Questions which refer to software RAID implementations.
2
votes
1answer
1k views
Access Western Digital My Book World II RAID array on my Ubuntu Linux
My WD My Book World II (Blue Rings) NAS has overheated, I think the motherboard is dead. I extracted the disks and plugged them in my desktop PC running Ubuntu Linux.
The disks seems to be alive, ...
1
vote
1answer
12 views
Windows Server Software RAID 6
I want to set up a software RAID 6 configuration, but in Windows Server 2008 it only lets me do up to RAID 5. In Server 2012 I saw they have this new thing called "Storage Spaces" which sounds neat, ...
0
votes
1answer
17 views
SATA Raid-0 Mixing SATA-II + SATA-III: Change jumper?
I have 2 SATA hard disks
They are 2 TB each.
Both are WDC Greens
Respective models of *EARS *EARX
EARX is SATA-III While the other is not.
While the raid does function as is, would there be any - ...
0
votes
0answers
25 views
How many drives could I attach to a SiliconImage SiI3124 based controller using port multipliers?
Would it be possible to attach twenty disks to a SiliconImage SiI3124 based controller (Lycom ST-125NR) using four Lycom ST-126RM port multipliers?
Wikipedia suggests a single 'port' can support up ...
2
votes
1answer
1k 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 ...
2
votes
1answer
4k 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 ...
0
votes
0answers
51 views
How do I safely move a Windows 7 software RAID 1 volume to a new PC?
I have 2 identical drives in an old PC running as a mirror RAID (RAID1) using the Windows 7 software RAID. These drives are data-only drives and are not being used to boot an operating system.
How do ...
1
vote
1answer
32 views
Can I go from noraid to raid1 to an existing Windows installation?
I am planning to switch from Ubuntu to Windows 7 for my HTPC and later add an extra 3TB disk.
Can I install Windows 7 on a 3TB disk and later add a disk and upgrade it to 2x3TB software raid1 without ...
0
votes
0answers
32 views
mdadm RAID monitoring no DegradedArray email
So, I have a couple of MDADM RAID arrays and I want to set up monitoring with email notifications for drive failures through sSMTP but I can't seem to get it working.
The system in question is a ...
2
votes
2answers
45 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 ...
0
votes
1answer
25 views
Adjusting mdadm priority on Ubuntu
I have Ubuntu 12.04 running on my new server, and it is setup to run off of one drive, then 2 drives that are mirrored using mdadm. When streaming files or media from it, it is extremely slow. I was ...
0
votes
2answers
1k views
Set up raid 1 after OS installation
I bought 2 Lenovo thinkstation E31 and I want to set up RAID 1 on them.
I added a hard drive for each. I went in the BIOS and set it to RAID then I pressed ctrl-l to start the raid manager but it ...
0
votes
2answers
31 views
software RAID in Linux - system partition on a separate drive?
I'd like to build a cheap NAS with two drives in RAID1 configuration using Linux software RAID. What are the pros and cons of having a separate system drive? My main concern is reliability of the ...
0
votes
0answers
25 views
Converting an mdam RAID1 to RAID 1+0
I want to convert a RAID1 array consisting of two rather large volumes into a larger RAID1+0 array using two new equally large volumes.
I know it is possible, but I've hard a hard time finding ...
0
votes
1answer
39 views
alerting you when a hdd is missing with software windows raid
So I open up Computer Management on my file serving computer in what has to be the first time in months or maybe even over a year and see that the mirror I had created of my 1TB HDD has "failed ...
1
vote
1answer
50 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 ...
1
vote
0answers
35 views
Software RAID failed to mount after apt-get upgrade
I have a software RAID 10 (jfs) on an ubuntu 12.10 and require some assistance repairing the RAID after it failed to mount after a routine apt-get upgrade followed by a reboot.
/dev/md0:
Version : ...
1
vote
0answers
75 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
1answer
32 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 ...
0
votes
1answer
92 views
How can I recover software RAID 0 after formatting my primary OS drive?
I was previously running Windows 7 on a machine that had 5 physical drives - 1 was the primary drive the OS was installed on, and the other 4 were a RAID 0 that was created through Windows 7 disk ...
2
votes
2answers
501 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 ...
1
vote
3answers
4k 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 ...
1
vote
0answers
864 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 ...
1
vote
2answers
6k views
Ubuntu 12.04 - Add RAID 1 Array on existing device?
I read How can I add a RAID 1 array in Ubuntu 10.04 and Installing Raid 1 on Existing Ubuntu Server. However, I only have the following 2 hard drives:
dev/sdb1 where Ubuntu 12.04 is currently ...
2
votes
3answers
2k views
Bad performance with Linux software RAID5 and LUKS encryption
I have set up a Linux software RAID5 on three hard drives and want to encrypt it with cryptsetup/LUKS. My tests showed that the encryption leads to a massive performance decrease that I cannot ...
1
vote
1answer
47 views
Linux software RAID: Does it work if device nodes change?
If, for some reason, hard disks change device identifiers (e.g. /dev/sda becomes /dev/sdb and vice versa) does this affect a Linux software RAID system? I.e. would the device still work (assuming boot ...
1
vote
2answers
478 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, ...
