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.
1
vote
0answers
79 views
Is there a fix for md raid failure on 12.04
I've got a system that ran cleanly on Ubuntu 10.04 LTS.
Upgrading to 12.04 LTS / 12.04.1 LTS / 12.04.2 LTS has been unpleasant and unsuccessful.
Install goes cleanly and I have installed as follows:
...
1
vote
0answers
301 views
Dual booting Ubuntu with windows 8 on machine with SATA ssd cache controller ( DELL XPS )
System info: Dell XPS 8500 SE with 2TB HD and 32GB SSD SATA RAID cache
Hello,
I have been at this project for a couple days now and have hit a brick wall on researching the issue. I can't find an ...
0
votes
1answer
48 views
Lenovo ThinkServer Ubuntu 12 Server Install: Partition Issues
During the Ubuntu 12 install, I get the a screen that says "ATA RAID Device Detected" and asks if I want to enable it. Having used Lenovo Easy Setup to configure the raid (1 array with 2 1tb drives) I ...
0
votes
2answers
309 views
Driver hp raid controller b120i
I have a problem with a installation of ubuntu 12.04 server on HP SL4540 with raid controller b120i.
Ubuntu during installation does not recognize the raid controller, and displays the disk ...
3
votes
1answer
109 views
Improving virtual Ubuntu hdd performance running on Windows host
I have a Windows 2008 R2 server with:
1 x 80GB SCSI, partitioned:
100MB reserved
79GB NTFS windows
2 x 1TB SCSI HDD running in a hardware RAID 0 striped configuration, partitioned:
7GB RAW (left ...
1
vote
0answers
71 views
Will Ubuntu spin down harddrives in an RAID 10 array?
I'm about to buy parts for a new home server and I'm planning on using Ubuntu(perhaps 12.04 LTS)
For the OS, I'll use an SSD.
For cold storage(big files, rarely accessed), I'm planning on setting up ...
1
vote
0answers
69 views
Repair degraded/failed Raid1 Ubuntu 10.4
My search Fu and brain are exhausted, I need to ask for some help.
Our Company Server was taken out of the building for about 5 months while some restructuring was done. When returned from sitting ...
0
votes
0answers
42 views
Trying to Mount a Hardware Raid 1 HDD attached usng a usb enclosure
Computer issues need to access data on RAID 1 WD 250 GB HDD. trying to mount drive using usb enclosure but it not working.
Asus P4c800-e Motherboard with hardware Raid.
what do I need to do.
3
votes
1answer
235 views
How to set up SSD raid and TRIM support?
I am looking to set up a new server. I can only use Intel 520 Series 240gb MLC ssds or standard Seagate 7200rpm disks.
These are the non negotiable options.
Naturally, as this is going to be running ...
1
vote
1answer
127 views
Recover failed RAID1 software Partition / missing partition table or superblock
i already read & tried different approaches for 2 days now but nothing seems to work.
I have 2 HDDs, on each one is an partition with 200GB which i had in RAID1. Then i installed XBMC and tried to ...
2
votes
0answers
250 views
Installing 12.04LTS Server on a Fake RAID10
Scenario
Install Ubuntu 12.04LTS Server on a RAID10 with boot on a RAID1.
4 - 2Tb SATA Hard Drives
3 Partitions (/boot, /, and swap)
boot (256Mb from each disk) setup in RAID1 /dev/md0
partition ...
0
votes
1answer
56 views
Can't Install/Boot Ubuntu
I am getting the error:
ata[462]: HDIO_GET_IDENTITY failed for '/dev/sdh': Invalid Argument
I used the x64 Ubuntu 12.10 download burned to a DVD. I cannot boot from the DVD.
I am using:
...
2
votes
2answers
80 views
Activate spare for RAID-5 in Disk Utility
I have a RAID-5. I'm trying to replace a failing drive in Disk Utility GUI. I added a new drive as a spare, then did "Remove Component" for the failing drive. How do I tell it to actually use the ...
1
vote
0answers
144 views
broken raid 1 array - I think I messed up
I have a big problem with my raid setup. So if anyone is interested, please help...
I have a raid1 setup with 2 hdd. One day I saw in the SMART data of one on the disks that it had some bad sectors, ...
0
votes
0answers
96 views
Error while booting with WUBI with RAID
I have a Sony Vaio Z21 under Windows 7 x64 with RAID-0 setup.
I installed WUBI.
But when I reboot to Ubuntu, I get the following message :
Completing the Ubuntu installation
For more ...
0
votes
1answer
68 views
Formatting aand setting up Raid on a secondary and tertiary drive
I am a Ubuntu Server newbie and an amateur, more like a newbie, with Ubuntu Desktop. So FYI... Sorry for any potential redundancy, but most of the formation I have found is to setup RAID on a fresh ...
