Questions tagged [raid]

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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If I have a RAID 1, is it better to have 2 partitions or 2 logical drives?

I have the need to create 2 drives on a single RAID 1 (1 + 1 TB) configuration under Windows Server. I can create partitions using Windows Disk Management, or I can create logical drives using the ...
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Reassemble mdadm Raid after Reinstall OS

i created a level 1 Raid with this manual: https://wiki.ubuntuusers.de/Software-RAID/ Everything worked fine. No i installed a new OS ( from Ubuntu Server to Linux Mint ) and wanted do activate the ...
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zpool cannot properly import missing pool after system crash

I have a raidz3 zpool on Ubuntu 18.04 with the Ubuntu built-in zfs features, there was a system crash recently, I guess it's caused by an unavailable(failed) disk, and after rebooting, the pool was ...
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Multiple RAID volume on the same external HDD enclosure

I was thinking of getting a 5-bay external HDD enclosure with a RAID controller: http://www.orico.cc/us/product/detail/3623.html http://www.orico.cc/us/product/detail/6774.html Both of these models (...
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Add a new disk as mirroring (raid 1) to existing disk

I have disk1 with Windows Server OS and all my applications and DB installed and configured. Can I now add a fresh disk (disk2) to this existing disk1 and make it as mirroring disk (raid1) using ...
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Options for RAID recovery after motherboard dies

The Skinny Personal home computer with RAID built with the onboard Intel chipset hardware RAID controller has died after a power fluctuation. The system hardware was kind of old. Will the RAID array ...
CodeWarrior's user avatar
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ASRock J4105-ITX motherboard is not booting with Marvell RAID card installed

I guess it happens as RAID has legacy BIOS and the motherboard is UEFI only? I can't find CSM in the BIOS either. Is there a way to fix it? Not a big deal as I can use Linux's RAID but recover & ...
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Windows freezes when accessing optical drive when SATA mode is set to RAID

I have a Asus X570-E motherboard with a couple drives connected in raid on the SATA bus. I've set the SATA mode from AHCI to RAID, and configured the raid successfully. However, today when I ...
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How to connect additional drives to HBA controller?

I have a HBA 330 IT controller which has 2x4 12 Gbit/s SAS (or 6 Gbit/s SATA) ports, available through two SFF-8643 mini-SAS connectors. Though it has only 8 ports, it can aparently support up to 32 ...
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Can I read from a 2-disk RAID 1 array from a 2-bay external USB disk dock?

I have 2 disks which were the only disks in a Linux RAID 1 array. The RAID information is still readable via mdadm when mounted externally via USB using my 2-bay disk dock. Is there a way I can read ...
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Windows 10 - RAID5 - Intel RAID or Storage Spaces?

Which method should I use to RAID5 my 3 drives? At the moment I started out with Intel's RAID but it seems super slow. Steam can barely download with 10M/s speeds and the array sometimes have ...
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How to migrate mdadm RAID10 with 4 disks to RAID5?

I have a software RAID10 based on Linux’ mdadm under Debian Buster. Originally I found RAID10 had best performance. But I need more space and accept to trade some write performance for +50% space. # ...
Daniel Böhmer's user avatar
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Windows Storage Spaces incorrectly reporting drive space

I recently set up a Storage Space on Windows 10 Pro for workstations. I am using a pcie nvme card that holds 4 drives, I want to stripe these into a RAID 0 array. I used the storage space GUI in the ...
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Error when trying to reduce number of drives in a Linux RAID array

I’ve got a Synology NAS that I’m trying to reduce a RAID6 array from 12 drives down to 11 drives. I’ve already reduced the size of the file system and logical volume, but when I try to reduce the ...
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Dell PERC H710P 8 drives show up in 4 pairs with same id

I’ve scoured the Dell documentation for the product, but I can’t for the life of me figure out what I might be doing wrong. I have 8 4TB HGST SAS drives in an enclosure. The Perc bios will only let ...
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"ICRC, ABRT" errors with IRST (Intel Rapid Storage Technology, imsm): Could it be software?

I have a system with two IRST RAID1: sda+sdb (2TB), sdc+sdd (1TB) (in Linux-speech) Each pair of disks was bought in one order, i.e. they are the same disk drives of the same age. The 2TB RAID ...
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Can I force-mount a raid filesystem beyond repair?

