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.

learn more… | top users | synonyms

0
votes
1answer
18 views

RAID in Ubuntu 14.04.1

I'v been red about how to create RAID partitions during installations but it seems to need "alternative installation CD". Unfortunately, there is no download link for alternative ubuntu 14.04. Why? Is ...
0
votes
1answer
19 views

How to report a bug to the installer?

I'm trying to install Ubuntu server on an old Mac workstation with EFI firmware, and I'm trying to use software raid for the root partition. The installation aborts during package installation(maybe ...
3
votes
3answers
51 views

Serious RAID problem that panics system

System: Dual Xeon E5-2630 CPU, 32GB RAM, Primary disk is a SATA-III 512GB Crucial SSD OS: Xubuntu 14.04.1 I am having a serious problem with RAID on this new system and hope some of you can provide ...
0
votes
1answer
58 views

mdadm doesn't seem right

I watched a youtube video where a guy made a raid 1 with 2x 2 gb usb drives. I am using 2 x 3tb disks to have a raid 1 mirror. My concern is my sdb1 size=-1364702208K sdd1 size=-1364702208K. which is ...
0
votes
0answers
8 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 : ...
0
votes
1answer
1k views

2 TB Hard Drives and RAID 5 in home server

I recently converted my home media server from Windows Server 2008 to Ubuntu 11.10. Right now, there is a single WD20EARS 2 TB hard drive formatted as NTFS that's about to run out of space. I'd like ...
0
votes
1answer
13 views

File recovery data copy

This is my first time using Ubuntu, and I'm using it to recover data from the drives of my dead READYNAS. The commands used to access/mount the RAID were obtained from here: ...
0
votes
1answer
33 views

How can I recover my RAID 5 array after removing 3 or 4 of 7 disks?

I'd like to undo what I've mistakenly done. From Disks I removed 4 of 7, 2 TB disks from the software RAID 5 array. I am unable to bootup and come to this: error: disk 'mduuid/long UUID number' ...
1
vote
2answers
36 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). ...
0
votes
1answer
22 views

raid10: can't read superblock

Up until a few minutes ago I had a functioning raid 10 device (/dev/md0) consisting of 4 x 3TB disks. My operating system (headless ubuntu server 14.04.1 lts) is mounted on a 120GB SSD seperate from ...
0
votes
1answer
71 views

Installing Ubuntu 14.04.1 LTS with hardware RAID

I have been having some issues with trying to install Ubuntu off of a live usb. The system has a Intel hardware RAID controller and I wish to run my two HDDs in RAID 1. I have come across and issue ...
0
votes
1answer
66 views

GRUB Bootloader not loading with Software RAID1 on Fresh 14.04 Server Install

I've looked at all of the forums, and tried doing multiple fresh installs and continue getting the error "Unable to install GRUB in /dev/mdx - This is a fatal error" My current setup is 2 2T drives, ...
0
votes
2answers
4k views

XFS File System Fails - Can't read Superblock

After this (Iomega Home Media disk corruption - data recovery help asked) problem solved... i have a new one.. I'm trying to understand why my Iomega Home Media Stopped working, and need for that to ...
0
votes
0answers
25 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 ...
4
votes
1answer
4k views

How to re-add accidentally removed hard drive in RAID5

I have a NAS on Ubuntu Server with 4 2TB hard drives in RAID 5. A couple of weeks ago, one of the hard drives died, but my RAID was working, although degraded. Luckily it was still under warranty and ...
0
votes
2answers
1k views

Dual boot Windows 7 UEFI Raid with Ubuntu 14.04 Grub2 Problem

I used the intel Raid 0 to raid SSD #1 and #2 on raid 0 for video editing work, everything was good.I installed windows 7 64bit on an asus x79 deluxe motherboard on these raid 0 two ssds using ...
0
votes
0answers
8 views

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 ...
1
vote
1answer
1k views

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?" ...
1
vote
1answer
21 views

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 ...
0
votes
2answers
71 views

grub fails to install to MBR (RAID+LVM+LUKS)

Please note the edit at the end I'm building a home server (my first attempt at it) using Ubuntu Server 14.04.1 on an old machine (BIOS doesn't support UEFI), and I want to set up the whole system on ...
0
votes
0answers
82 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 ...
0
votes
2answers
18 views

Is there anyway to undo wipefs?

