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.

learn more… | top users | synonyms

0
votes
0answers
7 views

RAID 6 Resync after system crash

I am running a home NAS server for data storage using linux (ubuntu) and RAID 6 configuration (using MDADM), however, occasionally the server crashes/hangs or experience a power-outage/interruption of ...
0
votes
1answer
7 views

Adding a parity drive to a RAID-Z1 array

Can I create an array as a RAID-Z1 and then later add another pairity drive to make it into a RAID-Z2? I’ve got 4TB of data on a drive I’d like to add into an array that I’m building out of fresh ...
1
vote
0answers
12 views

Recover Data Using Synology NAS

I bought a Synology DS415play around 2 years ago, and plugged 3x 4TB hard drives into it and set them up as a Synology Hybrid RAID. I've been using it to store my media on it and haven't touched the ...
0
votes
0answers
27 views
+100

Linux mdadm does not assemble array, but recreation of array does it

Maybe i'm not very clear in the title. When i'm trying to assemble my raid1 array with mdadm: sudo mdadm --assemble /dev/md0 /dev/sdc /dev/sdd It tells me that mdadm: Cannot assemble mbr metadata ...
0
votes
0answers
9 views

mounting a RAID array on a machine with conflicting device name

I have a machine with the following RAID arrays connected: xxxx@xxxx:~$ sudo /sbin/mdadm --examine --scan ARRAY /dev/md/0 metadata=1.2 UUID=6c2e2072:4db41563:d93a9ae5:dfb29ffd name=xxxx:0 ARRAY ...
0
votes
0answers
10 views

Using storage spaces like raid 0 + mirroring?

I have a few drives I'd like to use but I'd get more space out of them if (this assumes its possible) I could set the two smaller drives up like raid zero, then have the "raid 0 drive" mirror a x3 ...
0
votes
0answers
34 views

Is using multiple SSDs in RAID 0 good for reliability?

I'm asking this because, unlike HDDs, the main lifetime limiting factor of an SSD is write cycles. By using RAID 0, it's effectively doubling the amount of write cycles usable, and theoretically ...
0
votes
0answers
18 views

Failed Redundancy Error on Windows Server 2008 Mirrored Volume

So I helped a friend set up a home network. He has a Windows Server 2008 server with multiple disk drives set up. These drives are mirrored. Somewhat frequently the Failed Redundancy error pops up. ...
0
votes
0answers
28 views

Migrate MDADM array to another server with degraded state

I've been hacked few days again and, after analysis, I want to have my data back ! My previous server (the one who contains data on RAID1) have been compromised so I've decided to go with another ...
0
votes
0answers
15 views

Does URE apply in non-RAID setups?

According to this article (http://www.zdnet.com/article/why-raid-5-stops-working-in-2009/) if you have a RAID 5 setup and one of your drives decides to die you would replace the dead one with a new ...
-2
votes
0answers
15 views

which raid is best for video storage?

I have total 16 500GB hard disks. which raid is better for maximum storage usage and safe data? I need 4 logical partition.please inform me how to do raid,as I am new to it.
1
vote
0answers
12 views

Deploying Raid 0 on an existing setup

I have a server that's already in deployment and will be adding on a new hard drive. Redeployment isn't really an option because the server is a quanta server and doesn't can't support a KVM. ...
-2
votes
0answers
44 views

software RAID alternative with file-level striping (not block striping) [migrated]

Is there a software RAID alternative with file-level striping? I'd like the the total capacity of the disks in the set to sum up like in RAID-0, but i also want the individual disks to be still ...
1
vote
1answer
57 views

GA-Z170X-Gaming 7 or GA-Z170X-Gaming G1 (2x M.2 NVMe) + SATA

I have been considering building a new system with dual Samsung 950 NVMe SSDs and I am slightly confused about how the firmware on GIGABYTE supports this setup. Reading the manual for the Gaming ...
0
votes
0answers
12 views

Raid 1 with motherboard change

I currently have 2 x 1Tb HDDs configured as Raid 1. I want to upgrade my mobo and processor but am worried about still wanting Raid 1 with the new mobo. Is this possible with HDDs loaded with data ...
0
votes
0answers
24 views

Unable to UEFI boot once RAID is enabled

I have the current drive setup. 1 SSD that holds windows, 2 smaller SSD's that are RAID0'd and 1 platter drive. When I installed windows 10, all was good and things were booting fine. After a BIOS ...
0
votes
1answer
6 views

AMD Raid 5 drive not accessible in windows

I'm running RAID 5 using the onboard AMD RAID controller. Until this afternoon I have successfully been running windows, but after a system freeze and reboot, Windows went to system repair. Diskpart ...
0
votes
0answers
23 views

Does it make sense to create a raid array with SSD's?

