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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Put HDDs in standby after X minutes using hdparm doesn't work

I use Ubuntu 12.04 on a home server. There are 5 hard drives: one SSD with the OS and 4 HDDs (Samsung HD204UI) configured as a RAID5 using mdadm. I don't need the RAID very often (say, about once per ...
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1answer
1k views

mdadm trying to resync/rebuild array automatically

Previously I had setup a ubuntu server using mdadm with 4x 2TB drives. One of my drives died and since this was my backups of my data on different servers I didn't care about losing it. Since then, ...
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2answers
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Do I have to worry about “error: superfluous RAID member”?

When running update-grub on the newly installed Ubuntu 12.04 with an older software RAID (md), I get: error: superfluous RAID member (5 found). error: superfluous RAID member (5 found). Generating ...
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1answer
6k views

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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2answers
8k views

Ubuntu 12.04 installation on GPT + RAID going into grub rescue [closed]

I have two 2TB disks. I am installing Ubuntu 12.04 using the alternate version of the server cd. On the partitioning page I have done my partitioning as follows /dev/sda1 - 32 MB - bios_grub ...
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1answer
625 views

grub installation in fatal error in jbod disk setting

so i have this jbod drive, with two different partition partition A is for windows while B i would like to have ubuntu 12.04 in it however at the end of ubuntu installation, there is an error ...
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2answers
3k views

Ubuntu 12.04 + Raid0 + Windows 7 not loading

please someone help me.... (Sorry for my english) Hi, I have a Pc with 2 Hd (1Tb each) on Raid0. I had a Windows 7 64bits working for several months. When I installed the Windows I let a 100Gb ...
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1answer
2k views

ubuntu 12.04 cant install dual boot on raid0, installer cant detect windows7 [duplicate]

I just downloaded the .iso and launched it on a live USB. Im actually writing this from the live session. I want to install ubuntu 12.04 along with my windows 7. I have my system set up with 2x1TB ...
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3answers
2k views

get rid of software raid

We are running software raid1 using MDADM on ubuntu 11.04. What's the best way to get rid of it Keeping the current system ? I want to use hardware raid instead. What I tried to do: -Copied the ...
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1answer
665 views

Ubuntu raid configuration lost after reboot

I have a JMicron raid controller on the motherboard, and I have a menu in which I can set RAID arrays when the system boots. I've set it to RAID-1 and added my two identical 2TB disks (the OS disk is ...
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1answer
2k views

Installer Only Recognizes 801GB of a 3TB RAID1 Array

I've been searching as best I can for this precise problem, but the only place I found it exactly was here, and I don't think that the OP ever got an adequate answer. Most of the issues I've seen ...
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0answers
552 views

Raid destroyed after upgrading ubuntu to 12.04 from disk [closed]

I ran the upgrade from the iso and after booting my raid 5 array no longer appears to exist. I will admit to on caveat that I was upgrading what was technically initially (months ago and before many ...
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1answer
7k views

Disks constantly spinning no matter what I do (jbd2). I'm on the brink of insanity

My disks have been spinning for months. It started with Ubuntu 11.10, and continues with 12.04. I can't figure out how to stop it. I've looked at various folks suggestions online about ext4 commit ...
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1answer
854 views

Two SSD in Thinkpad W520 and Internal RAID - Not Enabled

Looking for some suggestions: I have bought a Lenovo Thinkpad W520 with a SSD of 160 GB. windows 7 came as a default OS. My Storage subsystem has "Internal RAID Not Enabled". I want to replace my ...
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1answer
2k views

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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0answers
769 views

How to install Ubuntu server 11.10 with SATA-RAID on Fujitsu-Siemens Primergy TX150 S7 server? [closed]

I have FSC Primergy TX150 S7 and I need two SATA drives to be in soft-RAID mode. I want to install Ubuntu server 11.10 on this machine. But when I run installation, I can't see any disks when RAID ...
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1answer
14k views

