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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No HP RAID with ubuntu 12.04

I've just bought a pair of HP DL360 G9's which have an onboard RAID card, I've configured the RAID volume and put in my kickstart CD only to find that individual disks are visible (SDA, SDB, etc) ...
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68 views

grub rescue on server with lvm+raid1

I have grub rescue > prompt after a power failure. I do have a Ubuntu Live CD. Any procedures on how to install grub on this kind of setup. raid device - md0 boot partition - VG-lv1 raid devices - ...
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How to install RAID management tool for ubuntu 14.04.3

This is the output of lsb_release -a command; No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 14.04.3 LTS Release: 14.04 Codename: trusty According to ...
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RAID 1 on existing system

I have a system that has been running for over 2 years with one disk. Recently, I brought another disk same size and speed as the current drive. I wanted to add the new drive and convert to a RAID ...
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Do I have to configure a server with hardware RAID?

I recently installed Ubuntu Server 14.04 an HP ProLiant ML350 Generation 6 (G6) server, that used run windows, which appears to have RAID controller: The Ubuntu Community Help Wiki says: ...
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55 views

After Installation Ubuntu Server 14.04 Show Blank Screen and can't Login (Problem with Raid)

I have a home server with below specification: - Asus Z87-C motherboard - 2 Internal Network Card (One On board and One PCI) - 2 X HDD 1TB (RAID1-Mirror through motherboard solution - Not Software ...
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37 views

Setup RAID 10 on RAID10 supported main board failed

I have 4x2T SATA disks and want to build RAID10 on a main borad: Intel Server Board S2600CW2 http://ark.intel.com/products/83027/Intel-Server-Board-S2600CW2. Somethings are quite confusing to me ...
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23 views

Ubuntu 14.04.3 LTS - RAID 5 volume vs capacity discrepancies

I currently have a RAID 5 setup on an Ubuntu 14.14 RAID setup includes (3) 2TB disks. The RAID /dev/md127 is showing 4.0 TB in size. Which would be correct I believe on a RAID 5 setup with 6.0 TB in ...
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69 views

RAID 5 status = “Initialize”

I recently built a PC and loaded 14.04 on it. My motherboard (ASRock z97 Extreme 4) has the capability to run a RAID array built into it (pardon my terminology if I'm wrong, I'm not really that good ...
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16 views

Need help RAID + UEFI + boot crash

I have a server in RAID 1 with Ubuntu 14.04 LTS. Because of UEFI I could not install boot in raid so I left the boot on one of the hard drive. The problem I have is that the HDD drive where the ...
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28 views

Cache a (non-root) hdd which already has data on it with bcache - possible?

Could not find any recent info on this subject, so here goes! I have a small home server with 2 disks: SSD (120 gb), formatted as /ext4 which has an Ubuntu Server 15.10 install (including /home, ...
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27 views

Setting up a RAID 1 NAS with a seperate OS HDD?

So I'm a solid ubuntu-amateur with only a year of experience or so hoping to put together an ubuntu-samba file server and looking to learn more. I have seen a couple tutorials however the tutorials ...
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36 views

How to configure existing raid after upgrading to 14.04 from 11

I have a pci raid controller, with two 250G drives. Configured this to work on ubuntu 11 a few years back. Have since forgotten much about the details of this configuration (i.e. software, hardware, ...
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17 views

If I have created an LVM on one server can i move it to another?

Alright, so 2 questions here really. 1) I have already created an LVM uaing only 1 disk, if i remove this disk and put it into a new server will my data be lost or can I tranfer / create the LVM ...
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72 views

Issue with RAID CacheCade on Lenovo System x

I have a Lenovo System x 3500 M5 with RAID controller to work with CacheCade. I am using the storecli from https://www.thomas-krenn.com to configure the SSD drives as cache for the HDD drives. ...
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45 views

Share encrypted folder with Samba but only mount on demand

There are some similar questions, but my situation differs a bit. I have a server running 24/7 with a raid, which is shared via samba. I want to encrypt some folders on the raid and make them easily ...
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50 views

How to split RAID 1 disk created under Windows Server

I got a RAID 1 created under Windows Server 2012, as you can see : $ fdisk -l Disk /dev/sda: 2.7 TiB, 3000592982016 bytes, 5860533168 sectors [...]Disklabel type: gpt[...] Device Start ...
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29 views