We had a big problem in our local network at the school, many people were not able to login to their virtual machines. After a week our teachers found out that the problem was because of the raid ...
0
votes
0answers
38 views

Does Synology Hybrid RAID (SHR) have faster read/write speeds than a single HDD?

So I have 4 of the same drive (5400 RPM WD Red's) in SHR. Since there is data parity (same chunks of data exist on multiple drives), will the read speed be greater than that of a single drive? Could ...
0
votes
0answers
19 views

Switching from 1 SSD and 1 HDD to 2 SSD in RAID 0 and HDD

Current system: Windows 10, 1 SSD, 1 HDD, SATA set to AHCI mode in BIOS. How to switch to booting from two new SSDs in RAID0 and HDD? If I change the SATA mode to RAID in BIOS and configure 2 new ...
-1
votes
0answers
38 views

Microsoft Remote Desktop not writing to external hard drives?

Alright, so I have a computer with data for my research (OS: Windows 8.1). To transfer the data, I use Microsoft Remote Desktop to make a connection from my work computer (Mac Pro, OSX 10.10.3). The ...
0
votes
0answers
11 views

Need help choosing a storage configuration for a GIS workstation

I am currently building a workstation for a GIS friend. I feel comfortable choosing all of the other specs but would like help choosing what to do for the storage. Original thought was to choose a ...
0
votes
0answers
17 views

How to have SATA drives connected to an Intel RAID controller as removable drives

Hi: we have a Supermicro server with an Intel C600 series controller and we would like to use some of the ports and their disks as removable devices, to allow to copy media from one server to another. ...
0
votes
0answers
10 views

Install Ubuntu with PXELinux on Raid0 machine

I have built a server that give tha ability to install several Linux distro over the network. Everything works well but with Ubuntu 14.04. I used this guide : ...
4
votes
0answers
77 views

Size on disk way bigger than expected

I have read Why is there such a big difference between "Size" and "Size on disk"? but why is mine so different? My RAID5 is set at 128kb stripe, the volume is formatted at 64kb NTFS. I would expect ...
-1
votes
1answer
15 views

Protecting Data/Storage With a Better Data/Backup System

I've been putting up upgrading my system for data/storage/backups and I really want to deal with this as soon as possible. My Current System: Apple Macbook Pro (OS and Applications External Hard ...
0
votes
0answers
11 views

Former RAID 0 HDD not recognized (WD Red WD10EFRX)

I've bought two HDD drives (WD Red WD10EFRX) 1TB each and configured them to work in RAID 0 (stripe) on computer with Gigabyte motherboard. After that, I've decided to use them separately on another ...
0
votes
0answers
37 views

Windows 10 software raid 1 swapping disks explained

I'm searching and researching for answers for days now with little success. I've setup a Windows 10 software raid 1 with 2 Adata 240gb SSD disks. I expected that when 1 drive fails the other would ...
0
votes
0answers
32 views

Do I need RAID array to use ssd caching?

I have a 500GB Hard disk and a 32GB SSD, both shows as drive in the system. I want to be able to use the 32GB Drive for SSD-caching, via Intel Rapid Storage Technology. My Elitebook 840 g1 bios show ...
0
votes
0answers
12 views

Having two different RAID configurations in a NAS

I am in the process of buying a new NAS and I am putting down some requirements in order to decide which brand / model suits me better. Generally I can say that I am using two 'types' of files ...
0
votes
0answers
16 views

Will restoring a VHD file to a RAID configuration work?

I had Windows 10 on a 2 SSD raid 0 a while back. I turned my OS into a VHD and then I erased the drives and installed Linux and just used the VHD on Linux when I needed something like ms office. ...
1
vote
1answer
33 views

Extending RAID 1 Array with different size disks

Please note the following setup is Centos 6.6. I have an existing RAID 1 setup using 2x480GB SSD's. I Just had two new 800GB SSD's installed into the server. The existing RAID 1 setup i want to ...
0
votes
0answers
26 views

Make fixed USB drives dynamic disk

So at the moment I'm trying to RAID0 a pair of USB sticks I have. They show up in Disk Manager as Fixed Disks because of some driver filtering and it allows me to create a new striped volume, but at ...
0
votes
1answer
47 views

Synology two-bay NAS with existing data?

