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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D-Link DNS-320 Degraded RAID-1 will not rebuild…? any suggestions?

I'm not sure what caused it but it just keeps looping the rebuild process. Gets to 100% of re-syncing and then starts at 0% again... Just interested in a solution but not finding anything with D-Link....
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1answer
14 views

emulating an installed win10 on a raid0 volume from ubuntu

first of all setup: 2 ssd in raid0 set up from my motherboard (intel z97 + i5 4690k + amd r9 390); on this raid0 i have installed a copy of win10 64bit with his own bootloader 1 wd hdd with a copy ...
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1answer
29 views

Raid 0+1 on only 2 disks

Is it possible to configure 2 disk to have the redundancy of Raid 1 and the speed of Raid 0 ? In a way like this: Disk 1 Disk2 ---------------------- Data 1 Data 2 --> Raid 0 ...
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1answer
33 views

What cannot have redundancy\high availability\failover in a server?

I know some big companies such as IBM, Amazon, and governments require a high degree for availability and data retention with their servers. To achieve this they use redundancy. My question is, what ...
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0answers
7 views

Running mdadm raid 6 with bcache layer on top. The raid had 6 drives in it and then an ssd for bcache

Output of /proc/mdstat Personalities : [raid6] [raid5] [raid4] md0 : inactive sdd1[1] sde1[2] sdi1[5] sdb1[0] sdc1[6] sdh1[4] sdg1[3] 13673677416 blocks super 1.2 unused devices: This raid ...
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2answers
51 views

Expand a Linux MD RAID 10 array to use larger disks

From what I understand this is possible, but I can't find a straight answer anywhere about how exactly to go about it, and I don't want to risk losing data experimenting with it myself so I'm asking ...
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2answers
76 views

Moving a RAID 1 between RAID Cards

I have an HP DL380 G6 with the 410i internal controller. I have an array configured with 2 drives as a RAID 1. This logical drive is my boot drive. I've recently installed a P800 raid card and want ...
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0answers
13 views

CoreOS HP410 RAID1 device not added (-19)

i face problem 'addition failed -19, device not added' > hpsa 0000:07:00.0: addition failed -19, device not added. > HP P410 controller SSDSmartPathCap- En- Exp=1 This hpssacli sees no ...
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0answers
307 views

How do I mark a disk as OK (Asus/Intel Software RAID)

I have an Asus P8Z77V_PRO mobo using Intel RAID (Windows 7 x64). A drive has an error, but after examining it with SMART tools, I'm satisfied the drive is fine. Unfortunately, I can't figure out how ...
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2answers
4k views

Intel Rapid Storage / Smart Response SSD caching issue

Background Recently built my own PC. It works! Almost. It's been a while since getting into the guts of these things, so I'm familiar but may be missing something simple. FYI, I don't care about ...
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2answers
5k views

Can I setup two RAID arrays on a single intel z97 controller?

Let me preface this by saying that I have never setup a RAID array myself, other than by using software RAID 0 in Windows for a set of storage drives. I purchased a new ASUS Maximus VII Hero ...
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1answer
4k views

Cloning HDDs from a hardware RAID array?

Is it possible to clone the individual disks of a hardware RAID to get a copy of the contained array? I have an Adaptec RAID controller. I put it offline, attached the RAID member HDDs to a regular ...
2
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2answers
28 views

ZFS hot spare not working

I have the fallowing ZFS test pool setup in my vm: NAME STATE READ WRITE CKSUM pool DEGRADED 0 0 0 mirror-0 DEGRADED 0 0 0 sdb ...
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2answers
1k views

Linux/OS X dualboot on a MacBook Pro with RAID

I'd like to install Gentoo Linux on my Macbook Pro while keeping my current OS X installation. I currently have OS X installed on a RAID 0 on two 160GB Intel SSDs and I'd like to create a new ...
2
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1answer
390 views

Test RAID array read write speeds from boot disk

I have a VMware ESXi server with a local RAID 5 datastore formatted with VMFS. The RAID controller is a DELL PERC H710 hardware controller and the server is an R620. I get abysmal write speeds, ...
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0answers
13 views

Restore non-RAID Partition's image into a RAID partition

I have Windows 10 installed on a Primary partition (non-RAID).( Windows is installed on 1 Partition only ) I create a backup of this partition. After on the same Pc , i create a structure RAID-0 with ...
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0answers
18 views

