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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ZFS Pool - in dire need of help.

I'm really really new to Ubuntu. Which is probably why I'm facing this predicament... I couldn't load Ubuntu this evening. For whatever reason I could get to the login screen, but absolutely no ...
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64 views

Will an Ubuntu Live USB be Able to Access a Windows RAID 10?

My Windows will not boot, so I want to recover the files and reinstall. I've tried two different version of Linux (an old Ubuntu 7.10 disc and a Puppy Linux boot USB), but neither appears to be able ...
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Fully recovering HDDs after using of RAID controller

I've been using Ubuntu for a year. But today happened something awful to me. I bought four-core AMD computer to do some virtuals there. But, I had wanted to reduce the risk and found motherboard RAID ...
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107 views

Ubuntu Server setup: How to install Ubuntu on one drive and use other drive for file storage?

I've built a computer to use as a home file server. I will be installing Ubuntu Server. I've put a small SSD and two large HDDs in it. I have no prior experience with Ubuntu (desktop or server). I've ...
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149 views

Dual-Boot Ubuntu and Windows 8 w/ SSD in Raid 0 won't install bootloader (Asus UX301)

I have been trying to install Ubuntu on my brand new Asus UX301 to no avail no matter what I try. I am always not able to install the bootloader on any partition. This does not matter whether I boot ...
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80 views

How do I set up RAID 1 on only a portion of my HDDs, post Ubuntu 14.04 installation?

I'm trying to set up a mirrored (RAID 1) "file cabinet" consisting of the remainder of sda, after "/" and swap have been set up and Ubuntu installed, plus the equal amount of Gb space on sdb, ...
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68 views

RAID10 write speed decreased to normal SSD speed after rebuilding the array

OS: Ubuntu 14.04 LTS Software Raid10: 4x120Gb Intel 530 SSDs Server: HP ProLiant DL160 G6 FS: md0: ext4/ md1:swap Test is made on fresh new install, before making any change to some package or ...
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222 views

Two partition tables are unrecognized

While trying to installing Ubuntu 14.04 as my sole operating system, I've been encountering a number of issues (Described in more depth at Ubuntu 14.04 installation crashes with "???" ...
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Problem with full partition on / and raid

I'm in sort of bug with my root partition taking 100% I try to mount the / partition on a new folder /tmp/2ndRoot/ to make a correct du without /home and other folder mounted, and it seems the system ...
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50 views

nfs configured - clients cannot connect

I'm trying to get NFS working on my ubuntu server 14.04 again. It was originally working until last weekend, but when I tried to configure samba everything wen't fubar. Now none of my devices can ...
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Incorrectly detected fakeraid destroyed data during install

I have attempted to install ubuntu 14.04 on my PC in parallel (dual boot) with windows XP. My PC has 2 SATA disks, one was more-less devoted to the system, second one to data. However, when running ...
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34 views

How to check resync of megaraid?

I previously use software-based raid, and 'cat /proc/mdstat' can show the resync progress. Now I use hardware-based raid (perc h710p), I wonder if there is way to check resync progress using MegaCli. ...
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25 views

Ubuntu RAID failure [get a warning]

Okay I might sound paranoid, but every day I think that my harddrives in both my servers failed for some reason and I am going to lose all my data. I have a server with a RAID 5 installation with ...
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549 views

How do I install the LSI megacli in Ubuntu?

Similar to this question (http://serverfault.com/questions/192394/megacli-always-returns-blank-output) with some differences. I am using perc h710p raid controller on Dell Ubuntu box. I download ...
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2answers
61 views

Quick question: Will a fresh install Ubuntu detect my Raid-0?