I had a 3-disk RAID5 setup. While migrating carelessly, a disk popped out of the array and then another followed closely. I therefore cannot legitimately rebuild the array because there is no aligned ...
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Remounting imperfect RAID 6 after clean install

I am running a small laboratory server (intermediate logins and data storage). It has 5 physical drives: one (sda) for /, and 4-drive RAID 6 (sd[b-e]) for /home. Due to a hardware fault, I had to ...
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Unable to mount BTRFS partition on RAID 5

I recently had a power outage, upon rebooting I was unable to mount my btrfs partition which is set up as raid 5. root@ubuntu:~# mdadm -D /dev/md2 /dev/md2: Version : 1.2 Creation ...
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RAID controller failure...! Can I just pop disks into another controller, same make and model(ish)

My Promise Smartstor DS4600 went pop! It has 4 drives set up as RAID 5. I have purchased a second hand Promise Smartstor NS4600, which I beleive uses the same hardware (Just has added network ...
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Store data across two or more removable disks in Windows, perhaps also in Linux, for security

I want to store some data in something like a stripped or spanned volume, or a RAID, but on flash drives. I'm basically trying to replicate this video (https://www.youtube.com/watch?v=dougISKs2vQ) in ...
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mdadm RAID 6 drive failed over, then some of my data disappeared

Background For 7 years now I've had a personal file/media server running Fedora (initially 21, currently 30). The main storage array comprises 3TB drives in an mdadm RAID6 (originally, RAID5). Over ...
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Raid 5 XFS missing superblock

Yesterday I found (the hard way) that my APC battery had failed; After a power loss at home I had to power up my computer and NAS (raid 5 XFS on Debian). The computer was fine however the I was unable ...
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mdadm can't reasamble raid 05

English is not my first language, so sorry in advance for any grammar errors. A partner configured a raid 5 of raids 0 with mdadm (I did not wanted to put the data on any thing that was not one of ...
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Restore RAID 0 with one member disk having been written to

Due to a bad overclock I had to reset my CMOS. This caused my RAID 0 to show up as "failed". One disk was detected as member the other detected as "Non raid disk". I have no reason to believe that the ...
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Change raid partition to ext4

I have an external HHD that has somehow been formatted as 'linux-raid' when I look at it in gParted. I have no idea how I have accidentally done this but I guess I misused some new feature of an open ...
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Why won't my RAID controller boot on 1x PCIe?

I have an Adaptec 1x SAS (4x PCIe) 3405 that works on 1x PCI. I have an Adaptec 2x SAS (8x PCIe) 5805 that "boots" but hangs the OS on boot or the device stops working on boot and doesn't show in the ...
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Booting Windows from VROC RAID

I installed Windows (tried server 2019 as well as 2016) on a Intel VROC RAID0 Raid (VROC seems to be the only RAID option my SuperMicro X11Dai-N offers). During installation, I had to load the VROC ...
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Is it worth switching from RAID to AHCI on on windows 10 pc

Currently I have RAID configured on my PC in BIOS (not at software level). I wanted to use dual boot with ubuntu but this is not possible with RAID cnfiguration. Will my pc suffer in performance for ...
Ankit07's user avatar
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Random uninterruptible sleep processes / IO spikes

Starting last week, I've been having a problem where various processes will go into the uninterruptible sleep state for about 5-10 minutes at a time and then unblock themselves like nothing ever ...
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Is my drive failing?

I have a RAID10 array on my Ubuntu 14.04 LTS server (4 drives). mdadm reports one of my drives as having failed or dropped out of the array. I am trying to determine if this drive is failing or ...
BrokenCode's user avatar
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BTRFS RAID5 disk failed while balancing

If you clicked on the link to this topic: Thank you! I have the following setup: 6x 500GB HDD-Drives1x 32GB NVME-SSD (Intel Optane) I used bcache to setup up the SSD as caching device and all ...
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1 answer
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Share RAID between Linux and Windows 10

I have a PC with two SSD, one for Windows 10 and one for Linux. I also have two more 1TB disks that I want to use as a software RAID 1 volume shared between Windows and Linux OS. Which way could be ...
Progitto's user avatar
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Copy Fedora 28 BTRFS from Single Drive to Motherboard RAID(1) and make bootable

I have a bootable Fedora 28 system running on a single drive (sdc), using BTRFS. I used to have F24 running on my Raid-1 mirror, now I would like to transfer the 28 to the Raid-1 mirror. The RAID-1 ...
user10216038's user avatar
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1 answer
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LSI 9211-8i error: `mpt2sas_cm0: mpt3sas_scsih_issue_tm: timeout`, filesystem disappears. Hardware issue?