0
votes
1answer
289 views
Ubuntu 12.10. Can't format root partition at installation time
I'm trying to install Ubuntu 12.10 on a Supermicro storage server and have an issue.
I am using alternate (text-based) installation cd image and when I get to the Detect disks section it says there ...
1
vote
0answers
108 views
How to access Intel Matrix RAID 0 from installed system (live USB had detected it automatically)?
I have Intel Matrix storage drive that have 2 hard drives installed in stripe. When I boot computer with Ubuntu 12.10 live (from USB) I can access this "virtual" drive from RAID. After installing ...
0
votes
0answers
130 views
DMRAID issues with Intel Matrix Storage (NTFS)
I have a RAID 5 array set up in Windows 7 using the Intel Matrix Storage Manager, which is, to the best of my knowledge, known as "FakeRAID". I installed Ubuntu 12.04 LTS side-by-side with W7, and I'm ...
1
vote
0answers
128 views
How do I setup RAID5 on 12.10 server without including system boot disk (after install)?
I have installed Ubuntu 12.10 Server on my HP Microserver. I installed it onto an SSD and now have 4 1TB HDD which I want to configure as RAID5.
How do I go about doing this, can I do this from the ...
3
votes
1answer
115 views
Diagnose complete hang of Ubuntu 12.04.1 Server when starting an I/O intense operation?
At the moment I am trying to migrate data from a software RAID5 (6 disks) over to a software RAID1. The command of choice was:
rsync -avxHACPX /mnt/old/ /mnt/new/
However, after the first few files ...
1
vote
0answers
127 views
Restoring RAID after linux installation
After Years using windows and wishing to enter the linux world, I recently installed Ubuntu 12.04. I have a Dell vostro 3460 with:
500 GB HDD
32 GB SSD mSATA (cache - not physical drive)
My ...
1
vote
2answers
201 views
Ubuntu 12.04 RAID 5/6: Native RAID or ZFS?
have 8 hard drives of different sizes that I want in a RAID 5 or 6 configuration, the OS is Ubuntu 12.04 desktop.
Does the native RAID in Ubuntu support RAID configurations with hard drives of ...
2
votes
1answer
242 views
Alternate Installing Ubuntu 12.04 on new Vaio svz (RAID0)
I am attempting to install Ubuntu 12.04 LTS 64-bit on my brand new Vaio SVZ laptop. I am using alternate installer, since the machine has a RAID0 SSD (fake raid?).
After activating ATA RAID, ...
1
vote
1answer
52 views
RAID (mdadm) - Flags necessary?
As I understand it, it's best practice to set the drive flags as "raid" before adding them to a mdadm raid array. Okay fine, but I also heard people say that they didn't do this and mdadm worked fine. ...
3
votes
1answer
645 views
Can I cache an mdadm raid with an ssd?
I have a 1TB array set up in raid 1 using mdadm on Ubuntu 8, to store mission-critical files. I'd like to speed up read/write, especially for large files by caching to an SSD. Is this possible? Does ...
2
votes
1answer
229 views
RAID (mdadm) - What happens if drives are mismatched in size?
Question 1 - Before you answer with "it just takes the smaller disk", hear me out quick. My 3TB WD Reds come out to be 3001 GB in size. Let's say I set up a mirror via mdadm for sdb1 and sdc1 which ...
0
votes
1answer
65 views
RAID (mdadm) - File system relevant prior to building the array?
In the event I want to set up a RAID 1 mirror utilizing mdadm, is it needed to have a file system on the drives first? Reason I ask is my desktop which has RAID 1 (built from the alternate install CD) ...
0
votes
1answer
96 views
Hardware RAID1 device is the wrong size/too small?
My motherboard has an Intel RAID controller. I set up 2x3TB HDD in RAID1 named "Home". This should make a single device that is about 3TB. This is what I end up with:
# fdisk -l
Disk /dev/sda: 240.1 ...
0
votes
0answers
30 views
CineRAID CR-H458
Has anyone used this external RAID enclosure? I would like to know if it is a true hardware controller meaning Ubuntu would have no problem recognizing the array as one drive.
Thanks for any help!
3
votes
1answer
1k views
Software raid - mdadm - re-find my array
Description
Today I plugged in another hard drive and unplugged my raid drives to ensure when I wiped the drive, I would not accidentally pick the wrong drives.
Now that I have re-plugged in my ...
0
votes
0answers
161 views
Ubuntu not mounting RAID 0 Array
So here's the senario, I have a 64GB SSD with 2 partitions, one for Windows, and one for Ubuntu 12.10. All my data is stored on a RAID 0 (relax, it's backed up somewhere else too). At first, Ubuntu ...
1
vote
2answers
283 views
Should swap and RAID-1 mix?