Raid only half a Disk on 2 Disk Synology NAS

I currently have a Synology DS215j 2Bay Nas populated with 2x4TB Drives using Synology's SHR (similar to RAID1), and therefore 4TB of redundant storage. There are 2 categories of Data on the Nas: "...
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0answers
1k views

Using mixed disks and OpenFiler to create RAID storage

I need to improve my home storage to add some resilience. I currently have four disks, as follows: D0: 500Gb (System, Boot) D1: 1Tb D2: 500Gb D3: 250Gb There's a mix of partitions on there, so it'...
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2answers
49 views

Mounting raid5 disks without one of raid's member

I have to read data from disks, which are raid5 members. I'm wondering if there is posibility to read data from those disks somehow, but one of those disks is just broken. I was trying to mount some ...
3
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2answers
4k views

Very slow volume expand on Synology ds2413+

I've posted this elsewhere on the internet aswell, and will obviously reply in both places if a proper solution is found. I am attempting to expand SHR volumne (2x4TB, 1x2TB) with additional 4TB ...
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2answers
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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0answers
19 views

Moving Raid Array from Linux to Windows

So, I have a bit of a long round about question here.. TL;DR: How do I check the file system format of an unrecognized drive in Windows? I had a Linux Mint 17 media server setup with a RAID1 ...
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0answers
14 views

Buffalo Linkstation NAS (LS-CHL) died, trying to recover data from disk

I have infamous Buffalo Linkstation (LS-CHL) NAS which had one 500GT disk in it. And one day it started to flash red lights and not responding over the net. I tried to put it in different "recovery ...
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1answer
21 views

Calculate usable storage space with different size drives in Windows Storage Spaces?

I'd like to create a parity storage space in Windows 10 with a 5 tb disk and two 3 tb disks. Is there a way to calculate how much usable space this will give me?
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2answers
35 views

How would one Raid 0 two ssd's and effectively back them up to a HDD

So I've read a lot of similar questions, both here and elsewhere, and none of them quite answer my scenario. I have 2 500GB SSDs and 1 1TB HDD. What I would like to do is RAID 0 the SSDs into a 1TB ...
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4answers
126 views

Windows XP corrupts registry every several hours

There is a Dell XPS 400 with Windows Media Center installer. It is installed on RAID (Intel Matrix Storage) which is built-in chipset south bridge. Raid has two 150 Gb WDC drivers connected as ...
3
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2answers
388 views

Mirror / backup laptop btrfs drive to sometimes connected external USB disk

I have a laptop with an internal drive using Btrfs. There are several subvolumes and snapshots on here. I want a copy of this drive to be made periodically to an external USB disk of approximately the ...
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1answer
61 views

Is a btrfs RAID1 mountable if the added device isn't available/offline/failed/degraded?

Assume I created a RAID1 with btrfs's functions (btrfs device and btrfs balance subcommands instead of mdadm) like so: btrfs device add /dev/sdxZ /dev/sdxY btrfs balance start -dconvert=raid1 -...
5
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2answers
42 views

Convert FreeBSD ZFS two-disk unmirrored pool to mirrored

I have a storage pool aptly called storage with two disks in it. Originally, I wanted to add the second disk as a mirror but did the ZFS newbie mistake of using zpool add storage <device> ...
5
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1answer
3k views

Btrfs: RAID 1 on 3+ devices

I currently have a Btrfs partition with four devices: three 3 TB drives and a 4 TB drive. Data and metadata are RAID 10, so I have 6 TB of usable space, which is almost full. I'd anticipated that RAID ...
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0answers
20 views

Adaptec 1220SA RAID 1 degraded - should I try to rebuild?

I've got an old Windows 8.1 PC with an old RAID 1 array and a very low-end Adaptec 1220SA RAID controller. Adaptec Storage Manager (screenshot #1 below) shows one drive failed, the other OK. There's ...
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1answer
21 views

How to Know the Progress of RAID1 Rebuild on Windows?

