Questions which refer to software RAID implementations.
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13 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, ...
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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 - ...
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0answers
27 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 ...
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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 ...
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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 ...
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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
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 : ...
2
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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 ...
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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 ...
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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 ...
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0answers
870 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 ...
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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 ...
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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 ...
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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 ...
0
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1answer
192 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 ...
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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 ...
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1answer
232 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.
...
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2answers
444 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 ...
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1answer
323 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 ...
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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 ...
7
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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 ...
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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
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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 ...
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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 ...
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1answer
420 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 ...
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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 ...
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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 ...
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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 ...
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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] ...
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1answer
77 views
Software raid hard, change the primary hard drive
I have a windows server 2008, and 2 hard drive which set as RAID 1, now the primary hard drive report some error and have to change.
I have backup of major data but I have many setting on it's IIS and ...
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0answers
131 views
At what point does RAID 0 stop being fast and just become dangerous? [closed]
I have an interesting RAID setup across 2 harddrives on my home computer. I have /tmp and a mount point(/home/machines) for virtual machines (along with a few other mount points). These partitions I ...
0
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1answer
49 views
Apple RAID configuration vs Hardware RAID
I am researching external HDD's capable or RAID 1 to store a large amount of video content during overseas filming. After filming, the content will be brought back to the office and offloaded onto our ...
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1answer
3k views
How can one setup RAID 1 in Linux Mint 13?
I am trying to setup a Linux Mint 13 system using mdadm, with 2 1TB hard drives for a software mirror. I have tried following instructions found for Linux Mint 12, but the instructions fail to mention ...
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0answers
142 views
Is there any way to stop or pause Windows software raid re-synching?
I have two physical disks, each one holds two volumes, they are Windows software RAID1. E.g.:
Disk A: Partition1 Partition2
Disk B: Partition1-Mirror Partition2-Mirror
After an unclean ...
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0answers
16 views
Windows Server Software Raid Scrubbing [duplicate]
Possible Duplicate:
chkdsk on a mirrored drive
Is is possible to scrub/check the consistency of a windows server 2008 R2 software raid 1?
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0answers
53 views
RAID Lag-Behind Burst Write [closed]
I would like to setup RAID1 so that a ramdisk in the RAID configuration has occasional synchronisation with a HDD (that is very battery intensive to run, so I hope to let it spinout at a very small ...
1
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2answers
528 views
Debian installation and RAID5
I just bought a HP Microserver for use it as dns, http, vpn, file storage and also for backups of other computers at home. I already have 2 1Tb HDD's, so I thought to buy another 2 HDD's and install ...
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2answers
788 views
FreeNAS RAID5 Server - CPU Choice
What factors should you consider when choosing a CPU for a FreeNAS server? What are the implications and limitations based on CPU in this context?
Currently I'm looking to build a FreeNAS server ...
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2answers
989 views
Testing software RAID5 by pulling a HDD live. Bad idea?
I'm running Ubuntu Server 10.10, with software RAID5 and LVM running on top of that. I have four 2TB HDDs. I also have a separate boot drive with incremental full-system snapshots that run every four ...
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0answers
209 views
Windows 7 : soft RAID1 and dynamic volumes reliability
My setup is quite classic nowadays :
1 SSD for system/apps and 2 HDDs for data setup in a fake RAID1 array.
I also have a backup scheduled every week for the data drive in case it fails because I ...
1
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1answer
465 views
Take one disk of external mdadm data raid 1 to travel
I have a mdadm software raid 1 on external disks with media data.
For travel I want to take the data with me.
I imagine to set the raid and the underlying filesystem in readonly mode and take just ...
1
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1answer
83 views
RAID 1 : one device reads while the other writes symmetrically. What is going on?
Take a look at the disk throughput of this two disk software RAID 1 array in a Linux 2.6.26-2-686 Debian system :
As you can see, one device reads at a speed apparently close to its top throughput ...
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0answers
136 views
Adding software RAID to ubuntu server
Is there an easy way to ADD a RAID to an existing ubuntu server install?
My server installation of CentOS failed today and I am more familiar with ubuntu and the debian command line tools, so I think ...
0
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1answer
442 views
Consumer or enterprise hard drives for software RAID? [closed]
I need to set up a RAID 1 (mirroring) array with 2x 1TB hard drives. I'm going to be using the software RAID facility built into Windows Server 2003.
My question is very simple: should I use consumer ...
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1answer
147 views
Re-assembling a linux RAID on different system
I am in the process of shopping for drives for my Linux Server (CentOS 6.3). I think I have it narrowed down to RAID 5 or RAID 10 (have to see what hard drive prices do) and using the Linux Software ...
