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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Administering three disks in RAID 5

This is the first time I want to administer disks in RAID 5. I have 3 discs in RAID 5 that I want to install on my new PC ubuntu sever 14.04.2, I used command mdadm: sudo mdadm --create / dev / md0 ...
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45 views

How do I setup JBOD by installing Lubuntu?

I want to setup JBOD (Just a Bunch Of Disks) with Btrfs on Lubuntu 15.04.
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13 views

How could I set raid1 members to be offline temporary, to remain ready for use?

I have home server that is unused most of the time. So I wish to let spinning discs in it to go sleep. I gave up trying to stop rootfs writes waking up all drives permanently, so there is SSD disc for ...
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44 views

Ubuntu 12.04 and Hardware RAID 5 and LVM

I have an existing database server setup with RAID5 (3pcs 1 TB disk - usable is 2TB). One of its partition is /data is LVM. There is production data already in there so we opted to create another ...
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30 views

How to check ZFS Zpool is set up correctly?

I have just created a RAIDZ1 group of 3 x 2TB disks acc@CODAAMOK304:~$ sudo zpool status pool: storage state: ONLINE scan: none requested config: NAME STATE READ WRITE CKSUM ...
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29 views

Settings up RAID 1 on existing Ubuntu installation

Good morning, For my internship project I am currently setting up a Linux (Ubuntu 14.04.2 LTS) web environment (NGINX/PHP5/PHP-FPM/MariaDB and such...). Now I forgot to set up the RAID 1 ...
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18 views

Identify failed drive from RAID 5 NAS

I have a NAS with 4 drives setup in RAID 5. It recently started making a lot of noise (not good) but I couldn't figure out how to get the NAS system (iomega storcentre) to tell me which drive was ...
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63 views

Mount RAID 1 disk in Ubuntu 14.04

I have a dead WD My Book Live Duo case but the 2 HDDs inside are still ok. These drives are configured as RAID 1. I contacted WD's technical support and they told me to use Linux to access the files. ...
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24 views

Help! One of my raid partitions has disappeared

First time posting but I can't solve this by my self, so pleas help me. I have a problem, I can't access one of my partitions. I have three 2 TB disks that are running "hardware/intel software ...
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71 views

Rebuilding a RAID 1 array on a production server (Ubuntu 12.04.2 LTS)

I manage a production server which has a RAID 1 array with two identical hard drives. Apologies in advance, I've read many threads on this but due to the critical nature of the server, it will save ...
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27 views

RAID 1 disk from old server not recognized when taken off to a new machine

I had an old Ubuntu server at home, with two 1TB HDD in RAID1 configuration. I stored a lot of my works and stuff there, then eventually stopped using the server and let it get the dust for some time. ...
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31 views

Ubuntu OS on SSD and RAID 1 for data files

I have an ubuntu server OS installed on 80GB SSD HDD. I also have 2 1TB HDD used for data storage.Both were used as RAID 1 before. Now as my OS got corrupted I reinstalled with Ubuntu server 14.04. I ...
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91 views

Rebuild a vaporized dmraid array using mdadm

Executive Summary While upgrading from Utopic to Vivid, my system removed dmraid, which I was using as the RAID controller for the array that I booted from. How can I rebuild the array using mdadm ...
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88 views

How to install Hardware RAID Controller in Ubuntu Server

I am setting up an Ubuntu Server and I have a RAID drive with 5 disks with a VIA V-Raid controller, but I cannot configure the RAID drive as Ubuntu does not see it. What should I do? I need the RAID ...
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31 views

Software RAID 1 is only showing half its expected capacity

While installing Ubuntu 14.10 I manually partitioned and set up software RAID 1. I have 4 HDDs, each 2 TB. On each drive I set 8 GB of swap space and made the rest ext4 and bootable (both as software ...
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34 views

Shouldn't have left SATA port empty when creating RAID?

