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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How do I properly access Windows software RAID 0?

I am a new Ubuntu user with a fresh installation, and am eager to get started with it. However, all of my important data is on Windows software RAID 0 array, and I need it to stay there as I'm also ...
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657 views

Recover data from RAID1 array (My Book Live Duo)

I have a WD My Book Live Duo device which I used as a network drive with a RAID1 configuration. The device, which was working flawlessly for almost 2 years suddenly stopped working, that is; it was ...
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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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Recovering a degraded RAID array

I was just given an external hard drive by a colleague, with the comment "Hey, you're running Ubuntu. Maybe you can recover some of the data from this really old disk that nobody knows who last used?" ...
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S.M.A.R.T. test reports defect, can I re-initialise the drive?

On my server I have a 4 disk RAID-5 configuration. One of the drives fails the S.M.A.R.T. test. The array has not yet been declared as degraded but the disk shows up as needing replacement. I don't ...
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525 views

Home Microserver using Ubuntu and ZFS: about ZFS

I see this topic is quite a popular ([1], [2]) so hopefully I can get nice feedback on what I'm trying to do. I'm buying an HP Microserver with 4x 2TB, and I currently have two computers. I'd like ...
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Installing Ubuntu with Software RAID 10

I just set up Ubuntu 12.04.3 Server LTS with software RAID 10. Here's the steps I followed for setting up RAID: 1) Automatically partition one of the drives in order to determine the sizes of the ...
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hpacucli on HP ProLiant DL320e Gen8 with Ubuntu 12.04LTS 64bits

I'm trying to get working the HP Smart Array utility "hpacucli" on a ProLiant DL320e Gen8 server since it's officially certified. The program is installed successfully (I followed this guide) but ...
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140 views

Raid drives are missing filesystem

I recently had to do some troubleshooting with a RAID 5 on Ubuntu Server (a software raid). I ended up removing everything and start from scratch with 2 new drives. So I took out 2 out of 4 drives, ...
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130 views

How do I change volume sizes on Ubuntu Server 12.04.3 without reinstalling?

I have a HP DL380 G7 Server with the HW Raid configured at Raid 1+0. Previously, I have 146GB LFF SAS Installed but I since have upgraded to 600GB LFF SAS Drives. Since the Mirror Rebuilding was ...
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633 views

RAID1 array lost after upgrade from Ubuntu 11.10 to 13.04

I had a working Ubuntu 11.10 with / on an SSD (/dev/sdc) and /home on a software RAID1 array that resided on two partitions on /dev/sda and /dev/sdb (identical drives), respectively. This was set up ...
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590 views

What happens if a HDD of my RAID1 setup fails?

I have the following setup: Filesystem Size Used Avail Use% Mounted on /dev/sda1 37G 1.1G 34G 4% / udev 1.6G 4.0K 1.6G 1% /dev tmpfs 651M 348K 651M 1% ...
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191 views

Two different SSD drives, which one to mount for home?

I've had a 128GB toshiba SSD on my T400 and have just bought a new 240GB intel SSD (335 series). I want to have a clean new dual boot install of ubuntu and windows 7. With my SATA II system, the new ...
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594 views

How to solve Critical Logical Driver

I was checking the logs in server when i came across this message. Nov 4 12:52:05 SERVERNAME ServeRAID Manager Agent: [338] Periodic scan found one or more critical logical drives: controller 1. ...
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Running Windows 7 64bit on Raid 0

Can I install ubuntu 12.04 alternate from the CD (Full Complete Install) without tearing down my present Raid Configuration?
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Raid 1 can't install Ubuntu 12.04

I am trying to install Ubuntu desktop on HP Compaq 8000 from an Ubuntu live CD. I connected two disks in RAID, but in installation type, I can't select nothing.
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How to fix the device names of USB storage devices?

I would like to try building RAID system using two or more USB drives for just an experiment. But, the device names of USB drives will be changed whenever they reput or the system reboot. For ...
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2k views

Failed install 12.04 on Intel Hardware Raid with Large Partition (> 2TB)

I have Intel Hardware Raid on the motherboard. I have 10 2 TB HDD that I've configured as RAID 1+0 to be one big 8 TB HDD. Now I'm trying to install ubuntu 12.04 on it. After installing with ...
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MDADM Raid 0 won't mount: one drive has bad superblock

I'm quite new in the world of Linux and software-raid but I encountered a problem in which I hope you guys can help me. Few days ago the system was not shutdown properly and when I booted the mdadm ...
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Raid Shows Up as Multiple Drives - Can't Mount

I have a single hard drive that the OS is installed on and I have Sil raid card installed with two matching 500GB hdds set up in Raid 0 and formatted- they're completely empty. For whatever reason ...
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335 views

Install Ubuntu 10.04 on ICH6R RAID 1

I have a machine running Win7 in RAID 1 Mirror Array. I want to install Ubuntu 10.04 along Win on this machine. Can someone point me in the right direction. Will Ubuntu recognize this automatically? ...
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Server stuck at black screen after reboot

I recently put together a new server running Ubuntu Server 11.10 and it's all working great except for one little detail. Whenever I run "sudo reboot" everything works fine until I get to the grub ...
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Installed Ubuntu on a separate HDD, got a grub error and want to know if anything went wrong

I installed Ubuntu on my spare HDD and everything was going fine until the setup installed GRUB. I have 3 HDDs in RAID0 and a spare HDD where I chose for Ubuntu. The error said that GRUB cannot be ...
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Add new hard drive to mirror existing LVM drive with raid1

I have a 320GB hard drive with an LVM2 volume group that was created as part of the default installation. If I put a second 320GB hard drive into the computer, can I make the second drive mirror the ...
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779 views

Grub can't find RAID partition in fresh install of 11.04

I attempted to install 11.04 on a Dell PowerEdge-R610 that has a LSI SAS1068E-based hardware RAID setup (I think). Installer finishes without a hitch, but upon reboot, it appears that Grub can't find ...
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588 views

Installing 10.04 server on HP xw9400 Workstation with RAID 5

I have a workstation that was given to me that is a friggen powerhouse, so I figured I would set it up as my development and demo server. This is my first experience installing Ubuntu onto a RAID ...
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735 views

How do I fix a slow boot on a RAID setup?