I have Ubuntu installed on an external drive and Windows installed on my primary "C:" drive. I've been dual-booting this way for years. Recently, I upgraded my single SSD C: drive (where Windows ...
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2k views

Software raid 1 on ubuntu 14.04 desktop

I am trying to setup Sofware RAID 1 for my ubuntu desktop (14.04) Unfortunately desktop installer no longer supports RAID1 configuration. Therefore I am trying to manually set this up. I followed ...
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63 views

RAID 0 recovery from lacie NAS

I am in desperate need of some assistance by the more experienced users out there! I am trying to rebuild a RAID0 that is composed of two 2TB Hard drives. These come out of a LaCie Ethernet BigDisk ...
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132 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 ...
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253 views

2nd HDD as a RAID 1 Mirror on a Existing Ubuntu Server

Can any one point me in the right direction as to how I can add a additional HDD as a RAID 1 to my existing Ubuntu Server which works flawlessly. My present set up is that I have 2 HDD on my Ubuntu ...
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2answers
865 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 ...
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248 views

mdadm /dev/md0 fails to load on boot

I am running mythbuntu 14.04 with a raid 6 setup using 10 hds. Every time I boot my system, mdadm fails to load. I have to run the following commands to get access to the system: All commands run ...
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Extending RAID-1 with two more disk (RAID-1 => RAID 1+0)

I have a Ubuntu 12.10 installation with (software) RAID-1 - only for data (root-system and swap are on another drive). Now I would like to add two more drives to the existing RAID 1 (basically to have ...
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44 views

Adding another HDD to Mirror the existing Hard Drive

My current setup is that I have a 160GB HDD as the primary where I have installed Ubuntu Server 12.04 LTS. I have a additional HDD (2TB) where I store my Files. I want to be able to use the software ...
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95 views

Installation on to a HP DL120 G7 hardware RAID not detected

Can anyone guide me to get Ubuntu server 14.04LTS installed on my servers hardware RAID. I have got the raid set up as raid1 using 2 1Tb disks, but when I go to install the OS I get the choice to ...
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Grub error: out of disk on Ubuntu server 12.04 after power interruption [duplicate]

I've got an Ubuntu server set up that has been running happily for a year or so with no problems to speak of. It's configured in a RAID-1 to keep everything nice and backed up. Yesterday we had a ...
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76 views

Stuck setting up RAID 1

I've tried switching to linux many times before and each time came up to a problem and ended up giving up. This time I hope things are different. I have a home server: P8Z77, 1xSSD (with Ubuntu 14.04 ...
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387 views

How to use UUIDs in fstab for configuring btrfs RAID1

This is similar to this question, but the solution there was to choose the disks using "device=/dev/sda1,/dev/sdb1", which is not as robust as using UUIDs. I'm sure it can be done, but I can't find ...
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21 views

Add disk and use software raid

I have a lvm partition on a disk, and another, identical drive with no data on it. Would it be possible to set up these two drives in RAID 1 using mdadm, with the same lvm data on top? Perhaps by ...
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19 views

Make RAID on one harddrive, but many partitions?

I have been reading a lot about raids and I want to get my hands dirty. The goal: Virtualize a copy of ubuntu and play around with raid. This means that there won't be more than one HD, hell the OS ...
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Raid: how to address the error on “--remove”?

I first stop the raid array, % mdadm --stop /dev/md127 mdadm: stopped /dev/md127 then do a check, % mdadm --detail --scan ... the array is no longer shown. then I do remove % mdadm --remove ...
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I can't find my HDD(hard disk)

I have installed Ubuntu removing windows 7. Now i can't find my Hard disk drive. I tried these command. sudo fdisk -l it shows me there are 3 hard disk named : dev/sda1, sda2, sda5. but when i ...
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Can I install ubuntu 14.04 on my RAIDed desktop?

I think I heard that RAID was removed from the Ubuntu installer recently. My system is currently made up of a series of RAID1 arrays: one for 12.04, with /home mounted on a separate partition/array. ...
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352 views

Ubuntu 14.04 install on hardware with RAID

I've just built a new machine using an ASUS Mobo with 8GB of RAM and set up RAID 10 with 4 new HDD. I want to install Ubuntu 14.04 on it and so far have tried to do so 3 times with no luck. The ...
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RAID10: why resync takes huge amound of time?

After setting up RAID10 and installing Ubuntu, I reboot then check /proc/mdstat. It shows [>...] resync = 2% finish=29702.5min speed=1030K/sec". That is about 500 hours or 20 more days. Is ...
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79 views

How to force update-grub to use UUID?

