Redundant array of independent/inexpensive disks; a technology which utilizes multiple disks to provide increased reliability, performance, and/or redundancy. Can be implemented either in software or with a hardware controller.

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Between RAID6/ZRAID2 and RAID10, is either harder on the disks themselves than the other?

as far as the user is concerned, you're trading off a bit of performance for a little better fault tolerance. But I was wondering, on a four disk array, do either of these solutions cause more stress ...
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37 views

grub fails to find btrfs-filesystem after adding new devices

Having my server (Ubuntu 15.04) equipped with two 1TB HDDs in raid1, I added yesterday two new 4TB HDDs. After adding those with btrfs device add ... I rebalanced the system with btrfs balance ...
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38 views

Ubuntu RAID 10 - unable to assemble

Here's a brief history of how I got here: 4x disk Ubuntu 12.04 software RAID10 with 5x partitions (md0 - md4) 1x disk died mdadm --fail > mdadm --remove > physically removed drive and replace mdadm -...
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107 views

VMware ESXi running on an SSD with RAID 10 HDDs?

I'm looking to setup a VMware ESXi server to host a bunch of VMs. The VMs will be used as various servers and malware analysis machines. Hardware I'm working with: Mobo: GIGABYTE GA-Z77-DS3H (5 ...
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2answers
55 views

Why aren't nested raids more common in home systems?

I never even knew this existed until now. But I know a lot of people have raid configurations at home, usually raid 0 for performance. Well my question is why aren't nested raids the suggested ...
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39 views

recovering a raid 0 after reinstalling windows 7

thanks in advance for your help, I have made a clean install of windows 7 to my system today to an SSD, along the ssd I have another ssd and 2x 1tb disks in Raid0. Only difference to the former ...
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52 views

Can I turn off my system drive for a few seconds? And how?

I want to find out what the most noisy component of my computer is, and though it could be the hard drives (since lowering the PWM of the fans and pump only helps a little). So I thought I could just ...
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17 views

RAID 5/10 setup

I am trying to setup a personal media server. I am thinking of working with RAID 5 or 10 ( I haven't decided yet). So my questions are What would be a recommended RAID setup? I don't need anything ...
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192 views

What is the correct command to create a volume with a specific size with the storcli utility?

On a LSI (avago tech) controller, how does one create a volume that is 10 gigabytes large using the command line utility storcli? The help states there is a parameter called size, but that fails to ...
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69 views

Why doesn't windows copy and paste consider and use all files?

I'm trying to restore my operating system from a back up disk. This used to be a part of a raid 1 array. I reactivated the disk and I have access to the files. The problem is, when I select all the ...
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44 views

Partitioning a 2-Disk RAID0 Array for Performance

I have an external RAID0 array that I use for media production on my MacBook Pro. It is a 2-disk Thunderbolt unit from LaCie (Big2). I chose to stripe the data for performance. Considering the type ...
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237 views

win 7 software raid 1, primary disk failed, what now?

I had a software RAID 1 between disc C: (the boot disk), and a spare disk. Now my main disk has died, and the spare disk won't boot. How do I recover my computer? Do I get an empty disk and install ...
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24 views

How to list HHDs as one large volume but remain independent

Is it possible to allow all hard drives to be used/listed as a single mount point in a Linux file system, but still remain independent of each other to a point of if one drive was disconnected all the ...
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603 views

Is it possible to upgrade the hard drives in a My Cloud Mirror NAS?

I recently bought a WD My Cloud Mirror NAS which includes 2 2TB hard drives running in RAID 1 by default. That effectively gives me 2TB of storage space which is plenty for now. I know I will ...
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1answer
785 views

Which raid is best for a high capacity multi media server

Which raid is best suited for a multi media server which will be streaming content (movies/music/large data) to multiple clients simultaneously (10 or so for now, more in the future). This server ...
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15 views

Is it possible to restart a frozen PC without triggering a RAID resync?

