#lvm — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #lvm, aggregated by home.social.
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Curious how common/popular it is to use #LVM partitions instead of standard #Partitions these days. I was just looking at the Arch Wiki page for [LVM](https://wiki.archlinux.org/title/LVM) and I was surprised by all of the disadvantages they called out. I feel like I had assumed it was mostly all advantages. I guess looking at the list of disadvantages, the only one I'm wondering about is the "potentially worse performance".
On your laptops or desktops, do you typically use:
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Is there a way to install Ubuntu on a manually created luks-encrypted LVM? #boot #partitioning #encryption #lvm
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Is there a way to install Ubuntu on a manually created luks-encrypted LVM? #boot #partitioning #encryption #lvm
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Is there a way to install Ubuntu on a manually created luks-encrypted LVM? #boot #partitioning #encryption #lvm
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Is there a way to install Ubuntu on a manually created luks-encrypted LVM? #boot #partitioning #encryption #lvm
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Is there a way to install Ubuntu on a manually created luks-encrypted LVM? #boot #partitioning #encryption #lvm
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Производительность софт NVMe рейдов на основе mdadm, LVM и ZFS при использовании iSER и NVMe-oF (100G version) — Part 2
Продолжение первой части, смысл данной статьи сохраняется, а именно показать максимальную производительность, когда вопрос сохранности данных решается репликами или бэкапами. Цель - протестировать производительность трёх систем объединения физических устройств в одно логическое систем при использовании iSER и NVMe-oF. Так как статья получилась объёмная, она поделена на 2 части. В этой части - тесты с использованием HCIbench и iSER\NVMe-oF
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Производительность софт NVMe рейдов на основе mdadm, LVM и ZFS при использовании iSER и NVMe-oF (100G version) — Part 1
Смысл данной статьи показать максимальную производительность, когда вопрос сохранности данных решается репликами или бэкапами. Цель - протестировать производительность трёх систем объединения физических устройств в одно логическое систем при использовании iSER и NVMe-oF. Так как статья получилась объёмная, она поделена на 2 части, в первой идут тесты на уровне локального устройства + вступление. Во второй уже тесты с использованием HCIbench и iSER\NVMe-oF
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Why $pvs,$vgs and $lvs commands do not detecting NVMe partition? #lvm
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Русская рулетка дедиков: Собираем RAID 1 + LVM на живой системе без Rescue-режима
Ситуация до боли знакома каждому, кто регулярно арендует выделенные серверы: вы оплачиваете счет, заходите по SSH и видите, что ОС установлена на /dev/sda, а второй диск просто болтается пустым. Никакого RAID, никакой отказоустойчивости. Умрет первый диск — ваши данные исчезнут. Мы в SoftStore идем по пути полного контроля над процессом. В этой статье разбираем пошаговый протокол: как собрать программный RAID 1 и LVM прямо на живой, работающей операционной системе без использования Rescue-режима и переустановки. В качестве бонуса — практика по управлению квотами, снапшотами и замене дисков в Production.
https://habr.com/ru/articles/1029498/
#RAID #LVM #mdadm #Linux #Debian #выделенный_сервер #миграция #системный_администратор #fstab #администрирование
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Русская рулетка дедиков: Собираем RAID 1 + LVM на живой системе без Rescue-режима
Ситуация до боли знакома каждому, кто регулярно арендует выделенные серверы: вы оплачиваете счет, заходите по SSH и видите, что ОС установлена на /dev/sda, а второй диск просто болтается пустым. Никакого RAID, никакой отказоустойчивости. Умрет первый диск — ваши данные исчезнут. Мы в SoftStore идем по пути полного контроля над процессом. В этой статье разбираем пошаговый протокол: как собрать программный RAID 1 и LVM прямо на живой, работающей операционной системе без использования Rescue-режима и переустановки. В качестве бонуса — практика по управлению квотами, снапшотами и замене дисков в Production.
