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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Does an HP Proliant DL360 G9 is supported by Ubuntu (Any version)?

I would like to know if Ubuntu can be installed on a new server HP with this characteristics: HP Part number: 755262-B21 Specifications: HP ProLiant DL360p Gen9, Intel® Xeon® E5-2630v3 ...
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7 views

Error unknown command hwmatch

I'm getting "unknown command hwmatch" message on each boot after I installed Ubuntu 16.04 following this steps: https://gist.github.com/umpirsky/6ee1f870e759815333c8 in order to setup RAID0. Special ...
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40 views

[Solved]Passwords not recognized after install of Ubuntu server 16.04 x64

It is a bit ridiculous. I just installed Ubuntu server 16.04, the install was fine, I entered a user password and root password. But right AFTER reboot I can't login. Not as user, not as root. Okay ...
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Cannot edit /etc/initramfs-tools/conf.d/mdadm and /etc/udev/rules.d/RULE on 16.04 Server

I have just installed Ubuntu server 16.04 LTS with a RAID 1 configuration. I want to edit the mdadm file so I could work on the machine while the raid mode is degraded. The problem is, that there is ...
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13 views

Migrating W7 file server to ubuntu server 14.04

About 3 years ago a built a file server with a LSI MegaRAID 9280-24i4e hardware raid controller along with AMD Phenom II x4 cpu, 8GB of RAM and the OS that I chose was W7 and is installed on separate ...
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Disk has disapeared, Raid 1 appears to have changed disks :( and emergency mode!

What a muddle....I had managed to set up a Ubuntu 16 server utilising a software RAID 1=(sda & sdb) Had added a second disc mounted to /media/BackupDrive sdc. all with samba, all was well :) ...
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13 views

How to do RAID 0 or 1 on Chromebook(Hear me out before you say not Ubuntu)?

I am a amateur at Chromebook just saying! Ok,so I just recently bought a HP Chromebook 14-ak010nr from hp.com. After a few days, I got tired of the 16 GB storage when trying to dual-boot Ubuntu(even ...
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10 views

mdadm monitoring script after boot

the mdadm monitoring program is not working after boot. When i kill the process afterwards and run mdadm --monitor --scan again, everything is ok and the script runs on failures. Here ist my ...
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34 views

Unable to Partition Software RAID 0 array with 16.04 Server + Z170 Skylake, ACPI Exception in log

I'm trying to do a clean install of 16.04 on some new hardware, and I'm unable to partition/install onto a RAID 0 array. Motherboard: AsRock Z170 Fatal1ty ITX/ac (SATA devices set to AHCI, also tried ...
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24 views

Filesystem/RAID configuration to stripe/mirror three hard drives

I have 3 HDDs in my workstation: 1.5 TB (drive "A") 2TB (drive "B") 4TB (drive "C") I am doing a fresh install of 16.04. I would like to find a filesystem/RAID configuration that allows me to ...
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6 views

Adding disk and converting RAID 0 to 5

I used MDADM to create a 4-disk RAID 0. I have another disk I want to add and convert the array to RAID 5. I'm already aware of the risks of RAID 5 but it is my best option at this time. How would I ...
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35 views

Raid 5 array built with incorrect partition size (Ubuntu Server 14.04)

First of all, I am an absolute beginner with Ubuntu Server. I decided to build my own server and running it with 4x 3TB drives in a software RAID mounted as /home and an SSD with the OS on it. When I ...
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3 views

DMRaid Not Detecting its disks

We had a software raid using dmraid in an ubuntu 14.04 box. For some reason, we changed the sata ports per disk. The disks were removed and added again to the case but on different sata ports ...
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84 views

RAID 0 installation instructions

I am looking for specific instructions for installing Ubuntu (clean install) on 2 identical hard drives in a RAID 0 configuration (striped). Have never found anything that describes how to do ...
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18 views

Drive Encryption Ubuntu Server 15.10

I have a small server running Ubuntu Server 15.10 from a usb stick. I have 6 drives of varying size all formatted to ext4. 2 drives I plan to configure using Raid 1. The remaining 4 drives I plan to ...
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1answer
29 views

Kernel panic not syncing timeout synchronizing machine check over cpus

We installed an Ubuntu Server 14.04.4 LTS to one of our customer's server. Server has large storage drives and software RAIDed SSD disks for OS. Server is crashing randomly. And we are getting error ...
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50 views

