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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Boot up from RAID with new motherboard

our computer was about to die (it beeped 5 times and then rebooted, AMI beep codes say that is a failing motherboard/cpu) so we decided to get a new motherboard and CPU, a Gigabyte F2A88XM-DS2 with ...
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44 views

How do you increase harddrive space on an Intel hardware RAID 1 with larger disks?

I have an old RAID 1 volume from about 7 years ago. A while ago I replaced one out of two drives with a drive with 4x the size and then recently I replaced the second two out of two disks. Both of the ...
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43 views

Migrating to a bigger hard drive

My PC is a Dell Inspiron T3500, running a Xeon 3530, and 12GB DDR3 RAM. I am currently running two WD Velociraptor drives, 300GB each, in RAID format, so it appears as one ~600GB hard drive on my PC. ...
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49 views

Debian: grub-install with LVM, crypto, and stripe

I'm working on getting Debian 8.2 installed on my system, and am having trouble with grub. It looks like the OS installs fine, but once I get to the first boot, I just sit at a grub prompt. Here's ...
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155 views

SSD TRIM support on RAID-1 array through Intel RST

I'm making the jump from HDDs to SSDs on my home desktop, and I'd like to retain a basic level of redundancy (RAID-1) like what I have with my HDDs. Right now, I'm using Intel's RAID controller on my ...
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32 views

Does expanding capacity of RAID 5 format all the drives?

I currently have three drives installed in My Cloud EX4 configured to RAID 5. However I would like to install one more drive. The only way to be able to use all of these drives is by selecting "Expand ...
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1answer
32 views

Migrate non-redundant data to larger disk on Synology NAS

I have a Synology DS213j using two disks I had to spare, 2TB and 1.5TB. These are nearly full so I plan to replace them. To put all data onto the new disks I just wanted to connect the old disks to my ...
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30 views

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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2answers
49 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
39 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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29 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
264 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: ...
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1answer
89 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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1answer
27 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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1answer
47 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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1answer
33 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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1answer
24 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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33 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
19 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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16 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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2answers
25 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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57 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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1answer
37 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
35 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
37 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
12 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
70 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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2answers
47 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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2answers
34 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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2answers
70 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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1answer
19 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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1answer
104 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
201 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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11 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
764 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
137 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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13 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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24 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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1answer
82 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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2answers
67 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
38 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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1answer
18 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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1answer
32 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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512 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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36 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
24 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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40 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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56 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
30 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"? ...