https://habr.com/ru/articles/1029498/
#RAID #LVM #mdadm #Linux #Debian #выделенный_сервер #миграция #системный_администратор #fstab #администрирование
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Русская рулетка дедиков: Собираем RAID 1 + LVM на живой системе без Rescue-режима
Ситуация до боли знакома каждому, кто регулярно арендует выделенные серверы: вы оплачиваете счет, заходите по SSH и видите, что ОС установлена на /dev/sda, а второй диск просто болтается пустым. Никакого RAID, никакой отказоустойчивости. Умрет первый диск — ваши данные исчезнут. Мы в SoftStore идем по пути полного контроля над процессом. В этой статье разбираем пошаговый протокол: как собрать программный RAID 1 и LVM прямо на живой, работающей операционной системе без использования Rescue-режима и переустановки. В качестве бонуса — практика по управлению квотами, снапшотами и замене дисков в Production.
https://habr.com/ru/articles/1029498/
#RAID #LVM #mdadm #Linux #Debian #выделенный_сервер #миграция #системный_администратор #fstab #администрирование
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Русская рулетка дедиков: Собираем RAID 1 + LVM на живой системе без Rescue-режима
Ситуация до боли знакома каждому, кто регулярно арендует выделенные серверы: вы оплачиваете счет, заходите по SSH и видите, что ОС установлена на /dev/sda, а второй диск просто болтается пустым. Никакого RAID, никакой отказоустойчивости. Умрет первый диск — ваши данные исчезнут. Мы в SoftStore идем по пути полного контроля над процессом. В этой статье разбираем пошаговый протокол: как собрать программный RAID 1 и LVM прямо на живой, работающей операционной системе без использования Rescue-режима и переустановки. В качестве бонуса — практика по управлению квотами, снапшотами и замене дисков в Production.
https://habr.com/ru/articles/1029498/
#RAID #LVM #mdadm #Linux #Debian #выделенный_сервер #миграция #системный_администратор #fstab #администрирование
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Ein lieber Mensch hat mir seinen recht aktuellen Desktop vermacht, zu einem Preis für den aktuell vermutlich grad mal das RAM zu bekommen wäre. Das System darf dann mein fast volljähriges mit Xeao 550 i7 und GTX 770 ablösen.
Nur: Damals gab es noch kein Secure Boot, TPM und GPT und ich verzweifle daran auf dem neumodischem Schnickschnack ein #Arch mit #LVM auf #LUKS mit einem funktionierdem bootloader zu versehen.
Ob sich so Opa gefühlt hat, als er den VHS-Rekorder nicht programmieren konnte? -
Okay @kubuntu, I'm impressed.
The stability of LTS (locked package versions in between releases), nears stock and unmodified KDE Plasma 6, releases every 6 months on the dot...
And all of this without forcing user to Snap packages!
I think I found my Wayland daily driver. If only Calamares didn't crash when trying to manually partition LVM... But that's a bug in Calamares since like 2016, so unlikely to be fixed.
#ubuntu #kubuntu #plasma #daily #linux #foss #kde #flatpak #snap #lvm
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Unification de l'installeur : Le projet va désormais utiliser l'installeur de #LMDE (le "live-installer") pour toutes ses versions, remplaçant ainsi #Ubiquity. Ce changement permet de mieux supporter l' #OEM, le #SecureBoot et #LVM / #LUKS.
Arrivée de "Alfa" (Mint 23) : Une version de développement nommée provisoirement "Alfa" est déjà sur les rails.
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zstd 15 compressed btrfs on-top of dm_crypt/Luks2 on-top of dm_raid 5 on 4 slow 2.5" HDDs may be quite great for storage and ok-ish for accessing individual files.
But man is it slow in copying 3TB of files off of this thing onto another zstd 9 compressed btrfs on-top of dm_crypt/Luks2 on-top of dm_raid 5 on 4 also slow 3.5" HDDs.
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How many runways can you see for Mission Field airport in Livingston area (USA) ? : The answer is on https://www.bigorre.org/aero/meteo/klvm/en #missionfieldairport #airport #livingston #usa #klvm #lvm #aviation #avgeek vl
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What the fuck is #LVM doing when you issue the "unmount" command after you did a "sync" and when it reports being "100% synced"? (it's an LVM RAID5 just in case that changes anything)
Why is it taking that long to unmount?
WTF?!?
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T-40h until my disks are full and until then I need to have found a solution (Need about 10TB of additional usable storage).
Either:
* By then I need to have bought and received multiple ≥5TB disks (it's a LVM-RAID5, so 2-3 additional ≥5TB drives)
* Create a 2nd LVM with 1TB (or 4TB) disks and do silly things with overlays
* find something better. -
Best time to need new HDDs (not). And why? Cause my #LVM is stupidly sized (ok not really, but for the current storage prices it kinda is).