How to modify/fix incorrectly detected dmraid (FakeRaid) RAID 10 array

I'm trying to get dmraid to properly detect an existing RAID 10 array, which is working fine within windows 7. In summary, the drive setup and bios partitioning is as following: 2 x SSD (120 GB), ...
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3answers
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Win7 -> Ubuntu 11.10 - Win Dynamic Disk Raid 1

I imaged my win7 system disk via ntfsclone + dd (mbr) to one of my Win7 Dynamic Disk RAID1 disks from within the Ubuntu LiveCD instance (only wrote to one of the disks in the win7 RAID1 array). I did ...
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3answers
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Megaraid SAS Raid Controller

I have about half a dozen servers all running the Intel RS2BL080 raid controller on Oneiric server AMD64. It works fine using the megaraid_sas kernel module but when I try to use megacli to probe the ...
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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 ...
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2answers
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Device or resource busy errors when setting up a RAID array

I'm trying to create a Raid array and these are the errors I keep getting. I have repartitioned the drives several times. root@BitchStewie:/dev# sudo mdadm --verbose --create /dev/md1 --chunk=64 ...
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1answer
125 views

Twice the amount of drives show up when setting up a RAID array

I am trying to set up an array, with ubuntu. I have hooked up an array containing 12 drives of 1TB, but when I run the following command, it returns 24 - 1TB drives. What's causing this, and ...
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2answers
385 views

What is Ubuntu's software raid controller partition size limitation?

Does anyone know what the partition size limitation is for the Ubuntu software raid controller? If its 2TB, does anyone know how to increase that limitation to 3TB? This is in regards to a question I ...
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3answers
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What should the total space be for 4 3TB Drives in RAID10 configuration?

I just configured 4 3TB drives in a RAID-10 configuration but the total disk space in the RAID is 4TB. I used the following guide to setup the RAID-10, RAID-10 Intall. Shouldn't the size if the ...
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0answers
217 views

How to implement RAID 1 on Ubuntu 11.10 desktop? [duplicate]

Possible Duplicate: How to implement RAID 1? How to set up RAID 1 [software, hardware or fake] on Ubuntu 11.10? Can it be done through Unity?
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1answer
749 views

How to setup a RAID with 2 hard drives

I have 3 hard drives, 2 of which I want to set them up as RAID. I understand that one of the RAID types (Do not know if it is RAID-0,1..6) improves performance by using 2 hard drives simultaneous. The ...
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2answers
721 views

raid 5 name changing during reboot

I left my server running all night 'recovering' after i built a new raid 5 array using the command: mdadm --create --verbose /dev/md0 --level=5 --raid-devices=3 /dev/sd[bcd]1 My server spent all ...
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1answer
249 views

Why is new raid 5 build 'recovering'?

I am building a home server with raid 5. I first set up the system to boot from compact flash. After i got that working I tried to create the raid 5 array. All disks are new and have no data on them. ...
0
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1answer
498 views

Install Ubuntu side by side with Windows 7 on existing RAID 5 array

I've got Windows alreay installed on Raid5 array with 3x1TB HDD. I want to install Ubuntu on one partition in this array, but Ubuntu Setup doesn't recognize the array. All that I have found is ...
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1answer
307 views

Will new ubuntu install be able to read/write to software raid 5 array created by a previous install?

I would like to install ubuntu server on a usb drive and then boot from that usb drive. I want to create a software raid 5 array out of the 3 x 2TB hard drives in my computer which I will use for my ...
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1answer
904 views

Replaced drive in RAID array--now can't boot?

