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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mSATA SSD + 2.5" SSD RAID

I was recently given a an Alienware M17x as a birthday present. The thing is a damn powerhouse lol. Anyways, I was thinking of getting rid of my desktop now since this laptop does everything it can ...
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64 views

Recommended RAID Mode for Small NAS Array

I am interested in purchasing a NAS array as a home server, and I am looking at currently 4x2TB drives in a 4-bay Netgear ReadyNAS array. I understand that RAID is not a backup and am will be backing ...
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2answers
129 views

Reduce RAID 5 NAS size (and number of disks)

We setup a QNAP TS451 recently in RAID 5 out of the box with 4x4TB HDs. It's turned out to be too much space and I'm interested in reclaiming some of the 4TB drives to use elsewhere. Wondering about ...
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74 views

How can I copy my hard disk to a RAID 10 array?

I would like to create a RAID 10 array on my PC. But since my target hard disk was purchased some time ago and there are newer models in the market, I want to create an array from brand new hard disks ...
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1answer
1k views

Windows 10 Storage Spaces Poor Speed

Using Storage Spaces under Windows 10 Pro, I am observing poor, nonsensical speed. A two-way mirror and a simple space across four drives on 2012R2 and 2016TP produce completely different performance ...
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24 views

Is this hard disk setup possible?

I'm trying to determine if this hard disk setup is possible with what I have. Goal: 1 SSD running OS(s) 2 (2TB 7200rpm) drives in raid 1 2 (6T 5900rpm) drives in raid 1 I currently have: 890GXM-...
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1answer
201 views

Hard drive requirments for a home NAS Streaming (Plex) server

I plan to build this server to store my Blu-Ray rips, personal photos and music. My original plan was to install Ubuntu but now I plan to run Windows Server 2012 R2 - Datacenter, I get it for free as ...
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48 views

Writing/reading data while rebuilding RAID array

I understand its best to limit disk activity as much as possible during a RAID rebuild/resync to reduce the risk of data loss and to prevent slowing down the rebuild process by adding more activity. ...
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57 views

Doing system backups by rotating the removal of a disk from a 3 disk RAID 1 system

Is it possible to create a system backup by creating a RAID 1 array of 3 disks with 1 of the disks always not connected to the system? Overall Procedure: Insert disks 1 & 2 into computer, ...
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45 views

Raid Controller Write-Back Cache Behavior

I am trying to understand how it is that the write-back cache on a raid controller can continue to yield a benefit while you're writing a huge random dataset. Let me first say that I understand how a ...
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101 views

Boot issue after restore to RAID and adding external HDD. Windows 7 Pro

Background info: I ran into an issue Ghosting a PC. The PC I am on is an HPZ440 Workstation, the PC has 3 hard drives. One SSD connected via PCIe and two SSDs connected via SATA and configured as a ...
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40 views

Intel RST/SRT: SSD-Cached Raid but OS on another SSD

I plan to setup my new Computer with a SSD cached HDD Raid 1. Like I understand RST/SRT I have to install the OS on the HDD then. Is it possible to install it on another SSD also? I've currently got: ...
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1answer
48 views

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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39 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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41 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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1answer
132 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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1answer
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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1answer
53 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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1answer
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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1answer
234 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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47 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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284 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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754 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
899 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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11k 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
153 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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138 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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95 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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1answer
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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32 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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43 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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1k 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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48 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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138 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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123 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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1answer
95 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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37 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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43 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
85 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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1answer
25 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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88 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
143 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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61 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 ...