Questions tagged [raid]

RAID stands for redundant array of independent disks, and allows for disks to be linked in various ways. Common RAID setups in Ubuntu are a hardware RAID, FakeRAID and software RAID.

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Synology Raid 1 volume opened in Ubuntu

This is how i got the data off my synology 415+ when it died where i took the raid 1 set of disk(s) out (note my setup was not encrypted [update]). I'm mostly putting them here so that someone else ...
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How can I remove RAID 1 on Ubuntu 18.04 server to reclaim storage space?

I have a server with raid1 set up, I want more memory by removing raid1 but I don't know enough to do this. Please provide commands that will allow me to delete the raid and get 2 disks separately. ...
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Creating a 3 disk raid5 without losing data?

I had 1 4TB drive on its own that is quite full, now I got 2 additional 4TB drives, and I want to use the three in a raid5 configuration with some kind of software raid, like lvm or zfs. But I don't ...
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How can i access the logical disk(2hdd, raid1) from ssd (odd, Raid0) on a microserver gen8

i have configured the SSD as boot drive where ubuntu 18.04 server is installed and HDD as storage drive for both datasets and backup (boot controler b120i) Raid configuration with HPE Smart Storage ...
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os-prober not finding windows on intel softraid

Background: I have a Desktop with the following drive configuration: Ubuntu 20.04 on single SSD Windows 10 on a Intel RST Raid across 2 SSDs OS's are installed in UEFI mode Problem: OS prober does ...
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mdadm RAID 0 array Devices are busy - Ubuntu 20.04

Trying to setup a mdadm RAID array but I cannot create the array. I am using command: sudo mdadm --create --verbose /dev/md0 --level=0 --raid-devices=2 /dev/nvme0n1 /dev/nvme1n1p1 When I use this it ...
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Is it possible to have a dual boot in a laptop with raid 0 + ssd?

First of all, I'm lost here. I'm looking for a new laptop and it has: 2TB (2x 1TB PCIe M.2 SSD) RAID0 [Boot] + 512GB PCIe M.2 SSD [Storage] It comes with Windows installed, but I'd like to have a ...
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Deleting files from /mnt/md0 Frees Space Unexpectedly

When I delete large files from /mnt/md0, space appears to be freed from nvme0n1 because df- h shows that the usage for the filesystem moutned on / decreases significantly. Is my md0 array set up or ...
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Can a linux raid array be cloned?

I have my system all set up on a pair of older NVMe drives and I have a new pair of PCIe 4.0 drives coming in today. My motherboard will support all four drives. Is there a way to clone the arrays, ...
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Cloning boot drive that also contains software raid

Currently I have an old server running Novel OES. The drives (now drive) is part of a hardware RAID 1. To backup I just used YAST partitioner and cloned the partition table, allocated the rest of ...
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Are these r/w speeds OK for raid 0 nvme?

I have a raid 0 setup of nvme. I think they should read/write much faster. Can you kindly check if this is ok? Maybe I have just bought slow nvmes CPU intel 11700 NVME 2x ADATA XPG GAMMIX S50 Lite 1 ...
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Trying to install Ubuntu Server as RAID 1, leads to “ValueError: Failed to find storage volume”

I have 2 M.2 NVMe disks on a server that I'd like to setup as a RAID 1 for an Ubuntu Server installation. I was following these two guides (first and second) but will explain the steps I did and the ...
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How do I fix the read-only issue in Ubuntu without running fsck?

I have multiple clusters running Ubuntu 16.04LTS (about 300 servers total). Every week one of the servers switches to read-only. All I seem to be able to find is the quick fix of running fsck, what I ...
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MDADM - Looking for assurance I added a drive correctly

I had a 3 disk raid 0 using mdadm and I just tried to add a disk to the array to enable me to expand the space. The command was accepted however it then reported back that there were 5 disks in the ...
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Cannot find SATA operations on BIOS

im trying to install Ubuntu 20.10 and there's a problem with RST. I've tried this solution (Workaround to Install Ubuntu 20.04 with Intel RST systems) but I'm not finding SATA operations so i cannot ...
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Trying to recover data from /dev/sdb: TYPE=“nvidia_raid_member”

I am on Ubuntu 20.04 and I am trying to recover data from an old hard drive. I ran sudo blkid -c /dev/null and I got this output: /dev/sda1: UUID="8F08-B8B2" TYPE="vfat" PARTLABEL=&...
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Recommended change for Intel RST documentation

