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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Mainboard RAID or something else?

I am trying to install Ubuntu Server on my new machine. I configured RAID through the BIOS prior to installing the OS. I set it up for RAID-1. When I go through the install process the installer ...
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users and shares on external partition

I have tried my upmost to get this working and have lost the will to live but am not going to give up! Basically, I have 1 SSD which I have just installed Ubuntu 14.4.01 on fresh and I have created a ...
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Configuring RAID in HP Proliant ML350e Gen8

We have purchased two stock HP ML350e Gen8 servers. Ubuntu 12.04 is to be installed in those. The stock base unit have provision for 6 hard disks for creating RAID in which, one is filled with 500GB ...
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Slow startup with raid0 ssd… Bootchart

My laptop is an HP Elitebook with an RAID0 Samsung 840 evo (2x120GB) Array Windows loads fast, but ubuntu boot time is extremely slow - 02:49 minutes!! (also, the screen flickers weirdly as it shows ...
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Unable to access “222 GB Volume”

I've installed ubuntu 14.04 along with windows 8.1. After installing ubuntu I'm unable to boot windows and unable to mount my 222 GB volume. I got following error when i tried to mount my 222 GB ...
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69 views

How can I ensure simple way RAID 1 is working?

I have formatted 2 large hdds and connected them to RAID with commands: mdadm --create /dev/md0 --level=1 --raid-devices=2 /dev/sdb1 /dev/sdc1 mkfs.ext4 /dev/md0 mkdir /mnt/data mount /dev/md0 ...
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Booting from raid

I've installed ubuntu server 14.04 on a small rack server. It has two disks 500GB each, which I put in a "special" raid mode called recovery, so it's kind of like a mirror. When installing ubuntu ...
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98 views

raid mdadm “active,resync” after reboot

I created a raid1 (Intel RST + Ubuntu Server 64Bit). I waited until the mdadm status of the raid changed to "clean". All worked fine. But I noticed that after every reboot, mdadm shows "active,resync ...
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How to fix RAID1 array by mdadm with script?

In system works two RAID1-arrays madadm. There is one reserve disk to change faulty disk. I need to write a script which will be monitoring disks and automatically fix degraded array. How do you ...
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242 views

mdadm raid1 boot error

I created a RAID with Intel-Rapid-Storage(RST) - containing 2 3TB HDDs. Then I installed Ubuntu Server 14.04.1 64Bit. Everything worked fine and then I did a reboot. Then I got the following error ...
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270 views

Move RAID 1 Array to new system

I am rebuilding my Ubuntu home server, but I want to preserve my two disks currently in Linux software RAID 1. My current config is: One 240GB HDD configured as OS Disk (Ubuntu 12.04 LTS) Two 3TB WD ...
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48 views

Will the boot-degraded flag remain after upgrading to 14.04?

I am currently running Ubuntu 12.04 and have a RAID setup with the boot-degraded option. If I upgrade to 14.04 will the boot-degraded option remain? I manage this server remotely and would hate to ...
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706 views

MDADM RAID1 Home Server System disk error: incrementally starting raid arrays mdadm: Create user root not found

I'm not sure what else to check. Everything below looks sane to me but the system hangs on boot. This is a home server with four disks crammed into a Dell OP620. Each pair of disks are assembled as ...
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88 views

USB 3.0 ExternalEnclosure Unmounts at random

Title says it all. I noticed the drive was unmounted, so I got to looking through dmesg and found: [31080.516164] usb 4-3: USB disconnect, device number 3 [31080.760493] usb 4-3: new SuperSpeed USB ...
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153 views

OS - Does not Show 100% HDD Capacity

I am from Dell Technical Support -- One of our customers has a Dell System Model T5610 and has installed 2-256GB SSD HDD and 2- 4TB HDD and Configured RAID-0 of 2 Arrays on Intel Based Chipset ...
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129 views

Boot repair on raid after crashed system-upgrade

I found it difficult to find an answer to this problem without specific step by step advice. During an Ubuntu system update an error occurred and it froze my PC. After a forced shutdown I encountered ...
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104 views

Ubuntu 14.04.1 install on Areca ARC-1883i - kernel detects partitions, installer sees no disks

I have a strange one here - when installing the kernel load detects my RAID controller and looking in the F4 debug screen, I can see it also detects the two volumes there. When I come to the part in ...
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44 views