I've just finished setting up a RAID 1 on my system. Everything seems to be okay, but I have a very slow boot time. It takes about three minutes between the time I select Ubuntu from GRUB and the time ...
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263 views

What does “md value mismatch_count” count?

Since upgrading to 11.04 I have been trying to get my 5 disk RAID5 array back online. The array was initially split in two, I tried to use a create command with the assume clean option to get it back ...
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724 views

Raid md device is not remove from memory, how to overcome this problem

I create raid 10 , i removed two arrays form md11 one by one , after that i going to editing the contents those are mounted ( it will be not responding stage), after i try for remove arrays those are ...
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How do I know what physical drives/partitions are behind my /dev/mapper/isw_dghbbcaabe_RAID_Volume11?

This is a just upgraded Ubuntu 10.04.1 LTS machine. The /dev/mapper/isw_dghbbcaabe_RAID_Volume11 is "new" to the upgrade but I don´t know what physical drives/partitions are included in the "device". ...
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How to fix boot message [RAID partition] not ready yet? [duplicate]

Possible Duplicate: mdadm: breaks boot due to “is not ready yet or not present” error I've got a RAID 5 setup for my /home partition. Every two to three boots my hdisks don't ...
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Backing up or mirroring my existing hard drive

I'll try to keep it short - I have windows 7 and ubuntu 14.04 LTS installed. Windows has recently stopped working (involving all kinds of messages during start up that say that my hard drive is ...
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160 views

/dev/disk/by-uuid/XXXXX does not exist dropping to a shell

I have just installed ubuntu 14.04 and when I reboot and remove the media I get the Gave up waiting for root device. Common problems: -Boot args (cat /proc/cmdline) -check rootdelay= (did the ...
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112 views

Setup FakeRaid Raid1 for data only for Ubuntu 14.10 and Windows 7

I want to create a FakeRaid RAID1 array of two hdd's that are being used only for data, no OS's on them. My OS's are Ubuntu 14.10 and Windows 7 which are each on seperate hdd's. Almost all of the ...
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Official Installation Documentation?

Is there an 'Official Ubuntu Linux Documentation' Page on the topic of (How to correctly go about) Manually Partitioning for an UEFI install of Ubuntu 14.04 LTS (and later) During the “Something Else” ...
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Mdadm Raid 5 Array with 2 Failed Drives

My setup is as follows /dev/sdb/ /dev/sdc/ /dev/sdd/ /dev/sdf/ I have the following 4 1.5TB drives in a mdadm raid 5 array. One of the disks (sdb) died on me leading the array to start up running ...
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63 views

Rebuild Windows RAID 0 for permanent use in Ubuntu 14.04

My old PC (Core i7 920, Asus P6T-SE, 6GB RAM) recently suffered a motherboard hardware fault. The 2TB RAID 0 array containing the Windows installation and mostly media library was no longer ...
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85 views

Ubuntu OS on SSD and RAID-5 for data files

I want my NAS to run a lot like Freenas or Nas4free in that I have a separate drive for my OS and all other files (like WWW, media, plex media server and minecraft) run off the raid-5 (3*3tb WD reds). ...
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Guidance on moving a raided / to a new set of disks

Running Ubuntu 14.04.1 up to date. Besides a ZFS pool I'm using for my data, I have my root partition on a mirrored software raid, and would like to move to two larger disks. Here is my parted ...
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Will a fresh installation of Ubuntu recognize two drives that have been in a RAID?

I have a computer with three hard drives - one is the boot drive and the other two are in RAID1. The RAID is software RAID created during the Ubuntu installation. If I reformat and reinstall Ubuntu on ...
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How to setup device mapper RAID on LVM on Ubuntu 12.04

I have read that LVM can be setup as raid without using mdadm. I have setup LVM with two physical HDD and would like to set up RAID1 but I can't find any guidance. Is there any documentation on how ...
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187 views

How to add software RAID-1 to an existing non-RAID system?

I couldn't find any tutorials for converting a non-RAID system (Ubuntu 14.04 in my case) into a disk-level RAID-1 system after installing a second disk (/dev/sdb) Is the following correct? sgdisk ...
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51 views

Unable to access a Drive

I am new to this platform so I don't Know much about Ubuntu, Now I have installed the latest Ubuntu version that is Ubuntu 14.04.1 LTS (64 bit), I already have windows 8 installed in my PC and I have ...
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LUKS on software RAID not mounting on boot

I am trying to setup an encrypted disk using LUKS on a software RAID that was setup using mdadm on 14.04.1 LTS (GNU/Linux 3.8.13.26 armv7l) (Odroid U3). The problem is that the LUKS container is not ...
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Install Adaptec RAID 6405 on Ubuntu 12.04 (3.13.0-37-generic)

I'm trying to install an Adaptec RAID controller on Ubuntu 12.04. So far, I've downloaded different versions of the driver, but executing the specified commands yields some errors. sudo dpkg -i ...
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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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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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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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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 ...