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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xfs on raid0(mdadm) proper mounting

Reading manuals on howto tune xfs on raid is totally crazy. In my case I have raid0 of 2 disks with 512K chunk size. Physical disk block size is 4096 The correct su and sw should be su=512k and sw=2? ...
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mdadm raid1 not recognized if the HDs are put in another bay

I have created a RAID1 2TBx2 using mdadm in Ubuntu. The two drives are in an external bay (Icy Box IB-120StU3-Wh Dual Bay Docking Station) connected via USB to the laptop. Everything works fine. ...
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NAS JBOD2 2 Drive Raid 0 Enclosure Failure Data Recovery

0 down vote favorite I have a Caldigit Enclosure that had 2 2TB Sata Hard Drives in the unit. The Enclosure seems to have failed during a data recovery operation where the partition was lost during a ...
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9 views

Install Ubuntu 14.04 with RAID 1

I want to install the ubuntu 14.04 desktop LTS on my computer. I have 1 SSD and 2 HDDs and I want to set the SSD as the boot drive and the 2 HDDs as RAID 1. Is this possible and if so, what are the ...
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Compatibility of Ubuntu 12.04 with HW RAID part number: L5-25413-17

I am setting up a Linux server with Ubuntu 12.04. I want to use HW RAID part number L5-25413-17. Has anyone successfully done this?
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Trouble Installing 14.04

9.10 64 Bit works just fine. No later version will install. If I install anything newer than 9.10 I get the error: attempt to read or write outside of disk 'hd0' Boot Repair and all the online ...
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15 views

Recover Server from recovery mode(firewall closes ports)

My server( Ubuntu 14.04 - Plesk - RAID1 ) is now in normal mode. Almost all ports disabled by firewall as plesk port 8443, so plesk login panel is not opening. Also Website is not opening. ...
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dkms.conf location for new build RocketRaid documentation

Noob at work here. I have Ubuntu Server 14.04.03 LTS installed and running. I added a Highpoint RocketRaid 640L internal SATA adapter. I installed 4 drives and have them configured in RAID 5 via the ...
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Can I transfer my mdadm Software raid to a new system in case of hardware failure?

I have minimal experience with mdadm and software RAID, but I have a Dell Poweredge T110 II with two separate RAID 0 arrays, a total of two drives each array. I'm anxious that the software setup ...
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6 views

Ubuntu 14.04 fails to recognize FakeRaid volume

I'm trying to setup Ubuntu 14.04 AMD64 on a new machine based on an Asus Z10PE-D8 motherboard with Intel FakeRaid. The boot drive is an SSD with dual boot Windows 7 and Linux. I also have two ...
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27 views

MaaS node deployment failing on HP Proliant DL380 G5

i have a little lab environment with 3 DL380 G5s. All of them have 2 disks forming RAID 1+0. Got one set up as maas controller with ubuntu 14.04 (had no problem using LVM to install Ubuntu on the ...
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Does the 3ware SAS 9750-4i work on 14.04.03 LTS?

I will be installing a 3ware SAS 9750-4i RAID controller hooked up to 2 x 2TB Seagate Surveillance HDDs in a RAID-0 stripe config. My intention is to use Ubuntu 14.04.03 LTS (either Server of DT, not ...
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How can I split a partition in a RAID1 array on ubuntu?

I just purchased a brand new server on OVH with disk specification: 2 x480GB of SSD SOFT. When I do df -h, the output is: Filesystem Size Used Avail Use% Mounted on /dev/root 20G 13G ...
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20 views

Ubuntu 14.04.3 on Acer Aspire S7

I decided to move from Windows 10 to Linux a couple of days ago. I started off by trying to install Mint 17.3 Cinnamon 64bit off of a LiveUSB on to my Acer Aspire S7-391 which is an UEFI-based ...
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15 views

Hardware RAID controller on Ubuntu Server 14.01 server

It seems Ubuntu Server 14.04.1 does not support Hardware Raid controller (Smart Array B120i - embedded). Are there any drivers that will help support?
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Ubuntu Server 14.04 LTS Software Raid1 + LVM setup

Is it possible to software Raid1 + LVM on a already running production server? If possible where can I get instructions please. Many thanks..
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11 views

Failure to mount raid array after upgrade to 15.10

I need help fixing my RAID arrays. here is what happened: I previously used ubuntu 14.04 with an SDD for the system and two identical 1TB drives as RAID1 array. Each drive is partitioned in two ...
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14 views

Migrating from dmraid to mdadm

I have a problem that a 6.9TB RAID5(FakeRaid) logical volume is shown as 3.2TB in Ubuntu. Some study on the web and I found that this may be because dmraid is being used while mdadm has better support ...
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22 views

Raid 5 Array will not start and one drive failing SMART test

First of all please forgive my noobieness but I will try to provide as much info as complete as possible. I had recently experienced a power outage that resulted in my Raid 5 Array from starting. ...
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17 views

Intel RAID5 array Shows < 50% space

I created a RAID5 array from the bios of 3 Nos of 4TB disks. Then I created a Volume in Bios which shows as 6.9TB. But in ubuntu this volume is shown as 3.2TB. Why is this so and how can I correct ...
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15 views

samba share encrypted volume

I'm sure this has been answered a thousand times, but I can't find one, so apologies. I'm running Ubuntu 14.04 LTS on a file server, with samba 4.1.6. Shared files are in a RAID volume, ...
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42 views

Can't mount hardware RAID 1

Hello I am trying to mount my hardware RAID 1 partition but it gives an error whenever I am trying to do so. Note: I can't do anything to modify its partition since it has a lot of important data. ...
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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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16 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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21 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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21 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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15 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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34 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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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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18 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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17 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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12 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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14 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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37 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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30 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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27 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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20 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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32 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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1answer
80 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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49 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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54 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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61 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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2answers
73 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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47 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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30 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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30 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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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 ...