I have just installed Windows 10 on my RAID1 array which has 2 disks. And I'm now doing some tests. I unplugged one disk and booted into the OS, then replugged it back, and restarted. Now I see the ...
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0answers
5 views

How do I setup a Techus N7700PRO NAS with 7 x 1TB disks for redundant cloud file storage on my network? (Never used a NAS before)

I was given a Techus N7700PRO with 7 x 1TB WD Caviar Blue drives in it all in healthy condition. Crazy good score, right? Problem is I've never setup a NAS before and I basically want to make myself a ...
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1answer
6k views

Synology NAS station - how to mirror 2 HDD (Simple how-to)

I have the following problem with my Synology disk station: I had one small HDD in Synology Diskstation, so I removed it. I bought 2 new HDD with the same capacity. I transferred backup from old ...
2
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1answer
2k views

Expand Synology SHR volume with varying disk sizes

I'm looking for a clarification on SHR and how it handles expanding a volume when the volume contains varying disk sizes. I've read the Synology Documentation and it still isn't clear, because their ...
0
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1answer
89 views

Is running a linux VM on a windows machine for btrfs software raid a good idea?

A bit of backstory: I used to have a raid 5 array on my main (win 7) computer using a highpoint raid controller. I used to think if any part died I could replace it, so I was safe as long as I did not ...
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1answer
141 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
24 views

Creating a “virtual” RAID 0 on top of two drives in Windows?

I would like a very fast area for large files to be stored quickly across multiple drives (preferably temporarily). It would be like how a RAM disk takes up memory until you disable it, but across two ...
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1answer
673 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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0answers
28 views

Improving Sequential Writes on RAID5 - Write back to SSD?

I have a RAID 5 array consisting of 3x 5TB WD Red NAS drives. RAID 5 is done via a Dell H710 HW RAID card (LSI 2208 I believe). This is a home setup, and the pool is only really used to save ...
0
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1answer
448 views

Dell Poweredge SC1435 Hard-Disk failover…what is that?

I don't think this server has RAID...or does it? In the BIOS you have an option for Hard Disk Failover...what does that do? Is that RAID1? Does anyone have any ideas on this one? There is no RAID ...
0
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2answers
36 views

RAID 0 - what happens if mainboard changes?

I had an MSI z77a-g41 mainboard with Ocz vertex3 raid 0 configuration. Yesterday, my mainboard stopped booting. It seems something is wrong with the mainboard because there is no video, no BIOS ...
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2answers
181 views

Intel RAID controller failing to diagnose faulty disk

On my system (running Windows 7 x64) I have an Asus Z87 Deluxe motherboard, with a built-in Intel RAID controller; my config includes a Kingston 240GB SSD disk for the OS and two Western Digital 4TB ...
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0answers
15 views

Ibm V3700 SAN / Howto add additional disks in existing pool [migrated]

We have IBM v3700 San Storage(300gb x 36 SAS HDD) connected to Four servers (windows 2008) via FC. Each server have few disks allocated in RAID5 mode. There are 8 unused (candidate) disks available ...
3
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1answer
76 views

Is it possible to separate SSDs from HDDs in a RAID array?

Is it possible to make 2 SSDs work together separately from 2 HDDs in a RAID array? I have motherboard (ASUS Z170-A) that supports RAID and would like to have a configuration like this: RAID 0 ...
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2answers
2k views

Windows 8 wrongly detects my Raid1 HDD as Solid state disk

I have upgraded my machine from Windows 7 to Windows 8 and then Windows 8.1 (this is the only available upgrade path to keep my files, settings AND applications). My system is setup as follows: 2 x ...
0
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1answer
59 views

Xpenology (Synology) fast read speeds slow write speeds

For 2 years I've used a Xpenology server which has an Raid 0 volume and works perfectly fine. Gigabit read and write whitout any problems. Now am I installing a Raid 5 volume 3x4 tb WD red. I'm not ...
0
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2answers
580 views

mdadm one disk sometimes is missing after reboot

On a debian system my home directory is on a raid1 md array. After creation it worked fine for some time, but once the second drive disappeared from the array. # cat /proc/mdstat Personalities : [...
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1answer
1k views

Intel RAID verification and repair

Intel has a web page that describes how its Rapid Storage Technology verifies and repairs RAID volumes. For RAID 1 and RAID 10, it does the following: Data on the mirror is compared to data on ...
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0answers
13 views

Clonezilla and software RAID array theory

I don't have enough hardware to try this out myself, but since Clonezilla doesn't support backing up software RAIDs, I've been trying to think of ways to backup my RAID0. Since all of the information ...