I recently added an md RAID5 to one of my computers. The boot & root filesystems were on the motherboard's SATA port 1, which became /dev/sda. I left port 2 empty for future use (oops?!) and ...
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83 views

UBUNTU Server Installer Does not Recognize the Hard Drives On A RAID-Based Server

My Usual Workflow: Usually I get/build a server, add the hard drives into it, then I install UBUNTU-Server through a bootable USB. Current Problem: I do have a set of servers, that have RAID ...
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76 views

Boot failure - /dev/mapper does not exist

I had a previously bootable version of Ubuntu, however now when I try to boot I see the error message ALERT! /dev/mapper/isw_bdacadajjgh_ARRAY0p5 does not exist. Dropping to a shell This is a work ...
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23 views

Unable to mount the FreeAgent GoFlex device

$ mount /root/Desktop/image.dd /root/mnt/recover -t ntfs Failed to read last sector (625137344): Invalid argument HINTS: Either the volume is a RAID/LDM but it wasn't setup yet, or it was not setup ...
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41 views

Crashed Ubuntu 12.04 Server -> Need Help Recovering & Transitioning To New Server

I have been running an Ubuntu 12.04 server with a single 2 TB hard drive in a somewhat-older small form-factor (SFF) PC for a while now. I had a headless CrashPlan client installed on it to back up ...
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134 views

Software RAID and Ubuntu 14.04.2

I recently changed my Plex server from the headless Ubuntu Server 14.04.1 to Debian 7.8, during which stability issues sprouted up with my software RAID which I thought were tied to Debian. I ...
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60 views

Can't run commands on server, Ubuntu 14.04

I'm pretty new at this, so it's likely that the problem is user error... Basically, I can SSH into the server and navigate around, but when I try to: sudo apt-get update I get a message: ...
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67 views

Booting Ubuntu 14.10 alongside Windows 8 stops working on installation of nvidia drivers

So I've built my own PC, and I'm trying to install Windows 8.1 and Ubuntu 14.10 alongside each other onto a 3 disk RAID5 array. The PC also has a fairly beefy video card (a Gigabyte Nvidia GeForce ...
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54 views

Server 14.04: fdisk sees disks, but GUI doesn't

I've got six drives that I'm looking to set up in a RAID10 configuration. 2x 2TB, 2x 1TB, 2x 500GB. The motherboard in this server (pretty old) supports hardware RAID10, but only with 4 disks, so I ...
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99 views

Software RAID with FakeRAID already enabled Ubuntu 14.10

Somewhat new to the Linux world, so I apologize if this seems a bit foggy: I dumped a bunch of drives into an old case with the goal of making a Ubuntu NAS. I enabled the on-board RAID option on my ...
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78 views

How to setup a RAID 1 array in 14.10?

I need to know how to set up my 2 1TB WD Red hard drives in a RAID 1 array. I've tried following a tutorial on this, but it was a very old tutorial. Please help me with a detailed response.
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150 views

Adaptec 8805 kernel panic on Ubuntu 14.04.1 64bit

I use QUADStor with Adaptec 8805 and constantly falls into a kernel panic by reason of AAC (adaptec) Current driver version: 1.2-0 (30200) Clean installed system with quadstor ... same errors ...
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63 views

How do I only install ubuntu 12.04 in hp z400 workstation?

I am trying to install ubuntu 12.04 in hp z400 workstation which has windows installed before. When I tried to install ubuntu, I got this error: “Unable to install GRUB in /dev/sda”. When I chose ...
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75 views

failed/degraded raid5 array recovery

First, thank you for your time and effort with helping to recover this raid array. I have a personal raid 5 array that is in rough shape. The failed array has eight 2 TB drives that were built up ...
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176 views

How to install Ubuntu Server 14.10 on an existing IMSM container (mdadm) of a machine that does not support the EFI specification?

How can I install Unbuntu server (14.04LTS or 14.10) on an existing IMSM container (using Intel's RST technology) on a machine that does not support the EFI specification? This is actually a business ...
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18 views

Ubuntu Ver 14.04

New to Ubuntu, we have a NAS drive that has a burned out board, inside the NAS are 2 x 2TB Drives with a RAID 1 COnfig. I have been told to use Ubuntu to access the data on one of the Raid Drives, I ...
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181 views

Dell Optiplex 780 stops booting at hardware RAID screen

I installed Ubuntu server on a Dell Optiplex 780. I have two 500GB WD blues in a hardware RAID1 on the machine. Any time I try to boot to the RAID, though, it hangs. There is a chart that has the RAID ...
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86 views

New SSD causing segfault on boot (14.04 LTS)

I have an Ubuntu 14.04 LTS 32 bit system configured as follows: 2 x 3Tb drives, in a RAID 1 array, mounted as /home 2 x 1 Tb drives, partitioned as: a /boot partition (/boot2 on the other drive) a ...
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53 views

Ubuntu 12.04 failed to boot in recovery mode with Degraded RAID1

I have Ubuntu 12.04 LTS installed in RAID1. Suddenly the system failed to boot (using Ubuntu with linux 3.2.0-45-generic Pae) with an error message There appears to be one or more degraded RAID ...
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24 views

Recover files from one drive from a raid1 array

A couple years ago I created a raid 1 array using two 1TB drives in a computer running Ubuntu 12.04. These drives stored my files (pictures, videos and music) and acted as a server for other computers ...
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51 views

How can I find the exact model of a hard disk in a raid?