Would need 2-3x 5TB 2.5" HDDs.
Anyone know how reliable using 10x 1TB drives, grouped into 2x 5TB RAID0s for using them as pvs within another LVM-RAID5 would be?
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Anyone know if there is something equally simplistic and universal than LVM that allows for storage policies?
Aka. instead of needing equally sized disks to get something like RAID-5/6 but with an arbitrary amount of drives in arbitrary sizes? (Without the capacity capping).
For now say like I'd have something silly like this:
4x 5 TB
2x 20 TB
20x 1 TB
1x 500 GB
+ changeGoal:
* Encryption at rest
* Tolerates 2 drive failures without any dataloss at all (by more partial) -
Oh "rclone copy" apparently doesn't force a sync to disk. And if you're running it a server with e.g. 512GB of RAM than this can result in a ":wq" in vim to appear as if it froze.
Is vim forcing a generic sync to disk when it exists? Or is this some kind of kernel bug that it doesn't just force that one file to sync to disk and instead waits for everything currently pending to be written?
What's going on here exactly?!? -
How many runways can you see for Mission Field airport in Livingston area (USA) ? : The answer is on https://www.bigorre.org/aero/meteo/klvm/en #missionfieldairport #airport #livingston #usa #klvm #lvm #aviation #avgeek vl
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Der Tag fängt gut an. Ein linux lvm raid hat eine PV nicht gefunden und ich habe daraufhin, beim Versuch es zu retten, die lvs dabei gelöscht.
Gut das es nur das Backup war. Gut das ich da keine Daten rausziehen musste weil ich die längst woanders gesichert hatte ;) #lvm #linux #sysadmintales -
CW: Advice please?
@alcinnz @esoteric_programmer @bradr
Note that after renaming the #LVM volume group you might have trouble booting from or logging in using that disk - the path to the root volume will be different.
(I have a laptop with 2 SSDs, and wanted to install side-by-side versions of the same OS #debian, and mount my old home to copy across... -
How many runways can you see for Mission Field airport in Livingston area (USA) ? : The answer is on https://www.bigorre.org/aero/meteo/klvm/en #missionfieldairport #airport #livingston #usa #klvm #lvm #aviation #avgeek vl
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Kai sitä jokaisen vähintään kerran elämässään pitää erehdyksessä kirjoittaa #dd:llä #LVM:n yhden levyosion päälle ☹️
Sinänsä maailma ei kaadu: iso paikallinen LVM-osio on vain #NAS'sin varmuuskopio, minkä lisäksi siellä on ollut vain Git- ja SVN-repoja, jotka saa kopioitua maailmalta helposti takaisin. Tuleepahan harjoiteltua pelastustoimenpiteitä. #atkjuttuja #perkele
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It's bizzare to me, that the curtin installer, which is designed by @ubuntu to automate server and desktop installs doesn't allow me to configure striped LVM. I even found where in the code it could be added:
https://git.launchpad.net/curtin/tree/curtin/commands/block_meta.py
Line 1572, lvm_partition_handler, add if info.get('stripes') and cmd.extend(["--stripes", stripes])
(of course this would need a change in info to get a "stripes" key from YAML, but this shouldn't be too hard)
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Suspend then hibernate sounds simple, until LUKS and LVM enter the picture. Make it work without breaking your system. #linux #powermanagement #luks #lvm #hibernate #suspend
http://tomsitcafe.com/2026/01/14/suspend-then-hibernate-with-luks-and-lvm-a-practical-setup/
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Suspend then hibernate sounds simple, until LUKS and LVM enter the picture. Make it work without breaking your system. #linux #powermanagement #luks #lvm #hibernate #suspend
http://tomsitcafe.com/2026/01/14/suspend-then-hibernate-with-luks-and-lvm-a-practical-setup/
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Suspend then hibernate sounds simple, until LUKS and LVM enter the picture. Make it work without breaking your system. #linux #powermanagement #luks #lvm #hibernate #suspend
http://tomsitcafe.com/2026/01/14/suspend-then-hibernate-with-luks-and-lvm-a-practical-setup/
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How many runways can you see for Mission Field airport in Livingston area (USA) ? : The answer is on https://www.bigorre.org/aero/meteo/klvm/en #missionfieldairport #airport #livingston #usa #klvm #lvm #aviation #avgeek vl
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Suomalaiset .fi -verkkotunnukset eli domainit kallistuvat tammikuussa 2026.