What is 'AHCI mode' - HP ProLiant MicroServer Gen8

I have just purchased this server and I would like to install Ubuntu Server on it. I would like to keep RAID support, although I'm currently only using one HDD which will have my files and OS on it. ...
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1answer
15 views

Pointers / advice on Ubuntu Server install on HP Gen 8 G1610T microserver

I've recently purchased an HPE Microserver G8 GP1610T, 120GB SSD drive and a couple of 2TB drives to build an Ubuntu based server with the OS on the SSD drive and two 2TB drives as mirrored (RAID1) ...
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13 views

kworker using all my IOs, Postgres slow

I have 2 SSDs set up in RAID 0 configuration with a single volume on them that I've been using without problems for 3 months straight to run a PostgreSQL database. Suddenly, today, the DB got really ...
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12 views

Server 14.04 Install Onto Software RAID1 Fails to Boot

New 14.04 server install onto host with 2 x 1 Tb drives, followed https://help.ubuntu.com/lts/serverguide/advanced-installation.html to setup a software RAID 1, end of install reboot and I get no ...
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19 views

ZFS zpool import in ubuntu taking very long after system crash and reinstall OS

Don't know if the events were related in any way: zpool set to automatically run scrub on crontab, most recent scrub completed a few days ago, 3 unrepairable errors on 3 files. I did not require ...
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23 views

Raid 0 drives are not detected during Ubuntu 15.10 installation on GT72S 6QE dominator pro G

I have GT72S dominator pro G, with 128+128 Gb RAID 0 configured SSDs. I have 1TB mechanical disc as well. Windows 10 on UEFI mode is already installed. Trying to dual boot ubuntu and w10. The problem ...
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How do I add a partition (specifically swap) to my raid0 laptop setup?

EDIT: yes, gparted was the (in hindsight obvious) answer I foolishly didn't create swap space when I installed Ubuntu alongside Windows on my Acer laptop with 2 SSDs preconfigured as raid0. Now I ...
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27 views

Help, cannot install Grub

I have a recent motherboard (GA-X79-UP4), and a couple of 3TB Seagate drives. Trying to install Ubuntu 15.10, in a RAID5 configuration. Using the server image, since the desktop one does not seem to ...
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21 views

Creating boot partitions on multiple disks

I'm trying to get some redundancy with RAID1 on my Ubuntu Server box. I've made some good progress using the install wizard but I'm stuck on the following: >> lsblk NAME ...
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What does this fstab configuration line mean?

I am trying to mount a RAID array on my computer, and I found a guide on the Internet that told me to add this file to /etc/fstab: /dev/md0 /mnt/raid/ext4 defaults 0 0 What does /dev/md0 and 0 0 ...
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14 views

Procedure for rebooting server with Soft RAID mdadm

I've just made a raid10 on my ubuntu 14.04 server, and i was wondering if there was any step too do if i would to shutdown/reboot my server. It a Software RAID with mdadm. Do i need to make a script ...
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28 views

Installing Steam games on a RAID 0 array

So I just put a few old drives in a RAID 0 using mdadm and it was originally just for STeam games, but when I hit install, I don't know how to make it download onto my RAID 0 array... So is there a ...
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45 views

mdadm raid 1 to raid 0 (or lvm…)

I currently have a machine with 2x3TB in software raid 1 (mdadm, Ubuntu 15.04). I would prefer to keep the data on the disks, but I can risk losing it. Are there any options to migrate without ...
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Convert software RAID fileserver from Windows to Ubuntu

I currently have a fileserver running on Windows 7 (it started as an old backup machine but has grown). It has 1 SSD for the OS, and 6 1TB HDDs, in 3 RAID 1 pairs. This was done via Windows' disk ...
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How do I recover my RAID 1 file system after formatting it?

I used mkfs.exfat /dev/md0p1 by mistake, and killed my RAID 1 instead of formatting a micro SD card. Very dumb, I know. How can I undo this colossal mistake? I'm reasonably confident that the two hard ...
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23 views

Ubuntu won't boot after install on software raid r

I have installed server v15.10 and created a software raid 5 array. After partitioning and setting the EFI system partition as bootable it does the install with no problems. When done it reboots and ...
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Is my mdadm command correct, should I check something else before entering it?