MDADM Superblock can't be read - raid 1 mirror

I have a ubuntu linux box, with a raid mirror, 2x3TB using mdadm It's not the system disk, but a raid 1 mirror that contains my files. After power cut, restarted and now getting "can't read ...
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38 views

Can I get SSD rw performance while keeing data security if I combine SSD & HDD in RAID1

I have 2 storage devices; classical slow HDD( 750GB, /dev/sda ) and faster SSD( 128GB, /dev/sdb ). Currently I have installed Ubuntu & Mint on same btrfs partition on SSD ( /dev/sdb5 ). My btrfs ...
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105 views

I think I messed up GRUB (RAID installation)

Today I was doing a apt-get dist-upgrade, and a popup showed up, "Do you want to follow without installing grub?" or something like that, and I wrongly pressed YES, So, I have done a apt-get install ...
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67 views

Can I use RAID0 on Ubuntu Server if my motherboard doesn't support it?

I have a fairly cheap home server build and I want to setup RAID0, but my motherboard doesn't support it. Can I set it up using only software in Ubuntu? I have two empty 1TB Hard Drives. I have ...
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113 views

Building a light weight home server/NAS. Question on RAID and filesystems

I'm planning a build that will be using Ubuntu Server 14.04. I have been trying to learn as much as possible and practice in virtualbox before actually installing any hardware. I am really enjoying ...
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112 views

How to Install Ubuntu Desktop on RAID 1

I am having to rebuild my Ubuntu MYTHTV system (RAID 1) on new hardware due to power supply failure taking out major components (originally built on Feisty). I understood that RAID support was being ...
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99 views

Am I supposed to RAID0 the ESP partition? (mdad software RAID)

I'm well-versed in manually-partitioning for RAID0 or RAID1, but only with BIOS, and I would just give /sda an extra 1MB partition for GRUB. With UEFI installed, however, I am not sure what to do ...
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89 views

Best RAID solution with a hardware RAID card?

I have a repurposed server. Before the repurpose it was an ESXi host so it had 6 2TB hard drives and an Adaptec 6805 SAS RAID card (and 2 6-core processors and 128GB ECC RAM which is another problem) ...
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40 views

sda sometimes changes to sde after reboot

I have a problem on ubuntu 15.10 server. Sometimes, the boot device is /dev/sda and after reboot it changes to /dev/sde, which messes up my raid. /etc/fstab: ...
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42 views

Installing GRUB with RAID

I'm setting up an Ubuntu Server 14.04 system from scratch. I'm installing via a USB key (which mounts as /dev/sda I think). I have 4 3TB SATA Seagate drives, and would like to mount / on a software ...
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12 views

mdraid 0: spindown of disk, F/W: Invalid Phase Change, F/W Device Problem

I use Ubuntu 14.04 64bit server with two SCSI disks in software raid 0 and installed unity on top of it. I know it is not the most secure setup but I love to recycle old hardware (and most of the time ...
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96 views

Ubuntu Server with kubuntu-desktop/kubuntu-full vs Kubuntu ISO

I've recently installed Ubuntu Server with a RAID 0 setup and after that I've installed both kubuntu-full and kubuntu-desktop. That way I get a Kubuntu setup without using the Kubuntu iso, since the ...
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24 views

Ubuntu 14.04 LTS long sleep on boot Raid 1

I've recently installed Ubuntu with raid 1 on 2 new 1 TB drives. Now for some reason it takes really long for it to boot. I've tried looking at it with Bootchart and it seems like it takes a lot of ...
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70 views

grub fails to find btrfs-filesystem after adding new devices

Having my server (Ubuntu 15.04) equipped with two 1TB HDDs in raid1, I added yesterday two new 4TB HDDs. After adding those with btrfs device add ... I rebalanced the system with btrfs balance ...
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46 views

RAID array somehow has extra drive, how to remove using mdadm?

I have a simple RAID 1 array as follows: sda (2TB total: partition1: 15GB partition2 1.8TB) sdb (2TB total: partition1: 15GB partition2 1.8TB) md0 = RAID1 15GB md1 = RAID1 1.8TB Somehow, md0 ...
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Ubuntu Server 14.04 LTS Server not seeing a RAID1 setup by AMD-RAID

I am attempting to install Ubuntu Server on a RAID 1 array I setup through my AMD-RAID. This is the legacy RAID that comes with my MSI motherboard which is configured in the BIOS. I have setup the ...
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What provides the mdadm-raid boot facility?