Why do I see permanent disk activity on my software raid partition (/home)

I installed Ubutu 14.04 server with this partitioning: / on an SSD /var and swap on a single SATA drive /home on a software raid1 consisting of 2 SATA drives. I switched all partitions to noatime. ...
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69 views

My VirtualBox VMs Virtual Disk Folder are missing after reboot

I using VirtualBox in Ubuntu 12.04 64 bit and yesterday one of my windows guest got bluescreen so swithed off my guest. After restart it won't start, when I saw the guest virtual disk file and folder ...
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2k views

Setting up RAID 1 on 14.04 with an existing drive

I have a currently installed Seagate ST3000DM001 (about 90% full) and a new Seagate ST3000DM001 (blank). I would like to setup RAID 1 without losing the data on my currently installed drive. If I ...
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556 views

Creating a RAID1 Array, “Disk doesn't contain a valid partition table”

I'm trying to create (two) software RAID1 arrays on two identical 4TB non-boot drives. I'm following advice from several forum posts but keep running into trouble. Here's what I've done so far: for ...
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238 views

How to make Intel fake RAID 0 volume appear on boot with Ubuntu 14.04 in a multi-boot environment?

I have a computer with a Gigabyte GA-Z97N-Gaming 5 mainboard, a 256 GB drive for booting and two 3 TB drives meant to use in a RAID 0 setup with both ext4 and NTFS partitions. We are planning running ...
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362 views

Ubuntu installed /home to visible RAID array, but can't find it on boot

I'm using the Desktop version of Ubuntu 14.04.1. I started up the liveCD, installed mdadm, and created a RAID 1 array on a 3 TB HD. I then restarted, went directly into the installation menu, and ...
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data distribution after adding additional disk in raid 5

"I had set up raid 5 by equal capacity with 3 hard disks in ubuntu 12.04 and I need to perform scaling.After adding 1 disk,how to monitor the data distribution and possible inputs.Is it possible?"
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Ubuntu 14.04 desktop and RAID

I have 2 128GB SSDs on Asus Zenbook. I tried to boot into Ubuntu live CD (try Ubuntu) and create RAID from: Then tried to instal uUbuntu, but it fails to install grub on RAID. Another solution I ...
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314 views

How to install Ubuntu server 14.04 on LVM RAID?

I want to try install ubuntu on LVM RAID logical volume, but fail on step grub installation. There are my steps as below: 1. use three HDDs called sda, sdb, and sdc to create a volume group. 2. ...
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How to setup a Ubuntu Raid to be accessed by the Domain Active Directory Server

I'm new to this. I have setup a Ubuntu 12.04 server on a Dell PowerEdge FS-12. I have setup a large area on the FS-12 (raid 50) to replace one of the drive mappings on the windows 2003 server. I ...
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27 views

Dual boot ubuntu with raid configuration

I have a pc currently running on windows 7 with following specifications: Intel Core i7 CPU 930 @ 2.80 GHz Installed memory RAM: 6 Gb When configured it was RAID and showing 2 partitions, But when I ...
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28 views

How to make RAID1 on running ubuntu 12.04

I want to make RAID1 on a running linux I installed the Ubuntu server 12.04 Then, I installed the backuppc software. I installed the OS on a HDD with 160GB of storage So, I want to put another 2 x ...
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214 views

RAID drive not detected by Lubuntu installer

I wanted to install LUbuntu on a old computer: a P4C 2.53GHz asus P4PE 2go RAM with a WD raptor 36go (sata) as system disk and a maxtor damondmaxplus8 40Go (uata). Currently Mageia 4 is installed ...
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Unabel to open another HDD with Ubuntu 14.04

I'm new to Ubuntu. I have installed Windows 8.1 next to Ubuntu 14.04, on one HDD. This first HDD working fine, I can access to my windows file etc. But I have another HDD named "Maya" where I have ...
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Basic question about RAID/FlexRAID

I have an Ubuntu Server install (14.04.01) that I have been using for about 1 year. Its mostly used as a Samba and Plex server running off one 3TB hard drive. I purchased two more drives with the ...
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96 views

Fresh install of 14.04 server edition doesn't boot

I've installed ubuntu 14.04 server, but on power-up I get the error message "Reboot and Select proper Boot device", even though I've set boot priorities correctly. The server is going to be a NAS. It ...
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1answer
294 views