Korotus on prosentuaalisesti iso, +33%. Mutta samalla saatiin torjuntavoitto, sillä etenkin yksityishenkilöitä sapettanut ehdotus verkkotunnusten välittäjämaksusta peruttiin.
https://dawn.fi/uutiset/2025/12/22/suomalaiset-fi-verkkotunnukset-kallistuvat
#dotfi #traficom #lvm #domain #uutiset #suomi #teknologia #tekniikka
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Suomalaiset .fi -verkkotunnukset eli domainit kallistuvat tammikuussa 2026.
Korotus on prosentuaalisesti iso, +33%. Mutta samalla saatiin torjuntavoitto, sillä etenkin yksityishenkilöitä sapettanut ehdotus verkkotunnusten välittäjämaksusta peruttiin.
https://dawn.fi/uutiset/2025/12/22/suomalaiset-fi-verkkotunnukset-kallistuvat
#dotfi #traficom #lvm #domain #uutiset #suomi #teknologia #tekniikka
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Suomalaiset .fi -verkkotunnukset eli domainit kallistuvat tammikuussa 2026.
Korotus on prosentuaalisesti iso, +33%. Mutta samalla saatiin torjuntavoitto, sillä etenkin yksityishenkilöitä sapettanut ehdotus verkkotunnusten välittäjämaksusta peruttiin.
https://dawn.fi/uutiset/2025/12/22/suomalaiset-fi-verkkotunnukset-kallistuvat
#dotfi #traficom #lvm #domain #uutiset #suomi #teknologia #tekniikka
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Suomalaiset .fi -verkkotunnukset eli domainit kallistuvat tammikuussa 2026.
Korotus on prosentuaalisesti iso, +33%. Mutta samalla saatiin torjuntavoitto, sillä etenkin yksityishenkilöitä sapettanut ehdotus verkkotunnusten välittäjämaksusta peruttiin.
https://dawn.fi/uutiset/2025/12/22/suomalaiset-fi-verkkotunnukset-kallistuvat
#dotfi #traficom #lvm #domain #uutiset #suomi #teknologia #tekniikka
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The ultimate #NAS-setup is a single-node #Ceph, is that correct?
#ZFS can't rebalance data (unless using dangerous rewriting)
#BTRFS shouldn't RAID5.
#LVM can't rebalance data.#CephFS is able to mix and match any number of striping, mirroring and erasure coding on the same set of hard drives.
Windows Storage Spaces is LVM in better, but CephFS makes all of this available on Linux. Have I missed any FS that is as flexible as either, Storage Spaces or CephFS?
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Game Two daddelt mal wieder auf YouTube:
#GameTwo #RocketBeans #RBTV #RocketBeansTvFinal Fantasy 7 oder Shadow of the Colossus? Welches Remake ist BESSER?
[WERBUNG] Hier geht's zum LVM-Season-Pass, um euren Code einzulösen: https://lvm-gaming.de/
►►► Hier könnt ihr uns
https://www.youtube.com/watch?v=DaNhIRWvfVM
#gaming #review #preview #reviews #residentevil4 #deadspace #systemshock #ratchetclank #pokemon #pokemonletsgo #crashbandicoot #spyrodragon #lvm -
Cloud Native LVM: как автоматизировать поиск и разметку локальных дисков в Kubernetes
Всем привет, меня зовут Александр Зимин, я руковожу разработкой подсистемы хранения данных в Deckhouse. Сегодня хочу поговорить о хранении данных на локальных дисках в Kubernetes и поделиться тем, как мы автоматизируем их поиск и разметку для администраторов и пользователей.
https://habr.com/ru/companies/flant/articles/951598/
#lvm #pvc #csiдрайвер #storage #отказоустойчивость #deckhouse #deckhouse_kubernetes_platform #dkp #локальный_диск #локальное_хранилище
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A quick follow-up: Given that caching an #LVM volume requires setting up a cache and a cache meta volume per data volume you need cached, this just gets needlessly complicated when dealing with a storage provisioner that constantly creates new volumes. Caching seems absolutely necessary with the hardware I have available and LVM seems like the only way to go. There are alternatives, like #flashcache by #Synology, but they're not part of the main stream #kernel.