I'm not sure if this is the best platform to mention this, but the method for switching to AHCI described in the Intel RST documentation is unnecessarily complicated. Setting the registry keys is ...
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Ubuntu 20.04 headless disk allocation, only 10GB for /home/user

I'm using a pre installed and configured Ubuntu 20.04 image from my provider. The server is preconfigured with 2x1TB Raid1. I noticed once I set up a new User the allocated space was only 10GB. It ...
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Raid array is initiated but I'm unable to mount it

I have a NAS device (Synology Diskstation) with 2 HD mounted as Raid 1. I removed one drive from the NAS, installed it in an external USB HD case and I'm trying to mount it on my linux machine. I ...
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Create Raid1 on running ubuntu 20.04 system

I want to create RAID1 on my running Ubuntu server 20.04. to be more specific, I want to create raid1 with sda(where my system is running) and sdb. The two HDD are 1 TB. I think the tutorials and ...
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Cannot resize LVM2 RAID 5 array after adding a new disk

I've Googled until my fingers ache. For some reason, I can't seem to grow my LV after adding an additional (identical) disk to my VG. I think I've successfully added my fourth disk into the array. ...
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Is there a problem with my Ubuntu RAID array

I have an Ubuntu 18.04 server with two 1Tb drives in a software RAID1 array, configured during the OS installation process. I wanted the check the health of the array and disks this evening and am not ...
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HDD error or system hardware failure on aging home server?

I have ubuntu 20.04 desktop machine that I'm using as a home media server. I have the system installed on an SSD. There is also a Raid 5 mdadm array with 3 4TB seagate Iron Wolf Pro drives that are ...
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What's going on with mdadm --examine here?

I'm trying to figure out why my PCIe attached nvme drives don't seem to be being recognized properly and assembling into the RAID as I expected. Doing some trouble shooting and looking around this ...
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What is the best way to set up a RAID 0 for an Ubuntu-based linux install (AHCI / mdadm)?

I'm trying to install an Ubuntu-based linux on a RAID 0, consisting of 2 NVMe drives. I'm getting quite confused with the information available online, some sources say only AHCI support trim command, ...
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How to migrate from mdadm (RAID 1) from 2 HDD's to 2 SDD's

I would like to migrate a Dell PowerEdge R210 II from two HDD's (running RAID 1 via mdadm) to two SSD's of slightly larger size (512GB vs 500GB). The system currently boots using BIOS (not UEFI) ...
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Lost UUID on RAID devices after reboot

I'm looking for a bit of help trying to figure out why I can not reassemble a RAID after reboot. I have tried: sudo mdadm --assemble --scan My previous /etc/mdadm/mdadm.conf is as follows. The RAID ...
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Combine 3 1TB drives via LVM and then pair in RAID 1 with 1 3TB drive

I have 3 1TB drives I want to combine via LVM and the create a RAID 1 with a separate 3TB drive.Can this be done? All disks are just data storage in a home server, filesystem is on separate disks.
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How to power off Samsung SSD drive

I have Samsung SSD 860 EVO 500GB drive with Windows 10 and two HDD in RAID1. I started using Linux on different drive and I would like to power off my drives connected to windows. I am using sudo ...
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Missing disk space

I have a 2.4TB disc (Raid 1) and all I see is about 400GB. (df -h output is pasted below) Filesystem Size Used Avail Use% Mounted on udev 94G ...
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How to replace HDD for SDD on Ubuntu 20.04 using software-based RAID 1

I have a Dell PowerEdge R210 II with two 500GB 7200rpm HDD's setup with software-based RAID 1. I'd like to replace them with two Samsung SDD's. What is the simplest way to do this without a total ...
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Problem mounting a Synology SHR-2 Raid Array

I'm new to Ubuntu and I'm here to try and salvage a crashed Synology SHR-2 Raid Array. I've followed the Synology guidance on rebuilding the raid in Ubuntu in order to copy my data but I can't seem to ...
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Can an ex-RAID 1 drive (mdadm) be mounted normally?

