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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Bash script fault creating mdadm array

I am working on a script to create md1 array, first to check if the array exist if not it will create it. I get command as command mdadm not found and a few others. The script wont run. ...
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How to check if last command succeeded and make that command auto accept prompts?

I am working a script to create a raid5 array. The question is how to put the command in a if (to see if the command succeeded), and when the script ask to continue creating array it will auto say ...
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Bash script to check if mdadm is installed if not it will install it

Working on a bash script which first will check if mdadm is installed, if not it will install it. This is my script but it's not working correctly. Hope someone can help me. if [ "$mdadm" = "mdadm" ...
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Bash script to check if mdadm is installed if not install it

I am currently working on a bash script to create raid5 with 3 disks and one hotspare. I am confused of how to create a script which first check if mdadm exist, if not it will install it and name it ...
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24 views

Upgrade to RAID

I have a system running ubuntu server latest main version and I have it running on a single disk. I have installed another identical hard drive in the machine and I would like to convert this machine ...
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35 views

Realigning Ubuntu RAID - partition misaligned by 3072 bytes

I've run into this issue with the "Advanced Format" drives - and it is dramatically affecting the speed of the array. All resolutions I found seemed to deal with RAID arrays if Ubuntu was a part of ...
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md0 iscsi share target

I semi followed the following: http://www.server-world.info/en/note?os=Ubuntu_13.04&p=iscsi Current /etc/default/iscsitarget ISCSITARGET_ENABLE=true # ietd options # See ietd(8) for details ...
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Disabling windows only features (Intel SRT, etc) so I can install Ubuntu (Dell XPS 15)

I'm working on installing Xubuntu on a Dell XPS 15 and I trust this guide. It says I should do the following: Turn Secure boot off. Turn Fast boot off. Turn Intel SRT off. Remove RAID meta-data ...
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GRUB error with RAID when other HDD's exist

I had this exact issue with Debian. Grub has no issues loading at all as long as all of my HDD's are turned off except for my hardware RAID array. When there's more than just my RAID, it fails to ...
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Raid stability with Ubuntu

Im planning on building a Ubuntu box as a raid storage computer connected over a network to my other home computers. I have about about 4TB of data I would like to have on a secure backed up system, ...
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38 views

Sharing issues between Ubuntu 12.04 and win7

Background: I have an HTPC with a raid 5 array. This setup has been working for nearly 1 year without a single hiccup. Ubuntu 12.04lts is installed on a separate ssd within the HTPC. I have a pc ...
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Ubuntu Server Raid Swap

I installed Ubuntu server 12.04.3 LTS with RAID partition by installator, In free command swap is 0. root@xxx:~# free total used free shared buffers cached Mem: ...
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Syncing/Mirroring two partitions (Sata, USB) : RAID or not?

My 12.04 Ubuntu server has a 120Go internal SATA sda5, ext4 partition. I also own a 500 Go USB2 external hard-drive from which I could easily free 120 Go. Now, I've been meaning to set up mirroring ...
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mdadm: SSD+HDD RAID 1 [duplicate]

How do I setup a RAID 1 on mdadm between a SSD and a HDD, without loosing SSD reading speed and with boosting write-speeds of the HDD.
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When I mount my RAID5, there is constant activity; how can I figure out what it is?

there. I'm using Ubuntu 13.10 64bit. I have a 4-disk RAID5 (3 disks, 1 spare) setup, and it's completely synced/built, and the ext4 filesystem it contains is clean. When I assemble the RAID, all is ...
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213 views

Ubuntu Server 12.04 + Webmin, add hard drives to raid 6

the subject may already discussed, if this is the case, a reference would be much appreciated because I really searched and never found real answers to my questions. I have a Ubuntu 12.04 LTS Server ...
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22 views

RAID setup for small application server?

I want to setup a small application server running 12.04, mostly running bioinformatics tools. The box has 16GB of RAM and 12 core and 6x2TB SATA disks. I need a system partition of, sat at least ...
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Error installing Ubuntu Server 12.04.3 lts with RAID 5 configuration

I have a Dell PowerEdge 2750 that has 8 x 500GB HDD's. I performed a RAID-5 configuration through the BIOS, essentially leaving me with about 3.3TB of available disk space. I then installed Ubuntu ...
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94 views

Grub on boot partition using raid0 and swap partition question

I'm new on this linux stuff and english isn't my language so have some patience please. =) Question 1: *When a boot partition is created during or before a installation of Ubuntu, is Grub bootloader ...
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39 views

Trouble installing Ubuntu on a secondhand IBM server

I recently picked up a secondhand IBM x365, and I want to install Ubuntu on it. I've installed Ubuntu on countless personal computers, but never before on a server. I made my bootable disc (I have a ...
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660 views

Ubuntu 12.04 + software RAID = error: unknown filesystem, grub rescue (UEFI)

I'm posting here for the first time, though reading this site looking for solutions almost every day. I'm trying to install Ubuntu 12.04.3 with soft-RAID on a IBM server with UEFI support. After the ...
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96 views

ubuntu desktop installation

I've been searching on the internet for quite some time to find a solution. I've been trying to install Ubuntu Desktop on a new computer build. I would like to install ubuntu desktop on a ssd and ...
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using GRUB to boot a linux system on a different device?

I bought a new SSD drive with the idea of running my Ubuntu system on it and leaving the other two SATA drives (which are configured in a RAID array) for storage only. Ubuntu installed with no ...
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65 views

IBM ServeRAID Manager (Application CD v 9.30)

Is there a way to install IBM ServeRAID Manager from the "IBM ServeRAID Application CD 9.30" to run it in Ubuntu Desktop and/or command line environments? After installing Ubuntu 12.4.x on 3 IBM ...
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Problem removing software RAID from empty drives

I have inherited a 32 bit PC which has two SATA drives and a hardware RAID card setup for Raid 1 mirroring. The PC is empty and as I need a local server for some web development work I decided to ...
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New to Linux - Need Suggestions on Hardware that is compatiable

I want to either build a tower or use my Lenovo TS130 server with Ubuntu. My goal is to do RAID 1 on the tower and install Ubuntu. The purpose of this machine is to use it as a file server for my ...
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How to create an external selfhealing btrfs USB HDD RAID 1 array?

