tags/btrfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#btrfs</a> von <a href="https://social.anoxinon.de/tags/raid1c3" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#raid1c3</a> in <a href="https://social.anoxinon.de/tags/raid10" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#raid10</a> Konvertieren. Denke mal in ein paar Monaten wird das erst durch sein.

Karanbir SinghMy old <a href="https://social.afront.org/tags/qnap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#qnap</a> 4disk <a href="https://social.afront.org/tags/NAS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NAS</a> has given up and decided to call it a day. Anyone want to recommend a replacement?I want to retain the 4 3.5" sata disks, and add another 4 2.5" ssd's. Also looking for a <a href="https://social.afront.org/tags/10gig" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#10gig</a> link and enough performance to do it justice. I run <a href="https://social.afront.org/tags/raid10" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#raid10</a> , and <a href="https://social.afront.org/tags/ipv6" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ipv6</a>

Christiaan :nixos: :flag_nl:Just out of pure curiousity, but does anyone in their <a href="https://fosstodon.org/tags/HomeLab" class="mention hashtag" rel="tag">#HomeLab</a> have a <a href="https://fosstodon.org/tags/StorageAreaNetwork" class="mention hashtag" rel="tag">#StorageAreaNetwork</a> or <a href="https://fosstodon.org/tags/SAN" class="mention hashtag" rel="tag">#SAN</a> for short? I am contemplating setting one up with a few <a href="https://fosstodon.org/tags/SBCs" class="mention hashtag" rel="tag">#SBCs</a> or low wattage machines, with all <a href="https://fosstodon.org/tags/RAID1" class="mention hashtag" rel="tag">#RAID1</a> set-up instead of <a href="https://fosstodon.org/tags/RAID10" class="mention hashtag" rel="tag">#RAID10</a> on a single machine.What are you thoughts about that scenario community? <a href="https://fosstodon.org/tags/100DaysOfHomeLab" class="mention hashtag" rel="tag">#100DaysOfHomeLab</a> <a href="https://fosstodon.org/tags/SelfHosted" class="mention hashtag" rel="tag">#SelfHosted</a> <a href="https://fosstodon.org/tags/SelfHosting" class="mention hashtag" rel="tag">#SelfHosting</a>

Christiaan :nixos: :flag_nl:<a href="https://fosstodon.org/tags/100DaysOfHomeLab" class="mention hashtag" rel="tag">#100DaysOfHomeLab</a> <a href="https://fosstodon.org/tags/Day4of100" class="mention hashtag" rel="tag">#Day4of100</a>So another update from me, because sometimes things go slow. I've booted a <a href="https://fosstodon.org/tags/NixOS" class="mention hashtag" rel="tag">#NixOS</a> live image and the <a href="https://fosstodon.org/tags/badblocks" class="mention hashtag" rel="tag">#badblocks</a> program is running a check of my four 4TB drives (been running for 86 hrs and done 84% I think the last time I checked). I did change my decision to use <a href="https://fosstodon.org/tags/NILFS2" class="mention hashtag" rel="tag">#NILFS2</a> & <a href="https://fosstodon.org/tags/RAID6" class="mention hashtag" rel="tag">#RAID6</a>. After deliberate consideration I've switched my choice to <a href="https://fosstodon.org/tags/ZFS" class="mention hashtag" rel="tag">#ZFS</a> with <a href="https://fosstodon.org/tags/RAID10" class="mention hashtag" rel="tag">#RAID10</a>. — no longer NILFS2 because it doesn't have compression and ZFS even includes the kitchen sink - 1/2

Dr. Roy Schestowitz (罗伊)<a class="hashtag" href="https://pleroma.site/tag/linux" rel="nofollow noopener noreferrer" target="_blank">#Linux</a> <a class="hashtag" href="https://pleroma.site/tag/kernel" rel="nofollow noopener noreferrer" target="_blank">#Kernel</a> Space: <a class="hashtag" href="https://pleroma.site/tag/trenchboot" rel="nofollow noopener noreferrer" target="_blank">#Trenchboot</a> , <a class="hashtag" href="https://pleroma.site/tag/raid10" rel="nofollow noopener noreferrer" target="_blank">#RAID10</a> , Spelling Mistakes and <a class="hashtag" href="https://pleroma.site/tag/initcalls" rel="nofollow noopener noreferrer" target="_blank">#Initcalls</a> <a href="http://www.tuxmachines.org/node/142561" rel="nofollow noopener noreferrer" target="_blank">http://www.tuxmachines.org/node/142561</a>

Dr. Roy Schestowitz (罗伊)Kernel: i.MX8, <a href="https://pleroma.site/tag/rockchip" rel="nofollow noopener noreferrer" target="_blank">#Rockchip</a> , RGB LED, KUnit, <a href="https://pleroma.site/tag/raid10" rel="nofollow noopener noreferrer" target="_blank">#RAID10</a> <a href="http://www.tuxmachines.org/node/119198" rel="nofollow noopener noreferrer" target="_blank">http://www.tuxmachines.org/node/119198</a> <a href="https://pleroma.site/tag/kernel" rel="nofollow noopener noreferrer" target="_blank">#kernel</a> <a href="https://pleroma.site/tag/linux" rel="nofollow noopener noreferrer" target="_blank">#linux</a>

Dr. Roy Schestowitz (罗伊)Too much disk IO on sda in <a href="https://pleroma.site/tag/raid10" rel="nofollow noopener noreferrer" target="_blank">#RAID10</a> setup <a href="https://blog.windfluechter.net/content/blog/2019/01/05/1750-too-much-disk-io-sda-in-raid10-setup" rel="nofollow noopener noreferrer" target="_blank">https://blog.windfluechter.net/content/blog/2019/01/05/1750-too-much-disk-io-sda-in-raid10-setup</a> <a href="https://pleroma.site/tag/debian" rel="nofollow noopener noreferrer" target="_blank">#debian</a> <a href="https://pleroma.site/tag/linux" rel="nofollow noopener noreferrer" target="_blank">#linux</a> <a href="https://pleroma.site/tag/kernel" rel="nofollow noopener noreferrer" target="_blank">#kernel</a>

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