I have a home server running 10.04 configured with an mdadm-based RAID array. The boot and /home partitions are both on RAID-1 arrays, and I have a large data partition on RAID-5. There are three ...
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2answers
1k views

How to know when a drive failed in RAID1

I want to make sure my backup are safe. I use one main SSD running Ubuntu and I have 2X 2Tb HDD in RAID1 for my data. How to know when a disk fail?
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4answers
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What to do about a corrupted ZFS Pool

Have been running a test instance of a NAS using a ZFS as mentioned in Restoring an Ubuntu Server using ZFS RAIDZ for data. This week one of my disks died. Shouldn't be a problem, should it (the ...
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1answer
357 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? ...
0
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1answer
501 views

Install Ubuntu dual boot with Windows 7 in a JBOD array

Some weeks ago I decided to try ubuntu on a Virtual Machine, and I really like it! Then, some days ago, I tried to install it on my computer, together with Windows 7. But, now, I have a problem. My ...
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2answers
2k views

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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1answer
182 views

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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1answer
663 views

Recover mdadm raid5 from disk images

My computer just died (won't turn on) and I had some data saved across 4 raid5 disks configured with mdadm. I don't have another computer with sata controllers and want to try to recover using my ...
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1answer
463 views

Do I have a raid or not?

I am building a new (power) system. MOBO is a ASUS Sabertooth 990FX. I've installed: 1 500GB HD for the OS and user accounts (mounted at /) Three 2TB drive set up on the BIOS as a single raid0 ...
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1answer
88 views

View Files from mirrored RAID outside the device

The Product I have is a Western Digital My Book The device has stopped working but there is nothing wrong with either of the two mirrored drives. I would like to take out the two mirrored hard ...
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0answers
106 views

How to install 11.10 on Sun V65x (potential aic79xx issue) [closed]

I have a Sun V65X which I believe has an internal Adeptec AIC7902 H/W Raid Controller. I have installed Ubuntu 11.10, and the symptom is that the system goes through the h/w checks, post, and then ...
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2answers
5k views

How to install using btrfs in RAID10 mode?

As a test I want to install Ubuntu 11.10 onto a btrfs file system in raid10 mode. However, I have no clue on how I should go about that. I have tried the installer, and then creating the fs in the ...
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2answers
5k views

How to convert a btrfs file system in raid1 mode to raid0?

I've install Ubuntu 11.10 with btrfs as the / file system (was a bit of a mess to do, I'll explain if people are interested) so I can expand the primary file system into the second drive on the ...
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1answer
103 views

can i have two seperate fakeRAID disks with two seperate controllers? [closed]

I have a nv and a sil3114 SATA controllers, each has a bios setup Raid 5 that Needs to be shared with windows... but i cant get either to work after trying what seems like everything. ...
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1answer
2k views

Resizing partitions on a RAID 0 Array by command line

Oh boy this is a qustion and a half. Simply put when i set up the server it wasn't intended to be used for what it is now, and root (/) has run out of diskspace, while /home has tonnes of the stuff ...
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3answers
2k views

Sharkoon 5-Bay RAID Box, will it play?

I'm looking to expand the storage capacity of my home server running on Ubuntu Server Edition. Because the server is a small sized mini-ITX cube with room for only 1 HDD, I had the idea of installing ...
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0answers
474 views

Raid won't mount on boot after reinstall [duplicate]

Possible Duplicate: MDADM Superblock Recovery So I was having a lot of trouble with Ubuntu after upgrading to 11.10. I decided to do a clean install, and things seem to be much better. ...
4
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1answer
2k views

SSD + TRIM + ext4 OK. What about LVM and RAID?

I've read that SSD TRIM is now supported in the recent kernels with ext4 too (see How to enable TRIM? ). Is it OK/safe to enable TRIM when having a) LVM b) RAID1+LVM? Thanks!
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2answers
222 views

Reformat soft RAID-5 Ubuntu [closed]

I built a linux (Ubuntu) box a year ago and decided to have some fun and use a soft RAID 5. I followed the instructions here. Things seemed to work fine, but now it's time to reformat the computer ...
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2answers
947 views

How come 11.10 doesn't come with some of the applications from 11.04?

I have a fresh install of Ubuntu 11.10 (oneiric) on a RAID stripe. In order to install on a RAID I had to use the Alternate Installation (ubuntu-11.10-alternate-amd64.iso) I noticed off-the-bat that ...