I'm using the built-in Intel Rapid Storage Technology (RST) RAID on my motherboard. Occasionally my PC will freeze in a way that requires a hard reset, usually due to some game triggering a graphics ...
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2answers
9k views

Software RAID Windows 10

I have always had a hardware RAID 5, but recently lost tons of data due to a drive loss, even after recovery steps. I am trying to set up a RAID 1 on 3 drives, and I do not see the option "Add ...
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3answers
149 views

Software raid and filesystem

What is the relation between software RAID and a file system? Are they related? Should I use a file system when I am using software RAID or I can access raided disk for RAW read and write?
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16 views

MSI Workstation WS60

Is there any way to change the C drive windows install to the larger normal laptop drive without a re-install, or even with a re-install? The problem is the 128 Gb pair of M2 SATAs in Raid 0 is too ...
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28 views

Raid 1 upgrade path?

I have a 3ware 7950-4i RAID controller configured as the boot drive for a Linux server running several virtual machines. It is populated with three 1 GB drives. u0 consists of p0 and p1 configured as ...
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130 views

SSD RAID and NCQ - is there any benefit in this configuration?

Current situation My System (Fujitsu Celsius M730) is currently using the following disk Setup: Intel C600 series chipset SATA AHCI Controller Port0: Samsung SSD 830 (latest firmware) Port1: DVD ...
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92 views

Raid 5 Nas or Raid 5 with FreeNas?

I need to buy or build a Raid 5 NAS system that is somewhat reliable. 70% of its use will be for storage (such as for back ups), the remaining 30% will be for accessing files from the Intranet. ...
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41 views

How is Data Recovered when a RAID array fails

I am thinking of using hardware RAID (levels 5 and 10) on my computers. What I don't get is how is data recovered when something goes bad and the RAID array fails (RAID Card problem or anything else). ...
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30 views

Do I need RAID1 in a galera cluster?

I have a 3-node galera cluster that supposedly performs synchronous write replication across the entire cluster. I am trying to figure out if it is a good idea to use a software RAID1 3-HD on these ...
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40 views

SSD won't show up in RAID utility but shows on Windows

I have two SSDs, installed on a ASUS z77v pro motherboard: A Samsung 840 and 850 EVO. My Windows 10 (64-bit) installation is on the 840. It works. It runs. I’m on Windows right now using it. But when ...
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997 views

Windows not finding HP Smart Array P410? (Windows 7 Ultimate, Server 2012, 2012 R2) HP EliteDesk 800 G1 SFF

Windows not finding HP Smart Array P410? (Windows 7 Ultimate, Server 2012, 2012 R2) HP EliteDesk 800 G1 SFF I have got myself an HP EliteDesk 800 G1 SFF (i5-4590 @ 3.3GHz, 8GB RAM) to use as a home ...
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47 views

can copy large file to nas

I'm trying to recover a faulty raid and I have successfully recovered it , I'm using a software called UFS explorer to rebuild the raid 5 and I can see the files when I try to save the recovered ...
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1answer
28 views

Remote backups via sneakernet

I have a NAS drive with two internal HDs set up in RAID 0 (seen as one complete drive) and two separate external HDs as backups. I plan to keep the backups off site. This means intermittently I want ...
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119 views

Internal Drive errors on specific drives; others are OK

I'm running Windows 8.1 All my drives are formatted NTFS I have several internal disk drives on my desktop. My C: (boot drive) is fine. But on my D: and E: drives (3 2TB Seagate drives in RAID 5 ...
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118 views

Debian Jessie with dmraid

So I'm having issues, I have the following... Windows 8.1 on RAID0 SSD 2 3TB WD Reds NTFS Formatted 2x WD Raptors RAID0 I want to install Debian on the 2x WD Raptors on the INTEL Raid. I can do this ...
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84 views

Does mdadm record array event history?

I received an automated email from the mdadm daemon: A Fail event had been detected on md device /dev/md0. It could be related to component device /dev/sdh. I find the wording strange. "could be"? ...
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35 views

Converting from single disk to software RAID without loosing data

A while ago I purchased 2 kingston 240GB SSDs which were on sale and I ran my windows from one of them. The other one has just been sitting there for almost a year now. I now want to RAID them but my ...
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42 views

Drive replacement on Intel Raid, Ubuntu errors

I have a RAID 1 system with two drives. The other drive was reported as failing so I replaced it. However, the rebuild seems not to work as expected. The Intel manager (pre-boot) marks the raid for ...
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1answer
81 views

Can not format dual mSATA enclosured mSATA SSD

I got a dual mSATA enclosure to 2½ SATA convertor from Startech. My hard drives are 2 SanDisk 64GB mSATA SSD's. I am trying to create a RAID0 array to load my windows 10 on it as my main drive ...
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23 views

Adding a device with data to a RAID0 config

If I have a device mounted in RHEL, how do I add another device to it and make it a RAID0 config? I know how to mount two new devices in a RAID0 config, but how do I do it with one device that is ...
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82 views

Folder Size 18.7gb but Size on disk 1.33TB - why/how could this have happened? Synology DS212 NAS RAID

To start - I am way out of my comfort zone trying to fix this problem but I am not sure what else to do! We have (2) 3TB hard drives in a Synology DS212 NAS RAID and are constantly running into ...
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1answer
129 views

How can I add a second hard drive to mirror the first one in RAID?