I have a ProLiant DL380p Gen8 with 4 Plextor solid state drives RAIDed. Since one of these disks has failed (as I see in HP iLO4 of my server) I need to find the exact model of these disks to replace ...
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30 views

Problem with installation trying to find strange disk

When I use synaptic to install anything (in this case k4dirstat) I always get cascading errors. They start at: run-parts: executing /etc/kernel/postinst.d/zz-runlilo 3.11.0-19-generic ...
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146 views

Optiplex 740 E - Unbuntu 14.10 - raid install problems

I am trying to install ubuntu 14.10 onto dual 160gb drives setup in raid by the motherboard of my optiplex. I get through the install, but when after I get the a-ok that the install went well and then ...
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51 views

Re-install 14.04 and keep raid and lvm setup and data

I upgraded my 10.04 server to 12.04 and then immediately to 14.04. I had installed gnome in part to get graphic support for Boinc. 14.04 does not support my Nvidia Quadro NVS 285 video adapter, or ...
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71 views

MDADM: 3-drive RAID5 won't assemble (event count off by 2)

I just upgraded from 12.04 LTS to 14.04 LTS and when i tried to fire up my RAID it will not assemble... even using --force won't help, which is odd because yes the event counts are off but only by ...
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313 views

Trying to access/mount raid array with gpt partition table

My raid arrays seem to be giving me alot of hassle under linux. I have 2 RAID 0 arrays: - 2 x 120GB SSD with MBR partition table (windows 7 x64) - 2 x 3TB HDD with GPT partition table (data/storage) ...
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30 views

mdadm reports "

I'm running a software raid1 array with two 32GB USB 3.0 sticks holding my 14.04 LTS server. Querying the array returns the following: root@microserver:/home/leuser# cat /proc/mdstat Personalities : ...
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93 views

Cannot mount 2 windows merged ntfs volumes in ubuntu 14.04

when my brand new Ubuntu is trying to mount my two hard drives that was merged in windows 7 I get this message: Error mounting /dev/sdc1 at /media/luttikon/Media 1: Command-line `mount -t "ntfs" -o ...
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Questions About Raid 1 Configuration

I am considering setting up a RAID 1 configuration. My intention is to secure my data by having it on two hard drives. I have a couple questions. 1. What if one hard drive fails? Will Ubuntu ...
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225 views

Failed Dual Boot: Windows 8.1 & Ubuntu 14 - No operating system found

Please help, my situation is as below: I decided to give a try to dual boot windows 8.1 (Preinstalled with VAIO S on RAID0 (Intel RST)) and Ubuntu 14. However, all my boot entry on efi boot (left ...
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151 views

Xen 4.4 on Ubuntu 14.04 dom0 “Gave up waiting for root device”

I've failed to get any response from users on the Linux Mint forums, however, Mint being an Ubuntu egg, I thought I'd try here. I attempted to install Xen hypervisor 4.4 on a clean install of Linux ...
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127 views

Mirror my LVM data disks - Ubuntu 14.04 Server

First of all, this is my first post, and I am very new to Ubuntu and everything Linux. My problem is this: I recently installed Ubuntu server 14.04 on my home server's 1TB drive. I also have 2x 2TB ...
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25 views

Raid 0 with usb?

Is there a way to use two or three external hard drives to set up a Raid 0? Are Pci cards for this purpose available/dependable?
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203 views

Having trouble mounting a 12TB Raid on Ubuntu Server

I am running a Ubuntu server on my off of my 2008 MacPro, it runs great and works really well except I am not able to run any raid setups directly on it. I have a large library that needs to be ...
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159 views

can not boot: mountall main process terminated with status 2

i installed ubuntu 14.10 server and somehow it does not want to boot anymore: mountall main process terminated with status 2 my software RAID5 /dev/md1 should be mounted to /. I can mount it RW in ...