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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82 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 ...
4
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297 views

mdadm: Win7-install created a boot partition on one of my RAID6 drives. How to rebuild?

My problem happened when I attempted to install Windows 7 on it's own SSD. The Linux OS I used which has knowledge of the software RAID system is on a SSD that I disconnected prior to the install. ...
3
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0answers
321 views

lvmcache — one cache pool for multiple origin LVs

I have a shiny new computer with a not-that-large SSD (120GB) and two gigantic spinning-rust HDs (3TB each). I want to partition it as follows: swap (~128GB), operating system (~128GB), and data (...
3
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224 views

Linux access to Windows 7 dynamic volumes (striped or mirrored)

I'm considering setting up a dual-boot system for the first time for many years. My plan for the system is to set it up as follows: SSD for both system partitions 2 identical hard disks, split ...
3
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317 views

Use Intel Rapid Storage Technology with a secondary PCIe RAID card

I have Intel's RST on motherboard using RAID1 (2x2TB) and a boot drive. Trying to add another RAID1 (2x3TB) has failed since RST is limited to 2.2TB for RAID1. Now I've bought another RAID card in ...
2
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87 views

Import zpool with one unknown missing vdev_children.

My raid-z zpool was in degraded mode, I have added a new disk in the zpool with the command: zpool add -f uhuru-test da3 The problem is that da3 have been accidentaly erased and now uhuru-test ...
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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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243 views

Dual boot Win8/Linux on Asus Zenbook UX301 keeping intel imsm RAID0

I have Asus Zenbook UX301 with Win8 preinstalled. I would like to have a Linux installed in dual-boot configuration. However, Windows is using the notebook 2 SSDs as intel RAID0 (rom-based RAID, ...
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245 views

Parity errors after verify with Intel RST

I have Intel RST RAID 1 running on a Windows 7 machine. I have it set to do a verify and repair every week. I frequently notice parity errors, some weeks over 100 for a 1 TB RAID 1 array. I've ...
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232 views

how to trim the SSD disk of an hybrid Linux soft RAID?

We are considering implementing an Hybrid Linux Raid with SSD+HD by using the "writemostly" flag that supposedly makes the raid write further to the HD than to SSD while maintaining the benefits of ...
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74 views

Courting Disaster with fakeRAID10 (Dual Boot Win7,Ubuntu14.10)

Over the past several weeks (!), I have been trying to set up a dual boot with Windows 7 Enterprise and Ubuntu Desktop 14.10. The motherboard is a Sabertooth x79, and I wanted to install everything ...
2
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52 views

Dual boot, 4 disks, raid0

I have windows 8.1, and ubuntu 14.04 on the Disk 0. On ubuntu the four disks are merged. on windows i want to merge disks 1,2,3 (the windows half). but when i click to new striped volume, it says "...
2
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289 views

Debian shutdown takes a long time (RAID/crypt related)

I'm running Debian Jessie and recently my shutdown has been taking a long time. When I sudo shutdown -h now I'm sent to a blank screen except for a blinking cursor which sits for ~1 minute. It then ...
2
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93 views

RAID-0 setup, 1 broken drive, still 1 partition seems unharmed. Why?

It is not my setup and I do not know a lot about RAID, so I have trouble analysing what is going on here: What I observed: Two 1 TB HDDs are in a RAID-0 Array GParted sees 2 (1 TB) partitions ...
2
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0answers
1k views

Converting ASUS Zenbook from Win8 to Win7.. do i need raid drivers?

I've got an ASUS ZEnBook Prime, ASUS Zenbook UX301LA-XH72T 13.3" Touch Ultrabook and it runs 500GB SDD on RAID 0 configuration. This notebook is running Windows 8, and i desperately need to convert ...
2
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281 views

How does performance scale in a single column 2-way mirrored storage space as more disks are added?

In Windows 8.1 Storage Spaces, there seems to be pretty solid evidence that 2-way mirrored storage spaces have performance that improves significantly as more disks are added to the pool as long as ...
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128 views

For raid1, does btrfs check which partitions are on the same device?

I have btrfs on two partitions using btrfs's raid1 mode: /dev/sda3 /dev/sdb3 Now I plan to run btrfs device add /dev/sda2 /dev/sdb2, so I'll have four partitions: /dev/sda2 /dev/sda3 /dev/sdb2 /...
2
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384 views

Rebuilding a RAID 1 without data loss, recover from unallocated partition data

Mobo: ASUS P8Z77-M/Pro Gen 3 RAM: 32GB (4 x 8GB) Power Supply: corsair HX850 HDDs:Configuration before the problem: 1 x 128GB SSD for Windows 7 professional 64-bit 2 x 3TB drives in RAID 1 on the ...
2
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0answers
448 views

Trying to rescue data from WD My Book Studio II, raid 0

For a friend I'm trying to recover data from a Western Digital My Book Studio II external disk drive enclosure in raid 0 mode. At first I tried to rescue the data under OSX, the OS used by the ...
2
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0answers
123 views

SSD cache to minimise disk uptime

I am planning to build a small server for personal use, utilising a relatively large RAID-5/-6 (or RAID-Z/-Z2) array as main storage. The vast majority of workloads I envision for this would have ...
2
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3k views

Trouble Mounting (Intel) RAID in Debian

I am switching to Debian from Ubuntu and so far all is good, however, I can't get Debian to read one RIAD drives. I have three physical drives setup, using Intel Matrix Manager, for a RAID5 volume ...
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196 views

How to create RAID array using Disks app in Ubuntu 12.10?