The hardware is an external 2TB bus powered USB disk. What I want is a RAID1 setup of 2x 1TB btrfs. Is this possible? How? __ Motivation The motivation for me to use RAID1 btrfs is because I ...
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83 views

Decrease in Network Speeds On 12.04

I have a newish 12.04 box that I converted from FreeNAS due to the difficulty with the FreeNAS operating system and slow transfer speeds over gigabit ethernet. I got 12.04 setup without many ...
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Cannot replace a faulty disk using mdadm raid1

I have a Software Raid 1 array that I build a couple years ago. One day, after I loss current, the array became corrupted. One the drive was corrupted so, I removed it from the array and rezeroed it. ...
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148 views

RAID 5 won't mount

I have a qnap NAS which is running a version of ubuntu and I'm not getting any help from their forum so I thought I'd ask my question here. I "had" 3 2TB HD's in a raid 5 configuration. When I got ...
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mdadm array: there is not enough space on the disk

I have this array of approx 6TB (ext4) and i am getting a disk space error. I only have a total of 800GB to copy to the shares I have created. I am using robocopy to copy this data from a windows ...
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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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297 views

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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How to fix broken upgrade on Ubuntu Server on USB thumbdrive with Encrypted LVM

Oh woes is me: I decided to do a do-release upgrade on my workstation and managed to bork my production workstation. My setup was as follows: 32GB usb key that Ubuntu Server booted from - this ...
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202 views

Can't boot gpt + raid + lvm disk

I bought a pair of 3Tb disks to replace some existing 2Tb disks in my Kubuntu system. I partitioned them both using GPT, making a small "bios_grub" partition on both: root@allhats2:~# parted /dev/sda ...
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Clone an Ubuntu machine with software RAID

I need to migrate my dedicated server to a new one: Both server are hosted remotely, I've no access to physical machines, only root ssh The old server is running Ubuntu server 13.10, ...
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270 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 ...
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279 views

Hardware RAID 1 Problems

So yesterday, I had Ubuntu 12.04 on a 1tb standalone drive, and a hardware RAID 1 array of two 1.5tb drives. The RAID is setup in the BIOS, and has functioned as expected on Windows and on Ubuntu ...
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Cannot boot WIN 8.1 on RAID0

I cannot repair GRUB because Ubuntu doesn't see sda and sdb as RAID0 with Windows 8.1. I think if I might be able to mount it then I can repair Grub. Or maybe I am wrong because I am noob :) ...
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mdadm /dev/md2 inactive superblocks

Using a WD world book that stopped working after power cycle. I can ssh into the machine and all disks report healthy so if I knew more about Linux I think this might be a quick fix. Figured I'd ...
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36 views

Installation on RAID 6i array?

I've been trying to get some linux distro - ANY linux distro - to function on an HP DL380 G4. I have an array of six 36gb SCSI320-SCA drives on the onboard HP SmartArray 6i controler; not a single ...
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software raid resync does not work with new harddrive

After a harddrive failure, i tried to resync the existing software raid. I copied the partitionstructure sgdisk -R /dev/sdb /dev/sda sgdisk -G /dev/sdb And added the drive back to the volumes ...
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136 views

how to fix degraded software raid?

How can i fix this degraded raid? Someone can help me to figure out? ...but i am not sure i am adding the correct drive / partition. Possible for someone to confirm the command i need to use for ...
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141 views

Mount RAID1 Drive via USB into a New PC/Laptop

I have two old 1TB hard drives that were in a RAID1 array (mdadm). They were last known to be working fine and the issue with the old PC is the mother board blew out. I now have a laptop with Ubuntu ...
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How to make ubuntu see my raid1 setup?

I have raid1 setup that i was using in windows. Now I want to see it under ubuntu. Under Disks>Devices I see the 2 x 500gb hard disks as sdb and sdc (on sda is ubuntu) and Contents says "Intel matrix ...
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How Do I Get More Than 16TB Out Of EXT3?

I have an MDADM RAID 6 array that I just added a 20th disk to. It consists of 20 1TB drives. RAID Detail: $ sudo mdadm --detail /dev/md0 [sudo] password for : /dev/md0: Version : 00.90 ...
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Using “Sata Controller” to add extra ports with mdadm software raid to create a raid 5 array

Here is the set up.... Ubuntu 12 LTS, Plex.. ect.I am looking on setting up a raid 5 using 4 2tb disks to create 6tb of space with a fail safe. One thing I have had a thought about which I am unsure ...
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274 views

Unable to install busybox-initramfs

I tried to install 13.10 Server to 2x3TB HDD with the following partioning (RAID1 + encrypted root and home) 2 times to following: 256MB EFI-Boot 500MB /boot RAID1 0,95TB / RAID1+encrypted 2TB ...
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What does the down-right arrow button do in Raid Disks 13.10 (gnome-disk-utility)?

When I open Disks (gnome-disk-utility), then highlight a RAID, then either click its gear -> RAID Disks... or CTRL+R, I get a window with three buttons, +, -, and one with a u-turn like arrow; what ...
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Raid controller question “hardware RAID Array Maximum size: 2.3TB”

I am looking to get a raid controller for my ubuntu server (used as a media server with plex) I am looking to ger this http://www.sybausa.com/productInfo.php?iid=530 however, I am new to raid, and the ...