Questions which refer to software RAID implementations.

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3
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2answers
596 views

Is Online Capacity Expansion possible in Windows 7 software raid?

Many low-end raid cards now offer Online Capacity Expansion (OCE) and Online Raid Level Migration (ORLM). This explains both. Can I do OCE or ORLM on my Windows 7 software RAID to add disks and/or ...
3
votes
1answer
7k views

Install Linux mint with Raid

My MB supports fake raid (Intel DH67CL motherboard). But I was using the system in 'software raid' as I could not correctly set up fake raid in Debian. Now, I decide to use Linux Mint 12. During the ...
3
votes
1answer
342 views

I'm trying to mirror drives of the same model, but one appears to be slightly larger

I'm trying to mirror a drive using Disk Management in Windows Home Server 2011. The target drive (Disk 1) is the exact same model as the source drive (Disk 0), but the target drive appears to be 1MB ...
3
votes
1answer
976 views

ubuntu 10.04 softRAID 5 partition scheme

I'm trying to create a RAID 5 array which will contain the Ubuntu installation itself. I tried this partition scheme: 2.0 TB for / 6.0 GB for swap This was as per the instructions provided by ...
3
votes
1answer
2k views

Resize a RAID 1 volume on OS X Snow Leopard - how? (Note: software raid)

I've scoured the Internet in search of an answer to this question, and as usual with OSX-related topics, I often don't find any deep-dive technical explanations sufficient enough to feel confident ...
3
votes
2answers
37 views

How to make a three disk software RAID by adding the third disk?

The server is running CentOS and it has been successfully running a two disk software RAID. I wish to add a third disk to this for redundancy, so when one disk fails, the system still has two disks ...
2
votes
3answers
226 views

RAID level hard drives?

My Motherboard has 4 internal SATA ports. I am considering a linux software raid. I plan to use this for backing up my work movies, music etc Do I need to spend the money on RAID Level drives? Or am ...
2
votes
1answer
1k views

MDADM RAID-0 does not increased size after grow on AWS Linux with EBS

I wanted to grew a Raid0 from 2 disks to 3 (each 1TB EBS on Amazon AWS) but the size did not change thereafter. The RAID started with two disks sdc and sdd and the new one was sdf. Here is the grow-...
2
votes
1answer
418 views

Connecting 6 hard drives with 4 available SATA connections

I'm building my first home NAS right now, and I have a Mini-ITX motherboard with 4 SATA connections. I'd like to connect 6 hard drives in total and (preferably) use software RAID. My question is: ...
2
votes
1answer
428 views

8 hard drives, very same model, software RAID0, terrible performance

I have 8 hard drives in my PC, assigned as storage. Three of them are attached to the mainboard. Four of them are attached to a controller [ SiL 3114 ] One of them attached to an another ...
2
votes
1answer
487 views

How to plan a RAID 5 for expandability?

I'm planning on building a home file server with a few 2 TB drives and I wanted to use software RAID 5 under Linux (most likely ubuntu). Before I start, I wanted to know how easy is it to expand a ...
2
votes
2answers
2k views

Should I use Bios or OS (Win7) raid on my new computer

Which is better in terms of performance first and reliability second, the onboard bios RAID on an Intel 1156 P55 motherboard or using the built in RAID options in Windows 7 Ultimate. I will be using ...
2
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3answers
3k views

RAID-1 - hardware or software?

I've been looking to set up a pair of RAID-1 (mirrored) drives for data archiving. My first reaction was to just go out and get an enclosure with 2 drive bays and a built-in RAID-1 controller. After a ...
2
votes
2answers
91 views

Which RAID setup to use for a build-computer?

I am wanting to setup a computer(actually multiple with the same setup) to build and compile programs. Security of the data is not important, and space for the most part is not important. (as in, 40G ...
2
votes
2answers
3k views

Convert RAID 1 to RAID 10 in mdadm

In my current Ubuntu server, I have 2x 2TB Western Digital RED hard drives in a RAID 1, using mdadm. I would like to add 2 more 2TB RED drives, and convert it to a RAID 10. I realize I would have to ...
2
votes
1answer
26k views

How? Mount, Find & Recover DATA in HDD outside of Synology Box

How? Mount, Find & Recover DATA in HDD outside of Synology Box I had originally posted this question here on Synology Forums and no real solution was suggested except a Linux / RAID based ...
2
votes
1answer
3k views

Degraded RAID5 and no md superblock on one of remaining drive

This is actually on a QNAP TS-509 NAS. The RAID is basically a Linux RAID. The NAS was configured with RAID 5 with 5 drives (/md0 with /dev/sd[abcde]3). At some point, /dev/sde failed and drive was ...
2
votes
2answers
616 views