Every few days on my DL380 G6, I get the following error: mpt2sas_cm0: mpt3sas_scsih_issue_tm: timeout And the filesystem completely dies, spewing ext4_find_entry errors or similar whenever a ...
Pneumaticat's user avatar
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RAID-0 SSD failure: I/O error, err_mask=0x4

Set up I have an ASUS UX301LA-DE022H. It contains two SSD SanDisk SD6SP1M-256G-1102, 256G each, configured as an Intel Firmware RAID 0 (a.k.a. fake RAID). What happened I was using Windows normally....
JBE's user avatar
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Can I erase or reformat a Linux RAID drive using Terminal on Mac

Or by any other means basically. This is what diskutil list gives me.
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Disks have become spare with fake Raid. Is there any change to remount the volume?

I used the Intel Rapid Storage Technology (fake RAID) with 8 disks (6 disks for RAID 5 and 2 hot spares). ~# mdadm --detail-platform Platform : Intel(R) Matrix Storage Manager Version :...
Nicolas Roduit's user avatar
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1 answer
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Personal RAID5 long run maintenance

I'm considering to build a RAID5 storage from three 8TB hard drives inside my PC being run under Windows 10 Home (if it matters). In my motherboard's manual I can see instructions how to setup RAID5 ...
Pavel Shkleinik's user avatar
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After Updating Intel Rapid Storage Technology Software, Windows 10 won't boot

After updating my Intel Rapid Storage Technology (IRST) software, My windows 10 desktop computer won't boot. I'm using IRST to manage my RAID 1. I can't access Safe Mode to undo the IRST software ...
Rich's user avatar
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1 answer
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Error 0xA005004B when trying to convert to RAID 1 with Intel Rapid Storage Technology

I have a laptop with two 500GB hard drives that I want to convert to RAID 1. Currently Windows is installed to one of the drives (port 0), and the other drive (port 5) is unused. I'm trying to convert ...
AJMansfield's user avatar
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How can we identify the RAID configuration externally?

The admin responsible for an old server has left the company and no one knows how to access it. This server is business critical so we can't unplug it to regain access. How can we tell what RAID ...
Mars's user avatar
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Why can't a RAID controller mimic a drive controllers actions on a URE?

There is a fact: a URE renders an entire member of a RAID array as bad, but a URE DOES NOT render an entire drive as bad outside of an array. What is the technical difference that causes this? They ...
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Re-use raid 5 in debian that was created in an external raid cabinet

I had 5 disks in a Deltaco raid cabinet configured to run the disk in RAID5. Now the cabinet doesn't work anymore, and I'm trying to get the data from the disks. I hoped that I could just pop the ...
brange's user avatar
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reassemble mdadm raid6 with 3 of 5 disks showing possibly out of date?

Not sure what happened but my raid 6 serving as xfs storage stopped to work First I checked SMART of all devices but non of them showed an error. cat /proc/mdstat Personalities : [raid6] [raid5] [...
Steve 's user avatar
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Windows 10 Mirrored Drives show up as Foreign after taking them back from offline

I have a set of drives that I used in mirrored setting. I took them offline, and after my move I put them back online to rebuild the mirror index. Unfortunately the power went out during the rebuild ...
Adam Lee's user avatar
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530 views

One RAID1 missing after reboot

I'm using Open Media Vault 3 that is based on Debian 8. I already have a RAID1 of 2x4TB WD Caviar Red, and now I'm tring to build a RAID1 with two Seagate Ironwolf 6TB. Whe I build it anything is ...
Ansem's user avatar
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ESXI Hardware RAID Solution

I'm re-purposing a machine to run ESXI and made a rookie error in that I did not properly understand the hardware requirements. The machine will run a range of linux distros which will then runner ...
Remotec's user avatar
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RAID-1 corruption: Possible to apply catalog data from one disk to another?

More details can be provided, but here's the basis for the question. I just had a RAID-1 hardware failure which has resulted in an unusual situation: Disk A, containing the file catalog data, but no ...
Beejor's user avatar
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1 answer
543 views

Can't find RAID1 after reboot

I have Debian8 with Open Media Vault on it. I'm tring to build a RAID1 with two Seagate Ironwolf 6TB. I can build the RAID1, create an ext4 partition on it and use it without a problem. The problem ...
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