0
votes
1answer
70 views
Why can't I enable software RAID on a pair of SD cards in Windows XP Embedded?
I was hoping to set up software raid between a pair of SD cards (for redundancy) in an embedded device but as I understand it, I need to upgrade them to dynamic drives to do this.
The cards appear ...
4
votes
3answers
200 views
Three-way mirrored RAID in Windows 7?
I sometimes find bit-rot in some of my files. This is rare, but does happen. It annoys me that this is a) undetected for long periods of time and b) not fixable (except from backups), even with the ...
5
votes
4answers
921 views
RAID 1 on 2 external HDDs
I have an Ubuntu 12.04 server on my old laptop. Its HDD (160 GB) is too small for the file storage I need, so I'd like to attach a couple of external HDDs to it (through USB ports). The data I'll keep ...
0
votes
1answer
191 views
Windows 7 and software RAID 1 for system [closed]
So I have been using Linux software raid for ages, unfortunately now I need to install Windows 7 on a notebook and since the machine has two disks I was wondering how do I setup software Raid in ...
7
votes
1answer
212 views
Find files affected by bad blocks with md-raid5 and LVM
I've been doing a lot of research on this topic over the last few weeks - and I think I'm close to completing my recovery, as much as is possible at least. To make a long story short, I'll just ...
2
votes
2answers
289 views
Windows 7, raid 1 with advanced format drive
I had a nice software raid 1 (using windows 7 raid) working when one of my drives failed.
I replaced it by another one (WD blue 1 TB) which uses 4k sectors, and this makes windows unhappy (Cannot ...
2
votes
2answers
443 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 ...
1
vote
1answer
231 views
Windows 7 Dynamic Mirror Fails Redundancy
I have two 1TB HDDs forming a single volume in Windows 7 with a "Mirror" layout and a "Dynamic" type. The status is "Failed Redundancy" according to the Disk Management tool in the control panel.
...
1
vote
1answer
322 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 ...
1
vote
1answer
86 views
how to boot without assemblying raid arrays (or assembling them correctly)
I had one debian 6 system with two harddisks on raid1 set up via mdadm. built on simple partitions (/dev/sdb3, /dev/sdc3). at least on the old system, everything is tied up via UUIDs.
then i inserted ...
1
vote
1answer
285 views
Paritions “appear” in my raid 1 array after reboot, and the partitions in the array have changed names
I am moving my Ubuntu install to lvm over raid 1. I created the arrays with only 1 disk initially, planning to add the second disk later. I got the files moved and the system booted up succesfully on ...
18
votes
8answers
44k views
How to get an inactive RAID device working again?
After booting, my RAID1 device (/dev/md_d0 *) sometimes goes in some funny state and I cannot mount it.
* Originally I created /dev/md0 but it has somehow changed itself into /dev/md_d0.
# mount ...
1
vote
2answers
66 views
Is there such thing as a half duplex raid-1?
I was thinking the other day.
Then again, just now: So I thought "if I thought of it, someone else must have."
So this idea was, in a raid-1 mirror(ish),
One drive will write, and one drive will ...
1
vote
1answer
1k views
Setting up Intel RST on Ubuntu 12.10
I want to know if it is possible to set up caching using my notebooks mSSD that runs ubuntu 12.10 and Win 7 on the HDD. I use ubuntu much more and would prefer to cache files that it uses rather than ...
6
votes
3answers
3k views
Raid1 with active and spare partition
I am having the following problem with a RAID1 software raid partition on my Ubuntu system (10.04 LTS, 2.6.32-24-server in case it matters).
One of my disks (sdb5) reported I/O errors and was ...
1
vote
3answers
595 views
How to recover data from software RAID 5 disk partition
I have CentOS 5.8 on my computer, with 5x 1TB hard drives.
I used software RAID. (RAID 1 as a boot partition md0, RAID 0 as a root partition md1 and RAID 5 as /home partition md3).
Unfortunately one ...
-2
votes
1answer
419 views
Software RAID 1 broken, how do I fix this?
I'm running CentOS 6 x86_64. There is a software RAID 1 being used on the two internal 80GB drives. I got the following e-mail sent to me:
A DegradedArray event had been detected on md device ...
3
votes
2answers
244 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 ...
0
votes
1answer
57 views
Linux RAID Re-Shape Stopped
For the past 8 hours my mdadm re-shape process has been stuck. The output is:
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath]
md0 : active raid6 sdo[11] ...
0
votes
0answers
41 views
Do a Re-Build During a Re-Shape?
On my Linux software RAID 6 array, I'm currently mid-reshape and 2 drives have been marked as failed. I've swapped them out and added new ones to the array, which are currently marked as spares. The ...
2
votes
2answers
2k 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 ...
0
votes
1answer
41 views
Old Raid pops up and destroys everything
I have a root server with a mdadm two-disk raid 0 on Ubuntu. One HDD failed and I continued to work on the second. The server hoster somehow repaired the defect HDD and after a server restart it was ...
0
votes
0answers
322 views
Windows 8 Release Preview and broken software RAID-1 [closed]
After upgrading from Windows 8 Consumer Preview to release preview, the software RAID-1 array I had is broken.
All the data seems to be intact, but I can't get Windows to recgonise them as a RAID ...