Where is the Missing Disk Space on Linux Software Raid

Purchased (4) 2TiB Drives (actual disk space) and created a RAID5 array expecting to have 6TB of useable disk space, however actual useable space is 5.46TiB. So, the question is where did the disk ...
2
votes
1answer
145 views

Why make a partition at all for mdadm/raid?

i have 4 disks, sd[a,b,f,g] of various sizes that I want to 'merge' together. I am using mdadm to achieve this. my question is, what's the difference between -- mdadm --create /dev/md0 --level=...
2
votes
1answer
9k views

XFS Can't Read the Superblock

I awoke this morning to find an email from my RAID host (Linux software RAID) telling me that a drive had failed. It's consumer hardware, it's not a big deal. I have cold spares. However, when I ...
2
votes
3answers
10k views

How do I create a complete disk mirror in Windows Server 2008?

I'm trying to mirror a full Disk in Windows Server 2008, however I don't see any options to mirror a full Disk, only Volumes. Both disks are the same brand, size and are configured as Dynamic Disks, ...
2
votes
1answer
2k views

Auto-rebuild RAID6 with MDADM

I have an openSUSE 11.3 Linux computer with 5 disks of 1TB (WD enterprise disks) in it. With mdadm I configured a RAID6 device. Now, after a lot of thorough testing, I've noticed that when the ...
2
votes
2answers
730 views

Removing a disk from an Ubuntu mdadm RAID marks the array as inactive, instead of degraded

I'm setting up a mdadm raid 1 array on Ubuntu 14.10 under VirtualBox. Everything works fine: The raid 1 is set up with /dev/sdc1 and /dev/sdd1: Personalities : [linear] [multipath] [raid0] [raid1] [...
2
votes
1answer
2k views

Boot partition for Software RAID 1

According to this tutorial: http://edoceo.com/howto/mdadm-raid1 as well as the answer to this question, ...it is necessary to create a separate boot partition if you want to boot from a software ...
2
votes
1answer
2k views

Does windows 7 disk manager mirror disk or partitions?

My servers Raid 1 disappeared when I did a bios update, And now in order to get it back I have to format my 2 * 3tb hard drives. Which isnt really a solution for me. So I have desiced to try and make ...
2
votes
2answers
4k views

Are there any good software-based RAID 1 mirroring alternatives to Windows 7 Computer Management?

I only have Windows 7 Home Premium, not Professional, so the mirroring option isn't available in Computer Management. Are there any good alternatives? It's possible RAID 1 is overkill for what I'm ...
2
votes
1answer
293 views

Win7 soft-RAID failed, computer “jumped back in time”

I just rebooted my computer and upon logging into Windows, things seemed a little bit "off". I figured out rather quickly that everything was like it was two weeks ago. It was literally like ...
2
votes
2answers
340 views

Recover from failed recovery of software RAID5 failure

I have the pleasure ;-) to have been handed the task to try to get data off a server that had a RAID5 array problem and a failed attempt to recover it. Background: the computer in question is some ...
2
votes
1answer
1k views

external drive enclosure -> software RAID 5?

I have two older PCs on my LAN posing as 'servers'; one running FreeNAS off a USB stick using three 500GB HDDs in a ZFS RAID-Z pool serving as storage for the LAN and one running Debian Lenny with an ...
2
votes
1answer
578 views

Software RAID 5 with Multiple Partitions (one encrypted partition)

Can I have multiple partitions using Software RAID 5 on an Ubuntu Server? For example, say using a 4 drive RAID 5 setup, I want one massive partition for storage and a second smaller but encrypted ...
2
votes
2answers
840 views

Converting software RAID1 to hardware RAID1 without losing data

I have a home server running Ubuntu Jaunty and housing a 2 x 2TB RAID1 array. It is a software RAID but I'm looking to pull out those drives and put them in a external RAID enclosure to save space. My ...
2
votes
2answers
3k views

misaligned raid partition in Ubuntu 10.04

I attached two identical hard drives to my linux machine. Then using gparted I formated the first 1024 mb at the beginning of each drive as linux swap space. Then I went into system->administration->...
2
votes
1answer
151 views

Optimal Raid Setup / Usage suggestion [closed]

[Edit] So rather than have HDDs goto waste, I'm looking for some suggestions of implemenation of a RAID setup. Questions to be answered: Using Windows 7 and the following HDDs, is the following ...
2
votes
1answer
123 views

BTRFS, Files on a single drive in array but keep 2-parity?