Three of my initscripts depend on boot facility mdadm-raid. In particular, user@host:/etc/init.d$ grep mdadm-raid * cryptdisks:# Should-Start: udev mdadm-raid lvm2 cryptdisks:# Should-Stop: ...
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54 views

Failed Raid 10 Disk - Cannot mount raid to recover

New to Linux and Ubuntu. I am running Ubuntu version 14 with 4 x 2TB drives in a raid 10 array. 2 of the drives have failed and I cannot get the array to mount in order to fail the drives and add new ...
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355 views

Ubuntu server 14.04 LTS black screen after grub

Motherboard: Asus H170-PRO CPU: Intel Core i5-6500 HDD: 1TB x2 From the BIOS I made the following changes: AdvancedMode -> Boot -> Secure Boot -> Os Type = Other OS (instead of Windows) Ez Tuning ...
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Error On GParted When Creating RAID Array

I keep getting the error message below when I load up GParted. It only occurs after I've put my drives into a RAID array using mdadm. The RAID /dev/md0 drive itself doesn't have the error, but the ...
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49 views

How to verify grub2 on a Soft RAID setup

While upgrading the distro I got the following warning: Setting up grub2-common (2.02~beta2-29) ... Setting up grub-pc-bin (2.02~beta2-29) ... Setting up grub-pc (2.02~beta2-29) ... Installing for ...
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250 views

Install Ubuntu 15.10 Desktop with RAID1

I would like to install a Ubuntu 15.10 desktop on a computer, with a RAID1 (and LVM) setup. Before, I used the alternate installer to do this, but that installer is not available for the last few ...
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226 views

How do I convert from RAID1 to JBOD with btrfs?

I have the following RAID1 btrfs set: Label: none uuid: 87595481-7b5c-464e-b10d-d9b2b0852e11 Total devices 4 FS bytes used 4.77TiB devid 1 size 2.73TiB used 2.63TiB path /dev/sdb ...
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87 views

Ubuntu 15.10 crashes with RAID-10

When trying to install Ubuntu 15.10 with a RAID-10 created the system crashes after some time during the installation. Hitting Alt+F4 gives the following output as seen from screenshots in ...
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13 views

Migrating from broken motherboard

I have a 14.04 LTS Server that I use for virtualisation with KVM. The server has two hard drives with RAID 1 using mdadm (pretty standard as set with the Ubuntu installer). Yesterday, the motherboard ...
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87 views

Installing Ubuntu on RAID 1, but not using all disks capacity? And what is HotSpare?

I'm totally new to all this hard disks matter and even newer to topic with RAID. I hope somebody can help me! I have installed Ubuntu 14.04 LTS (BioLinux) on Dell Precision T7500, with Dell PERC 6/i ...
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Raic controller with ext sata cage

I was wondering how difficult it is to create a Raid 5 system on an Ubuntu 14.04 desktop pc already running. I plan to use this Raid card with this Sata Cage and add 4 HDD for backup and storage. I ...
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Attempting to Recover a Raid 5 array with 1 failed disk and complete hardware failure

Long story short - Synology 1511+ reported HDD failing and gave me an option to attempt to recover. Came back some hours later to find the entire device had failed. Built a new Ubuntu box installed 4 ...
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500 views

Ubuntu 15.10 can't see RAID 0 partition

I have 2 drives I've set up in RAID 0 (/dev/sda and /dev/sdb in Ubuntu). When I was running 15.04, I installed Ubuntu and a device appeared in /dev/mapper, which was the raid drive. After installing ...
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200 views

Massive read Problem with LSI SAS 9211-8i Host Bus Adapter under 14.04.3 LTS

I have a new installed 14.04.3 system with massive read problems from a raid 10 over a Avago LSI SAS 9211-8i Host Bus Adapter. I tried to install the latest driver downloaded "Linux ...
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2answers
432 views

How to dual boot Windows 10 on RAID?

I've been trying to install linux on my system for a while now, and I'm at a loss for what to do. Trying to dual boot windows 10. Have a raid controller with mirrored hard drives. When currently ...
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New 14.04 i386 desktop with 3ware 9500s and 4TB RAID, can't partition

My install was a bit troublesome but I have most things sorted out. The main reason I moved this system from XP to Linux was to get support for my upgraded 4TB raid array (old was 2tb). Both GParted ...
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31 views

GIGABYTE P25W v2

If helpful, I can run dxdiag and CPU-Z to show internal components. But my question lies in this. I'm running into lots of errors trying to live boot to test the system. I know intel is a ...