I have a box with a small RAID-1 array being used for swap space. I only did this since I was setting up mirrors for every other partition in the system.
Today I read this question and it prompted ...
0
votes
0answers
69 views
Shrink RAID-1 (md) partition
How do I go about shrinking a RAID-1 array and its' underlying partitions so I can use spare space for something else?
Background
I have a box I've recently rebuilt with 12.04 for use in various ...
0
votes
0answers
30 views
12.04 installer can't see vendor's h/w raid partition
I'm trying to install 12.04.1 server edition onto a new Intel-based machine from a USB key, and all goes well until I get asked where to install the OS, as the only option I get is:
SCSI7 (0,0,0) ...
2
votes
1answer
33 views
How to change the default location of /home/.encryptfs
Situation:
I have a 2 large HDs setup in RAID 0 config and mounted in /raid (redundancy)
I moved my /home to /raid/home. I hacked around configs to ensure that Ubuntu understands that I want my ...
0
votes
0answers
69 views
Fakeraid 0, dual boot, raid on data drives not boot
I've looked all over, but simply cannot find the answer to this question.
I have a dual boot system. XP SP3 32bit and Ubuntu 12.04 64 bit. I'm only keeping XP around until Lightworks gets its Linux ...
0
votes
1answer
311 views
How to migrate from RAIDZ1 to RAIDZ2 using ZFS-native? [closed]
Last night I created a raidz1 array, however later in the evening I realised I needed to create a raidz2 (RAID5), is it possible to change the raid level of my array from raidz1 to raidz2 without ...
0
votes
1answer
308 views
How can I solve my RAID installation problems?
Trying to install Ubuntu Server 12.10 64-bit (also tried 12.04.1 64-bit LTS) with a RAID5 array but machine does not boot grub (I get the black screen with the blinking cursor), and I have tried
...
2
votes
0answers
93 views
How to choose LVM mapping mode when installing Ubuntu server 12.04?
I would like to create a volume group with striped mode on top of 2 RAID-1 devices.
The issue here is I cannot choose striped when configuring LVM at installation stage. It's always be linear.
1
vote
0answers
69 views
How to prevent Ubuntu from assembling degraded RAID on boot?
I have RAID 5 on 3 hard disks, in which one of them is external on USB 3. I'm facing problems on boot because sometimes the external drive isn't detected or maybe isn't ready soon enough, and the RAID ...
0
votes
1answer
39 views
RAID 0, new drive mirroring issues
Here's the run down: We have a 2 disk RAID 0 array. One of the drives failed and the other is marked as depreciating. We aquired a new drive, same specs as the old. To our thinking we simply replaced ...
2
votes
0answers
193 views
Fixing broken raid0 with dmraid?
A while ago when I was still on Windows I had two secondary 1 TB hard drives that used a raid0 setup, fakeraid I believe with Intel. My primary hard drive died which seemed to have messed up the raid ...
0
votes
2answers
188 views
Would Mdadm be faster than fake raid adapter?
I just bought myself 2 x 3tb wd red drives and a startech 4 port raid card . Unfortunately, I have a very, very strong suspicion that this is a 'fake-raid' card as it is not from any of the main ...
1
vote
0answers
164 views
2x SSD like one drive 12.10
I want to do a clean install of ubuntu 12.10. I got 2x 40GB SSD's. I want to have them like one drive. (like RAID0), is there a way to do this with LVM, in the graphical Ubuntu 12.10 installation?
I ...
3
votes
2answers
2k views
How to setup a RAID Install with Ubuntu 12.04 LTS?
I have one pc that has two 120GB hard drives in it. There is currently no operating system installed in my PC. I want to install Ubuntu so it will see and use both hard drives for booting and storage ...
0
votes
1answer
225 views
Why is ext4's Journaling I/O usage so high when copying files to my RAID1?
This just barely started occurring and I feel like this is not a bug but a configuration error (hopefully). I'm on 12.04, 64-bit and have been happily stable for many months. My RAID1 is years old and ...
2
votes
1answer
196 views
Problem installing GRUB with dual boot Win7 on RAID
I use Linux at work and am pretty happy setting up and installing to new machines in several configurations, however I have to admit, this time I'm stumped!
I have a nice new PC with an SSD Raid in ...
0
votes
1answer
770 views
How to make GRUB2 detect and boot Ubuntu on a RAID 1?
grub 2 is unable to detect /dev/md1 which is a raid 1 drive on my computer.
When I press c in grub menu and run ls I get a list of all the drives but don't see md1 for booting Ubuntu which is on ...
0
votes
1answer
54 views
Copy entire filesystem in a folder where a raid-1 array is mounted
I am trying to migrate from a single disk drive system to a double disk drive software raid-1 system that already has a running system on it. Meaning that formatting and having a new installation of ...