The question: Would someone please confirm that I have investigated the correct factors and am about to use the correct mdadm command before I do something that might damage the data in my ...
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40 views

Trying to mount old NAS hard drive - mount: Structure needs cleaning

I had a Western digital. The software was not working anymore, so I remove the hard drive. The HD is a Western Digital Caviar Green of 1 To I connect through a USB hard drive converter and..... ...
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MDADM Existing RAID

I just swapped from Fedora 20 over to Ubuntu 14.04 LTS. I have a pair of drives that were setup using RAID 1 (mdadm) and working beautifully. The OS is on a third drive (SSD). The web is awash in ...
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21 views

Extend primary partition [duplicate]

In planning for the future, I've been trying to extend the total size of our primary partition running Ubuntu Server 14.04 (from 6TB to 15TB). It was setup as a virtual disk (PERC H730 RAID ...
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92 views

Issue setting up Samba on Ubuntu 15.10 - most likely a permissions issue

I'm trying to install Samba on Ubuntu 15.10. I've setup samba like I have on any other server but I'm having trouble with some sort of permissions issue. The share is visible but I cannot access the ...
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23 views

SoftRAID array not visible to apps on boot?

My / is located on a single SSD, but I also have a softraid for my apps, games, etc. Most notably, both my Steam library and my Dropbox folder are located on the raid array. Whenever I boot my ...
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Moving from two hard drives to one, plus a RAID array. Will I have problems?

I currently have a setup with two filesystems, /dev/sda and /dev/sdb, each with one partition. I boot from /dev/sda1 and have my /home on /dev/sdb1. /dev/sda is a solid state drive and /dev/sdb is a ...
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LVM mirrored reads goes to one drive instead of both

I've set up LVM mirror on two HDDs. The mirror works (and even has proven it's efficiency when drives failed two times). The problem is that all read operations goes to only one HDD, I see it with ...
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25 views

Ubuntu MaaS 1.9 RAID1 boot from degraded

MaaS 1.9 came out with a new feature of creating raid arrays with mdadm. I would like to use this to create redundant boot disks of a server which has no hardware raid. MaaS only allows one boot ...
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21 views

Copying a Ubuntu installation from a single hard drive to BIOS RAID 0

I am trying to copy an existing Ubuntu installation on a 250GB drive to a BIOS created RAID 0 array with two 160GB drives. I've tried Clonezilla, but it doesn't seem to support BIOS RAID, as the two ...
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SSD Not part of Raid?

I was playing around with BTRFS calculator (link below). I have 2 2TB Drives and 1 3TB drive. I also have a 120GB SSD. I was thinking Raid 5 with the operating system loaded on the SSD. It said I ...
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32 views

Auto-mount flashcache'd drive (RAID array) on startup

I have recently created a RAID5 array with mdadm and cached it through SSD using flashcache. Everything works great, however I cannot make the drive to be mounted on system's startup: Every time a get ...
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RAID5 disappears after reboot

I am struggling with setting up RAID5 for my workstation running Ubuntu. Having read a plenty of guides and tutorials I managed to: create a RAID5 array from 3 disks in Intel RST ROM Utility setup ...
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45 views

SATA configuration mode RAID doesn't pick up SSD

I just got a laptop with Windows 10 on a 500gb SSD. I partitioned it in order to install Ubuntu. When I got to the Ubuntu installation screen, I couldn't pick up my SSD (it only picked up the HDD). In ...
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41 views

Recovering a healthy RAID disk from an Ubuntu server: mdadm no recogniseable superblock

I've had a series of different issues with recovering a RAID disk, ending with the error reported in the subject. Please skip the long story to come to the conclusions if you want. Long story: I ...
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RAID array shared between Windows and Ubuntu

I am booting both Windows 10 and Ubuntu 14.04 off their own dedicated SSDs. No problem. I have 3 2TB HDDs I would like to run in a RAID5 array which I can share between both operating systems. I ...
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73 views

Mount point [UUID] does not exist (Ubuntu 14.04 LTS)

I have an Ubuntu desktop with 1xSSD with the system installed (/dev/sda) and 4xHDDs running in softraid (/dev/md0, sd[b-e]). Currently whenever I power on my PC, Ubuntu initially fails to boot, ...
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MAAS 1.7.6: ProLiant DL360 Gen9 - HP Dynamic Smart Array B120i controller driver for Ubuntu 14.04 does not work when configured as RAID 1 device

We are having issues configuring two ProLiant DL360 Gen9 servers, which are configured in a RAID 1 and in UEFI mode. The installation gets stuck at 'booting under maas direction'. The servers have ...