The solution? It ain't pretty, and I have still to test the performance implications of it. I've created a 4TB file on a filesystem cached by LVM, created a #loopback device from it, initialized that as an LVM physical volume, then added a volume group. The #OpenEBS Local LVM provisioner now uses this group to provision persistent volumes in #Kubernetes.
Not sure about the implications of nested LVM'ing, but it solves the #caching issue.
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I'm running my own #Kubernetes cluster on bare metal at #Hetzner. I'm going through different iterations of node configurations, and trying to figure out how to squeeze the most out of a hardware configuration with a 10TB+ HDD drive and two 512GB #NVME drives. #bcache has apparently been discontinued, which leaves me with #dmcache, which is nicely built into #LVM.
One catch though: you need to create NVME cache volumes for each of the data volumes you create. This is all well and good if you're using a single volume for everything, and tools like #Longhorn work well in this kind of setup. Others, like the #OpenEBS LVM provisioner don't. There is a version in the making that just provisions raw disk images as files on whatever filesystem you have, but it's still lacking some features that are vital to me - primarily the ability to offer up StorageClasses that provision on different paths of the node, so I can pick a fast or slow filesystem to store it on.
Tips for other solutions?
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CW: Systems Administration, K8s, Storage.
At #work today I had an unexpectedly pleasant experience. With #kubernetes of all things.
I'm playing around with a sandpit #RKE2 cluster that I'm using to test how things are going to work when we need to deploy an actual working environment, and the matter of persistent storage came up.
A bit of poking around and I discovered #Longhorn. The requirements were trivial - all the required software was already present, just one service needed to be started. And so I installed it via #helm with just a handful of lines in the config.
And it just works. A fully distributed, clustered, read-write-many capable storage subsystem for Kubernetes, and it took me less than the time it is taking to write this to get it up and running.
I fired up a deployment that required multiple RWM PV's and ... it all just worked. I could even go into a management panel and see how the shards were distributed, and how busy everything was.
For a back-end all it needed was a filesystem on each node of the cluster, and even that could be managed with #LVM so it could be expanded at need.
Compared to the old in-tree VMWare CSI operator, this is a dream come true.
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A question for my knowledgeable friends:
I have an LVM with two VGs, one on each disk. VG1 has swap, / and a large empty LV (say, VG1-LV3). VG2 has my /home. I want to store my dropbox folder in VG1-LV3 (VG1 is my slower, replaceable storage). Question:
How do I mount it to /home/X/Dropbox so that it ONLY mounts for user X, and works on any login (ssh, shell, DE).
A simple fstab with uid,gid makes it visible to all.
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I've been doing things I shouldn't with #Kubernetes. We're using a replicated #MinIO cluster as the storage backend on #mstdndk, which requires a boat load of storage, especially if you forget to specify any kind of retention. So far, the quick workaround for a full disk, was just to expand the filesystem. Since we're replicating across nodes, we're using #OpenEBS #LVM for local storage. Poor partitioning means we're running out of storage on the volume group, but even worse - PVCs sizes were increased before checking if we had space for it. Kubernetes is now stuck in a most unfortunate situation - it can't grow the local filesystem, as the volume group is full and you're not allowed to decrease the size request. What then? Cue https://github.com/etcd-io/auger - a tools that allows you to edit #K8s resources directly in #etcd. Obviously you should never do this, but with steady hands and clinical precision, you can get yourself out of a pickle like mine. Size was reverted and PVCs were unstuck.
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Debian on encrypted LVM with Btrfs subvolumes
A simple tutorial on installing Debian on an encrypted LVM with btrfs and subvolumes :-) There are plenty tutorials out there already and I used to mix several methods to create my way of the process. This blog post is a kind note for myself. My recipe for something that fits and that I can read and use when I need it - but shared so that others can use it as well :-) A brief roadmap: I'll use a Debian LiveDVD for a command line install using debootstrap. /boot will be an unencrypted […]https://www.nixre.net/2025/09/24/debian-on-encrypted-lvm-with-btrfs-subvolumes/