So I (very stupidly) performed a wipefs on my XFS formatted 4tb Linux (software) raid 5 array in trying to convert over to a bcache setup (I was following some instructions online and should have paid ...
0
votes
1answer
3k views

Ubuntu 13.10 software raid

I had already Ubuntu OS installed on my desktop PC, where the software RAID 5 is configured ( 3 partitions /, swap and home ). This system was upgraded from the 11.04 till 13.04, it was quite messy, ...
0
votes
1answer
1k views

Recovery Data from failed Raid Disk - NAS

My Western Digital My World Book White Light NAS Drive stopped working. This has a single 1TB Disk. At first I started getting the following error: Volume Status - Volume 'DataVolume' doesn't exist ...
0
votes
0answers
34 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 ...
0
votes
0answers
29 views

ubuntu 12.4 server is stuck on blank screen after grub [duplicate]

server 12.4 64 bit installed with raid and lvm ubuntu 12.4 server is stuck on blank screen after grub. and in grub recovery server given below error system wait for the right device ? missing ...
0
votes
2answers
5k views

How to install software raid 0 on ubuntu 12.04 server with mdadm?

I need to install a software raid-0 array on a Ubuntu 12.04 server with mdadm through commandline (SSH). The drive setup is as follows: SDA = OS SSD SDB = HDD for raid 0 SDC = HDD for raid ...
0
votes
0answers
198 views

mhddfs constantly disconnecting (“Transport endpoint is not connected”)

I'm using mhddfs in conjunction with SnapRAID and it has started disconnecting the fuse drive at least once a day. I know I can unmount/remount for a quick fix, but I'm implementing this in a media ...
1
vote
0answers
27 views

update-grub fails on lvm cryptoroot

Disclaimer: I'm running this server now but I did NOT install it. I have two disks connected to an Intel Hardware Raid Controller running in RAID1. On top of it there is a fully encrypted 12.04 ...
0
votes
1answer
27 views

Can I mount two USB3 'flash' thumb-drives in a RAID configuration?

I am asking before I buy... I am getting a new Chromebook to run Ubuntu on. For storage I would like to use the two USB ports with a thumb-drive in each (I don't plan on using any other USB doodads). ...
0
votes
0answers
33 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 ...
0
votes
1answer
32 views

save failed software RAID array

I have a machine where the sata card failed and caused me to lose my raid array. I tested the drives externally and they are in good shape. I have moved the drives to a new machine (with enough ...
0
votes
2answers
4k views

Driver hp raid controller b120i

I have a problem with a installation of ubuntu 12.04 server on HP SL4540 with raid controller b120i. Ubuntu during installation does not recognize the raid controller, and displays the disk ...
0
votes
1answer
504 views

Ubuntu Server 12.04 on a ssd & data on RAID HDD

I'm new so please forgive me if i'm posting against the rules or something like that. I found some topics that are a bit related, but none with raid 10. I'm going to switch from Windows server to ...
1
vote
1answer
258 views

2-disk RAID array missing one disk. fdisk sees them both. Missing disk is “non-fresh”. What to do?

I have two physical 500 GB hard disks in my Ubuntu 12.04.4 PC and they are supposed to be in a 2-disk RAID array. However, mdadm -D /dev/md0 is reporting that /dev/sda seems to be inoperative, even ...
0
votes
0answers
18 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?
2
votes
1answer
5k views

How to Install Ubuntu 14.04 with RAID 1 using desktop installer?

Many people claim that it is impossible to install Ubuntu onto RAID 1 with the Desktop CD. Is this really true? If not, how can it be done?
0
votes
0answers
101 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 ...
0
votes
3answers
3k views

Why isn't md raid assembled after reboot?

I'm trying to get an Intel RAID setup. The problem I have is that after a reboot the raid is not available. These are the steps I go through to setup the Intel RAID using the mdadm command. I've ...
0
votes
1answer
71 views

Breaking boot-up Raid 1 array into two independent drives

I am running Ubuntu 14.10 which boots from two identical drives configured as a Raid 1. I would like to break up the array so to keep the existing data on one drive and use the second drive to ...
2
votes
2answers
64 views

Can I write data safely to a RAID-1 ARRAY while it is resyncing?

Will the files be in all drives on the array when the sync is complete? What if a disk fails while sync is in progress?
1
vote
1answer
60 views

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 ...
0
votes
1answer
183 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 ...
1
vote
1answer
29 views

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 ...
7
votes
2answers
5k views

How to set up SSD raid and TRIM support?

I am looking to set up a new server. I can only use Intel 520 Series 240gb MLC ssds or standard Seagate 7200rpm disks. These are the non negotiable options. Naturally, as this is going to be running ...
1
vote
2answers
5k views

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". ...
6
votes
2answers
135 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 ...
1
vote
0answers
508 views

Is there a fix for md raid failure on 12.04

I've got a system that ran cleanly on Ubuntu 10.04 LTS. Upgrading to 12.04 LTS / 12.04.1 LTS / 12.04.2 LTS has been unpleasant and unsuccessful. Install goes cleanly and I have installed as follows: ...
1
vote
0answers
106 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 ...
0
votes
0answers
70 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 ...