Ubuntu 12.10 has an app called Disks that used to be called "Disk Utility" and "palimpsest". This tool used to be able to create RAID arrays, but on a clean install of Ubuntu 12.10, the app no longer ...
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688 views

Cloning Ubuntu mdadm RAID1

I would like to clone a pair of RAID1 drives created with mdadm. I've tried Clonezilla, but there's no native support for mdadm, so it resorts to using dd which is incredibly slow. I've looked for ...
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1k views

grub refuses to install to raid array

I have a software raid 0 setup with dual booting Windows 7 and Ubuntu 12.04. The GRUB bootloader that is already on the hard drive seems to work fine. However, since the latest package update for grub,...
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753 views

Booting Windows7 kernel from an initrd/wim image file

I'm wondering if it's possibile to have Win7 kernel and relative drivers (especially storage drivers) to boot from an initrd-like image file (maybe .wim?) and later then mount the windows root ...
2
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342 views

Reading or writing with a 4 WD5000AADS drive RAID 5 array drops to 0 speed

Edit, 10/31: Crash-- complete system lockup. Booted computer, had strange lag for visiting ANY webpage in Chrome.. Figured that either a network problem existed, or Chrome could not write to disk ...
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745 views

Windows Server 2008 RAID 1 failed. How do I fix it?

I have two 1.5TB drives, set up via a 4-bay external HDD case. It connects via eSATA and USB 2.0. I had it configured as a mirrored RAID 1 in Windows Server 2008. I transferred some data to it and ...
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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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90 views

Boot from old hard drive

The motherboard of my old computer died suddenly and so I bought a new computer. It has two 1TB HDDs on RAID 0 and comes preinstalled with Windows 10 Home. I wanted my computer to boot from my old ...
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76 views

Re-installing Intel(R) Rapid Storage Technology Driver

I just updated my bios on my MSI motherboard to the latest version without really thinking about the repercussions. I had the BIOS version of Intel(R) Rapid Storage Technology Driver installed on my ...
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0answers
15 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 ...
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0answers
13 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. ...
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0answers
76 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 ...
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41 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 ...
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143 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 ...
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0answers
38 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 ...
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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 ...
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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 ...
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41 views

RAID 0 random read speed did not scale with the number of disks

I did some RAID 0 performanace test On Dell PowerEdge 730xd.Info of the server is as follows: OS:CentOS 6.7 Memeory:32 GB RAID controller:PERC H730P Mini (Embedded) The command I used to test is ...
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42 views

Dual-booting OS with a shared RAID array

Hardware: ASRock H97M-ITX/ac motherboard Two 4TB hard drives One 120GB SSD So here's what I'm trying to do. I want to run my two hard drives in RAID 1 through the motherboard's hardware RAID, purely ...
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0answers
79 views

“Disk read error occurred” booting from hard drive or USB on Windows Server 2008

Here's the setup: an Athlon X2, 4 GB of RAM, and a 2x2 RAID 10 array of 4 500GB drives, which also houses the OS. After a usual reboot the machine didn't respond to ping. I connected it to a display ...
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124 views

On ubuntu add a HD to RAID5 but the size do not Extension

In this time I have a RAID5 using three HDs(2TB*3) and I was tinking to Add a new HD and Extension the size to 6TB, The existing HDs is [adb][adc][add]=[md0] Then add HD is [sde] Wat I did is,,, # ...
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69 views

Is there a way to boot from a GUID Partition Table on a Intel FakeRaid (IMSM) RAID1 configuration?

I have a Intel H170 based Asus H170 PLUS Motherboard that supports Intel FakeRAID. Attached are two identical Seagate 1TB harddisks on which I want to install ArchLinux 2015-12-01. The UEFI BIOS on ...
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0answers
43 views

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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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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83 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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46 views

Recover mdadm Raid5 array after one drive failure

I've been working through a number of posts on this issue but want a sanity check before trying to find a way to reassemble this array. I have a Mint 17 build with a raid 5 array for data storage (...
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290 views

Promise Pegasus R6 enclosure won’t mount on a Mac

I can’t mount my Promise Pegasus R6 enclosure on my Mac. One day it just disappeared. I can see the drive in disk utility but it can’t be accessed. When I verify the disk is says there is nothing ...
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94 views

File History not working on RAID-5 disks

I have a single hard disk along with a RAID-5 configured across 3 other disks. On Windows 7 I had shadow copies enabled and it worked great. After moving to Windows 10 I realized that File History ...
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51 views

XP unable to hibernate with system installed on LSI controller?

I'm trying to build a workbench machine that will multi-boot all sorts of OSes, one of which will be XP32, SP3. So first up, please don't tell me how silly it is to be installing this nowadays, ...