I have a HP ProLiant Gen8 MicroServer with a Hardware RAID Controller. The model is Dynamic Smart Array B120i/ZM. I currently have a single hard drive mounted. I would like to add a second identical ...
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56 views

Windows Mirrored Volume Failed

I have had a mirrored volume working in windows 7 for a few years now, and its been fine. I recently built a new pc with windows 10 and moved both disks(mirrored volume) over to the new machine. When ...
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60 views

Reboot Windows 7 remotely, stuck at Windows Boot Manager screen

I have set up a windows software RAID on my Windows 7 PC. I want to remotely reboot the PC, but when I do this it gets to the following screen and waits for user input: I can't see any countdown ...
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2answers
23 views

Raid 1 with two hard drives, which hard drive will overwrite the other?

I have two hard drives in a raid-1 volume that Windows 7 boots from (let's call them harddrive-a and harddrive-b). I got a third harddrive-c so that I could install Linux. To protect my Windows ...
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26 views

Is it possible to create striped array (RAID 0) with two parts on two disks (Windows 7)?

I have 2 physical disks. Part of one disk is occupied by Windows 7. I have two not allocated parts on these two disks of equal size. Is it possible to create striped array (RAID 0) with two parts on ...
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4answers
546 views

How to upgrade SSD firmware on Intel RST RAID 0 member disk?

I have a random bunch of SSDs working in an Intel Rapid Storage Technology RAID 0 to serve as my system drive. To setup an Intel RST RAID drive, in UEFI one must change the SATA controller to RAID, ...
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1answer
56 views

Can Windows 7 make good (high performance) use of RAID 1 between a SSD and a HDD?

Recently my hard drive died, and I lost all my files and I am really sad. Right now I am making a software 1 raid between my 2250MBps/1850MBps Pcie 3 8x SSD, and my 1TB 170MBps/170MBps hard drive. ...
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43 views

Change one disc to AHCI

I have one SSD that I'd like to use in AHCI mode, and two discs in RAID mode. Right now all discs are in RAID - the SSD, and two HDDs. I would like to change only one of them to AHCI? I found in the ...
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203 views

M.2 SSD Raid with PCI-E or SATA

I have recently bought Intel i7 6700k, Asus Maximus VIII Hero and Samsung EVO 850 M.2 SSD. I want to use SSD as a cache drive. So, I enabled RAID mode from AHCI. In BIOS there's this option: M.2 ...
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17 views

Dump all data to just one disc

Right now I have two HDDs set in RAID-0, each having 1TB. And I bought SSD drive that I want to connect right now. The problem is that I only have two SATA connectors. I have power connector, but not ...
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128 views

Windows Server 2012 R2 RAID 1 setup?

I currently own a computer that has Window's Server 2012 R2 at home. I am a Student and how I got Window's Server 2012 R2 was through dreamspark. Today I have a question. Currently I am only running ...
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2answers
83 views

Reallocate space using parted (no gui )

I'm running a Ubuntu server 14.04.3 LTS. The partitioning has been created automatically and now I have a problem with root directory space. There is a raid /dev/md3 with almost 2 TB free and a /dev/...
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76 views

Resume btrfs balance after interruption due to ENOSPC

I'm building RAID5 out of 3 devices (3.7TB each). I run: btrfs balance start -dconvert=raid5 -mconvert=raid5 /mnt/storage0 and it did process 3471 out of 3472 (sic!) chunks after which it failed ...
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145 views

Having SSHD while using an SSD working on AHCI mode

So I have an SSD working on AHCI mode. I'm planning to add an SSHD to my rig, so the question is do I have to change SATA controller to RAID mode when I got my SSHD? (to enable its Built-in SSD ...