Is it possible to setup a BTRFS array of disk but tell it to keep files on individual disks instead of stripping them and still keep a 2-parity? The idea is that if three drives die, the files on the ...
2
votes
1answer
259 views

Hard disk error in Intel Matrix Storage Manager

I have two hard disks, both 160GB, and with Intel Matrix Raid on these two disks, I created two volumes Volumne0 Raid1 Volumne1 Raid0 Now, one of the hard disk shows error in the Intel Matrix Raid ...
2
votes
2answers
504 views

RAID on partitions or devices

I plan to create a software-only Linux MD RAID10 array from two identical 1TB discs (using mdadm). Should I create it directly on the two disc devices (/dev/sda and /dev/sdb) or create a partition in ...
2
votes
2answers
525 views

Reduce loadtime in games merging two folders across ramdisk and local disk

I've found a program to emulate a drive in my memory, RAMDrive. RAMDrive creates a drive (G:) on my computer, which allows me to have super fast read/write on that drive. Now I was thinking I could ...
2
votes
2answers
1k views

How to set up software RAID 1 on Ubuntu 12.04?

My primary partition is sdb. I add new disk (sda) and formatted it as shown below: fdisk -l Disk /dev/sdb: 250.1 GB, 250059350016 bytes 255 heads, 63 sectors/track, 30401 cylinders, total 488397168 ...
2
votes
4answers
6k views

How do I mount a software RAID1 (mirror) created by windows in Linux using mdadm?

I'm switching my Windows server to Ubuntu and am trying to get my software RAID1 (mirror) that I created in Windows to show up in Ubuntu. I have read that this is possible here using mdadm, but I'm ...
2
votes
2answers
15k views

How to install software RAID using Mint Live CD

I wish to install Linux Mint 11 with RAID 1 for my /home. I was wondering if I can install RAID 1 during the installation from the Live CD. I have managed to set up RAID from the Live CD and install ...
2
votes
1answer
625 views

Software RAID and backup altogether

In this thread I've got most valuable tips regarding the home RAID solution options as well as their pros and cons: RAID for home use I've figured out for myself a few important points (the ...
2
votes
2answers
2k views

Raid 1 mdadm (linux) disk failure recovery: DRDY err (UNC) keeps repeating can't reach login

Over the weekend, I got several emails from our network storage server (just a custom box with CentOS 5 and 2 2tb drives software raid 1) indicating SMART detected issues with one of the drives. I ...
2
votes
2answers
1k views

What versions of Windows support built-in disk mirroring?

I know that some editions of Windows has built-in support for disk mirroring. But on my computer with Windows Vista, I can't find it. What editons of Windows has built-in support for disk mirroring (...
2
votes
2answers
564 views

Can I configure a partition of a drive to use RAID0 and still use the left over partition for storage?

I want to set up a RAID0 configuration. I only have a 80 GB drive and a 750 GB drive. I was hoping to only RAID 80 GB of the 750 GB drive so that it would match the 80 GB drive. I heard that this may ...
2
votes
0answers
398 views

Redundancy: LVM+mdadm or LVM internal RAID

The task is to create LVM storage for virtual machine images. So LVM will be used in any case. There are two ways LVM providing redundancy: block mirroring lvcreate -m 1 --mirrorlog mirrored -n ...
2
votes
2answers
1k views

Is it safe to use Truecrypt to encrypt a raid 5 array?

I have a raid 5 array(software in windows server 2008). I have encrypted it using truecrypt, and it seams to be working fine, however, I am worried what will happen when i lose a drive. Will truecrypt ...
2
votes
1answer
1k views

Unable to reassemble md raid on drives pulled from ReadyNas Duo v1

I'm toying with a ReadyNAS device that I've recently acquired. It is a SPARC-based box, and it runs linux. As device is pretty slow, I've pulled one drive out of array, hoping to populate it with ...
2
votes
2answers
407 views

Is it possible to migrate a software RAID5 array to RAID0?

So last year I helped my father in France set up his Office machine with a RAID5 array of 3 identical 1TB drives (for a combined space of 2TB). Last week one of the drives died, he's using the machine ...
2
votes
1answer
2k views

Having trouble with EXT4 on LVM on software RAID 5 (corruption)

Here's the quick and dirty of my problem. I'm using Lubuntu 12.04, Xubuntu 12.04 and plain Ubuntu 12.04. Tried with generic kernels 3.2.0-25 and 3.2.0-26. This issue persists on all 3 variants which ...
2
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2answers
3k views

How to setup RAID 5 - Windows Home Server

I am planning to install Windows Home Server 2011 on my new mini server. I have 3 x 2TB hard drives and another hard drive for the OS. I can't find any tutorials on how set up RAID 5 on Windows Home ...