When I run "update-grub", the file "grub.cfg" will contain lines like this. menuentry 'Ubuntu...' { ... linux /boot/vmlinuz... root=/dev/md124 ... ... } For the line of linux, is it ...
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How to rebuild mdraid metadata?

I somehow hot swapping a failed hard drive on Ubuntu 14.04 LTS Server running mdraid RAID1 array without marking the failed drive to fail and remove it via mdadm. I successfully add another drive on ...
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What version of MegaCli should I download for H710p?

I am using Dell Perc H710p adapter. When trying to download MegaCli from LSI, someone suggested to check the parameter like. % lspci -v | grep LSI When I run this command, I got. 03:00.0 RAID bus ...
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354 views

Ubuntu 14.04 + Dell Precision T7500 = not bootable?

Environment Ubuntu 14.04 Desktop 64-bit Dell Precision T7500 2 x Intel Xeon X5690 @ 3.46 GHz 96 GB RAM Quadro NVS 420/PCIe/SSE2 Video Card built-in SAS RAID controller Disk Configuration 2 RAID ...
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29 views

Ubuntu server installation - partition can't finalize

I need help on ubuntu server installation. Just can't pass the partition section. I have 3 hdd 2 with raid 0 from bios and 1 for the operating system. in my previous kubuntu setup , home directory ...
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134 views

SSD is not showing up in boot loader installation device list while installing ubuntu 14.04 alongside windows

I've windows 7 installed in my SSD and trying to install ubuntu 14.04 in same SSD drive. But when I try to install ubuntu alongside windows it shows only HDD in the drive selection list. If I try to ...
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747 views

btrfs for deduplication and compression at the same time?

I'm thinking about using btrfs functions for both deduplicate and compress my storage... My question is: is it efficient? I mean, does it deduplicate AND compress at the same time efficiently?! I'm ...
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30 views

Problems booting windows and ubuntu

I just installed Ubuntu on a Windows 7 machine and Windows will not boot. A few notes: This computer is connected to RAID and another HD. I installed ubuntu on the nonraid drive and windows is on the ...
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272 views

Failed to install GRUB on a separate '/boot' partition on a fake RAID 0 (12.04LTS)

I'm having some problems getting GRUB configured for Ubuntu 12.04LTS on a fake RAID 0. I can either get the GRUB rescue prompt at startup, or just a GRUB prompt but I cannot boot to Ubuntu manually. ...
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RAID device not detected

I create RAID10 using "mdadm --create ... --metadata=0.90 ...". There are four partitions which I name from /dev/md128 to /dev/md131. First thing strange is that mdadm automatically changes them from ...
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Raid10: how to tell which disks are in mirror?

When I do "cat /proc/mdstat", there seems no such information as to tell which disks are in mirror. % cat /proc/mdstat md126 : active raid10 sda1[0] sdd1[3] sdc1[2] sdb1[1] ... near-copies Thanks ...
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How to restruct RAID 10?

We would like to alter the partition without losing data. Here is the sketch of the plan. I am wondering if it is doable using mdadm; and if so, please kindly point some reference on how to carry out ...
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shrink ext4 partition on raid 10

My question is similar to Move ext4 partition, but the challenge I couldn't figure out is how to shrink a partition from the start. So suppose originally the partition (with raid) is like this. ...
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86 views

Automated installation of “ubuntu-12.04.1-server-amd64”

The physical server contains two HDD, and Raid1 mirror relation has been established between them as shown in attachment. In ks.cfg , the information related to partitioning as as follow: #Partition ...
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Error on choosing location while freshly installing 14.04 [closed]

I'm trying to install 14.04 on my desktop and am running into this error after going through the partitioner. Error screen: Additional information: My system has da fake raid array (Raid 0). ...
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245 views

NAS running Ubuntu / Raid 5 / SSD cache

I'm about to setup a NAS - planned hardware so far: MB: ASUS P9D WS(*link1): sry, it's german, it says th MB supports Hot-Plug in AHCI or RAID Mode, supports Intel Smart Response (SSD Caching) CPU: ...