I'm considering purchasing a NAS, a Synology DS216 (or perhaps a DS216j). I have 2x 2TB drives available; one is full of data; the other is blank. I want to use the NAS in a RAID-1 configuration, to ...
0
votes
0answers
15 views

Degraded RAID5 Array Won't Rebuild

I have a simple RAID5 array with 3 drives. One failed so I replaced it using a drive just slightly bigger. I used CTRL + I to go into the RAID configuration and it came up with a prompt to rebuild, I ...
0
votes
0answers
16 views

Raid 1 size issues

I have 2 Seagate ST2000DM001 2TB SATA III, running in RAID 1, but the drives are showing different usage sizes 1 = 1.02TB of 1.80TB, and the other 2= 1.29TB of 1.80TB, what would cause this?
1
vote
1answer
54 views

Two systems freezing up: probably a RAID/MB sata controller failure?

I have two systems with approximately the same age with similar trouble: First system: ASUS P8h67-m-le mother r3 version i7 2600 (3,4ghz) 8gb ram ddr 3 (2x4gb dual channel) RAID 1 via ...
1
vote
0answers
34 views

AMD RAID 5 not booting after Windows Server 2012 updates

I've recently been working to reconfigure my home server. I decided to setup a RAID 5 for my operating system and virtual machines using my Asus M5A97 R2.0 built in AMD RAID. I was able to setup the ...
1
vote
0answers
84 views

How do I format a single raid 5 hard drive?

I'd like to know how to format a single former raid 5 hard drive If I boot up without the other raid 5 drives then Windows doesn't see it; it doesn't appear in Disk Management, or whilst booted into ...
0
votes
1answer
31 views

RAID array and change PCI-e slot

I have Adaptec RAID card in a PCI-e slot with a working array. However I need to change the PCI-e slot. If I change slot it will destroy my array?
1
vote
0answers
25 views

Disable RAID in custom kernel?

I need a Gentoo 13 machine to test some software on the platform. I'm not a Gentoo regular, so I'm suffering their procedures. I noticed the kernel spends a couple of seconds booting due to RAID ...
0
votes
1answer
112 views

How many drives do I need for ZFS RAID-Z2?

How much storage would I need if I wanted to use RAID-Z2? I am building a home server that will run FreeNAS with a ZFS file system, and currently plan to install 3 3TB hard drives. Does RAID-Z2 ...
0
votes
0answers
19 views

HighPoint RocketStor 6414VS always has one blue light on

I recently replaced my SI3132r5 RAID with the HighPoint RocketStor 6414VS system. On the front of the HP enclosure, there is a green light and a blue light for each drive. The green shows continuity, ...
0
votes
1answer
71 views

Failover strategies for home server (RAID, gluster, etc.)

I have a Raspberry PI at home, running Raspian and some servers like Apache, MySQL and ssh. The Raspberry is directly connected (LAN) to the home router and to a 2TB external ext4-formatted hard ...
1
vote
1answer
110 views

Acer Aspire S7-391: No bootable device

After fixing the motherboard of my Acer Aspire S7-391 i tried to boot it from the stock SSD. However, i get a screen which lists the details of RAID Volume and Physical Devices. The last line says ...
0
votes
0answers
50 views

Replacing H310 PERC controller with H710 on Dell T7600 Workstation

I have a Dell T7600 workstation running RAID 5 and the H310 PERC controller is throwing some errors. If I replace it, I'd like to upgrade it. If I replace it with the H710 (this is the only other ...
0
votes
0answers
34 views

Replace RAID disk on Supermicro X9SCL/X9SCM after SMART reporting CurrentPendingSector and OfflineUncorrectableSector

I have a Supermicro X9SCL/X9SCM with Ubuntu 14. It has 2 HARDWARE RAIDs (Intel SATA RAID Controller), and one disk of one raid is failing (of primary/boot partition). The SMART monitor is telling me ...
1
vote
0answers
25 views

Software or Hardware?

Hi guys i have a Server 2008 R2 thats a supermicro Duel Xeon 1366 box 12gb DDR3, that i use for file storage and WDS and little Vmware Workstation 12 stuff.. The issue am having its loaded with 2 ...
0
votes
0answers
34 views

List missing files on a degraded read-only btrfs mount

I have a btrfs filesystem spanning 3 drives. The metadata is using raid1 (mirroring), but the data is using single, so no mirroring or parity just spanning. For example: mkfs.btrfs -m raid1 -d single ...
1
vote
0answers
13 views

Which hard disk should I put on SATA3, the one with the OS or the one with applications?

I bought 2 new SSD disks to put in RAID0 on my desktop computer. While installing them, I found out I have only 2 SATA3 ports. So, I have to choose whether to put the SSD with Windows 10 on sata3 or ...