I currently have a one-disk ext4 NAS using Ubuntu Server 18.04 on my LAN to which I am considering attaching another identical disk in RAID 1 using mdadm. But I am wondering if, following a catastophe ...
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Ubuntu NAS RAID repair

I have over 40 years of experience in the world of IT wizardry, starting with mainframes in the 70s, working my way up through CP/M on 8080s, through DOS, into Windoze, eventually MacOS, Android, and ...
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Raid 0 in Ubuntu desktop with mdadm

I am a newbie in configuring a storage system, so please feel free to state the obvious in your reply. Currently i am running Ubuntu 20.04.2 and I have a single 500Go SSD and I want to add another ...
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Easiest way to clone live Ubuntu Server installation

I'm using Ubuntu Server 20.04 for testing purposes and yesterday was the backup day - hardly to say backup, just removing the second drive from the md RAID 1, attaching it to another machine and then ...
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How can I mount a MacOS fusion drive?

When viewing the partitions, obviously there are two physical disks, but virtually it's being treated as one disk on MacOS (Fusion drive). How can one mount this on ubuntu? The normal mounting ...
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Is Ubuntu Server 18.04 supported on HP ProLiant DL 360p Gen 8

I'm thinking of purchasing an HP ProLiant DL 360p Gen 8 to run an EVE-NG lab. However I'm unsure if the HP ProLiant DL 360p Gen 8 can run the required OS: Ubuntu Server 18.04. The Ubuntu certified ...
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Read RAID array from partitions within ISO files and disks

How can I assemble a RAID5 array using mdadm, if my disks are actually partitions, and some of them are image files, rather than actual disks? I'm using Ubuntu 18.04 I have an old RAID 5 array that I ...
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Ubuntu 20.04 Can't See Hardware RAID Array

I'm relatively new to linux. I recently added an Ubuntu partition to my PC, which formerly only ran Windows 10. I have a main drive with both the OS for Windows and Ubuntu. When it powers up, I can ...
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Mac Pro Server 2008 Ubuntu conversion; besides the bootable USB the installer can not see storage devices

I am working with a 2008 Mac Pro Server w/ dual 3ghz Xeons 8gb RAM and 3x 1tb 7200rpm HDDs. The machine currently boots to the server version of Snow Leopard, and it's disks are not in a RAID set but ...
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Migrate ubuntu install to another drive on the same computer

I want to migrate all my current data, that includes files, desktop, home folder, programs and even open tabs in browser and history to another volume at the same computer without having boot/grub ...
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How to turn off SSD + HDD in RAID 1 from Ubuntu

I have following situation in my PC. I have one SSD drive with Windows 10 and two HDD connected in RAID 1 for data. I am learning Linux and for now I would like to boot it from Flash Drive. Would it ...
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My ubuntu 20.04 server boots but freezes on the grub error message disk filter writes are not supported

My ubuntu 20.04 server boots but freezes on the grub error message disk filter writes are not supported. I can't find a way to make it leave the page so I can run GRUB commands. the only way I've been ...
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Change mounting point of RAID1 volume

Created my homeserver running Ubuntu server to run all my dockers. Really happy that i got it up and running. However, as a newby i mounted my RAID1 volume (2x 3TB disks) at /Volume1 I would like to ...
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mdadm raid5 recovery after filesystem corrupt

TL,DR; I might've messed up huge, I need someone's help who knows mdadm better than I. I can provide any sort of data, but this crazy long story will get you up to par, if you care to read it. I'...
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Cannot mount external disk, input/output error, cannot write to block 1

Trusting this exact situation has not been addressed. External, old hard drive was in a RAID with another drive, just briefly to test and only as two separate drives, not contiguous or arrayed ...
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Can't seem to get RAID set up on Z97 mb as secondary backup mirror set

I have an MSI Z97A Gaming 7 motherboard. That uses Intel's Z97 Express chipset for FakeRAID. My primary boot is an m.2 drive, and I just installed two 10GB drives on SATA 1 and 2 for use as my ...
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Overwrote partition table (disk label) on LVM on HW RAID1

I have made a terrible mistake. I inadvertently updated the disk label on an LVM partition residing on a HW RAID1. I inherited a system that has two 1TB disks in a RAID1. It is/was running Ubuntu 18....
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How do you make a SSD cache for a Raid 5 HDD array Ubuntu NAS?

I'm trying to make a NAS in Ubuntu as I like the OS more, and I can install it on a partition of a drive, as opposed to FreeNAS or any dedicated NAS operating systems. However, one thing I liked about ...

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