OVH - Dedi 14.04 Server - Raid Reconfiguration Help for a Total Noob

I am a linux noob and have been saddled with a problem far beyond my abilities. My situation is this: This box: http://www.soyoustart.com/us/offers/bk-24t.xml (6x4TB drives) OVH image based ...
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42 views

Can't Reboot mdraid

I just created a raid 0 array with the following commands: # Install the necessary packages sudo apt-get install xfsprogs mdadm -y # Create the RAID 0 array. mdadm --create --verbose /dev/md0 ...
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80 views

Create a RAID5 on my Ubuntu Server 12.04

I have an operational Ubuntu Server 12.04 with only one HD (1Tb). I need more capacity and stability, so I bought last week 3 HD(1Tb each) to make a RAID5 and migrate the information of the old HD to ...
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100 views

Extra RAID array keeping disks busy

I have a software RAID-5 with 5 disks (Seagate ST31500341AS). SMART was saying that one was at risk of IMMINENT FAILURE. I replaced it with a new disk, also a 1500GB Seagate. The array wouldn't start ...
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Ubuntu 14.04 Server with RAID 1 and Windows 7 for file backup

I have an Ubuntu 14.04 Server with RAID 1 with 250GB (2 x 250GB). And, on my notebook, I have Windows 7. Ubuntu Server shows up on my notebook but won't copy/move any of my files that I want to ...
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179 views

Degraded mdadm RAID5 array & ARRAY UUIDs mismatch (Ubuntu 14.04.1)

Every reboot on my server results in a halt due to a degraded RAID5 (software) array. The same drive /dev/sdc appears to be dropping out each time. I ignore and boot with a degraded array any ways. ...
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299 views

Cant install Ubuntu alongside Windows 7 on HP 650 - Cant recognize Windows partition

I have a notebook HP 650 and I removed Windows 8 to install Windows 7. I have disabled Secureboot and installed Win7 successfully. When I boot Ubuntu live cd, the installation manager is unable to ...
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501 views

Problems booting from software RAID

TL;DR: created RAID 1 at installation of Ubuntu desktop but it won't boot after seemingly successful installation, although boot utility seems to indicate that GRUB is installed I am trying to set up ...
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155 views

Help fdisk 4 (near) identical 1TB drives

I have 4 drives to setup a Raid 5, but apparently they are not identical. I am not sure what steps to take next. It seems that I have (3) 512 and (1) 4096 sized drives. What should I do to format, ...
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1answer
585 views

Installing Ubuntu Server 14.04 on a pre-built RAID Array

So I've got a RAID array built (Via the ASUS motherboard, 2 disks, RAID 1). When I try to install Ubuntu server on it, the process runs as normal (Apart from the drive is detected as md126p1 rather ...
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38 views

I lost my raid…(it won't load)

After plugging in an extra drive I lost my raid drives. In the drives GUI it shows all of the raid drives as connected but when I go to start the raid it says: /dev/md/Storage assembled from 1 ...
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26 views

Raid Scaling using MDADM

I have 3 equally-sized hard drives. I would like to use mdadm to do software RAID scaling on these. Is this possible in Ubuntu 12.04? Is there another tool I should use?
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how do i setup raid on my harddrives

yes hello I have 5 2tb hard drives in my computer I use it to record TV as a DVR for my TV one 2tb section has Ubuntu 14.04 on it. I would like to use all the hard drives for TV show. how do I do this ...
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88 views

format/build raid 5 with one 4k drive, three 512b

I have 4 WD 1TB drives which I want to 4x1TB Raid5. I am not sure what course of action to take next. How do I configure my 4th drive (sde) to align with the rest? Will this affect performance? I ...
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49 views

Installation with FakeRaid

I have a problem while installing Ubuntu on my laptop. Actually, Windows 8 is installed with a raid0 managed by the Intel Rapid Storage Technology. At first, I tried to install without delete this ...
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57 views

Installing Ubuntu 14 Server x64 on Intel Array 1 system

I have a server with Intel i7 technology. It comes with 2 hdd (2tby each) and I configured (using bios) as RAID1 (mirroring) When I started Ubuntu Server installation, it recognizes the array, asked ...
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Multiple Independent BTRFS Volumes

I have 4 x 2 TB drives. I want to set up one pair as a BTRFS RAID 1 volume, which I have done. I want to set up the second pair as a RAID 0 data, RAID 1 metadata volume, which I have not been able to ...