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.
2,312
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Average/General RAID 0 "Chunk Size"?
EDIT: this got closed as being "opinion based". i disagree! the facts are, i have to choose one of five Chunk Size options when creating a RAID on Mac. i don't know which size to choose for ...
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Recovering RAID 6: drives are ok, but partitions are "lost"
I faced strange issue with my RAID 6 array (8 HDDs, mdadm). Accidentially 3 drives were disappeared from it, with corresponding result - array has been ruined, but - all 8 drives are perfectly fine, ...
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Recover data from mirrored drive on HP N40L microserver
My HP N40L Microserver has died and I'd like to get the data off the drives. I had 2 sets of mirrored drives on the server. Pretty sure the drives are ok, was another issue with the server.
I've ...
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StorCli not seeing IcyDock drives trough RAID controller
I am trying to use my drives through a MegaRAID 9540-8i, I am using an official cable from Broadcom for said controller (Broadcom 05-60002-00 Serial Attached SCSI (SAS)-cable)
and using this ( https:/...
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Partition is not accessible in WinXP after being used in RAID 1 under Ubuntu
I have created a RAID 1 array under Ubuntu using mdadm. I used the manual at this link: https://www.digitalocean.com/community/tutorials/how-to-create-raid-arrays-with-mdadm-on-ubuntu-16-04
I created ...
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Disk operations hang after deleting folder on large NTFS volume
We have a customer system where a disk is completely inaccessible for a long time after deleting files. Typically, the disk is inaccessible for more than 45 minutes.
The system is a production system ...
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Can't safe boot to Windows 10 if I change SATA Emulation BIOS setting from RAID to AHCI
I'm trying to change SATA emulation from RAID to AHCI on a HP Omen X 17-ap001nb laptop with installed Windows 10, without reinstalling.
This popular question: Switch RAID to AHCI without reinstalling ...
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What's most important in a power supply for a video workstation build? Input voltage, amperage, efficiency, or # of SATA connectors?
This is a practice question for the CompTIA A+ exam. I understand from reading other posts that some have strong opinions on this cert, but I'd just like to know why one answer is correct. I've ...
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Raid 0 not recognised by File Manager
I had a 2x2TB Raid 0 setup and healthy. I fitted a new 6TB HDD, in doing I unplugged my 2x2TB raid drives to reorganise the drives in the case.
Now Windows File Manager says I need to format the Raid ...
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md127 : inactive sdb
I tried to fresh install a ubuntu on an server but it failed stating inactive sdb. Shared below is the stat. I am not familiar with RAID and wondering if someone could guide me on how to fix it ?
...
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Windows 11 22h2, storecli64.exe is not recognized as an internal or external command
Annoyingly, the storcli64.exe starts up, but doesn't recognise any of the commands.
I need to configure my RAID controller and update the firmware, but the download command isn't working either.
The ...
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1
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How to identify disks in RAID? Which controller / channel?
I have m/b Asus
RAID 10 on Intel RAIDXpert2
Log says "medium error on controller 1 channel 1". Although 1 disk is offline I dont think it has anything to do with that message as it also says ...
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HDD orientation - does it matter? [duplicate]
I have raid 10 with 4 x Seagate HDDs. The disks are almost 10 yo. And suddenly one started to fail.
That one is mounted vertically (the PC case I use now has only 3 horizontal mounts for HDDs and 1 ...
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How do you find which drive is failing in RAID10 RAIDXpert2 on Windows 11
I had few occurrences when my PC would take very long time to start. About 5 times over last 6 months. It would be stuck before POST for 20 min for example. No reboot, reset and pulling power cord out ...
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How to configure multiple old desktops as Kubernetes cluster?
I have been accruing some old gaming PCs that my friends no longer need, and I would like to turn them into a place to run Kubernetes clusters. I am hoping to come up with a somewhat high availability ...
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Proxmox : 8 SAS (Data) and 2 SSD (OS) Setup (SW/HW RAID and VMs)
I'm noob on homelab and server setup, that's why I'm calling to your support
Bellow is the main list of my server's components :
CPU : 1 x Intel Xeon Silver 4208
RAM : 5 x 16Gb DDR4 ECC
RAID Card : ...
KisSme
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Ubuntu Server mdam device disappeared after reboot
I have a server (Ubuntu 22.04 LTS) running a software RAID 1 with mdadm, consisting of 2 WD Red disks. After booting the server, a Windows client couldn’t find the Samba share. I logged into the ...
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Raid 1 LV partially up and unable to repair, the down rimage is missing
I run a lvm raid1 on my old computer.
pv: /dev/sda1 sdb1 sdc1
vg: myvg
lv: myvg/debian
The root partiion is myvg/debian, it is a raid1 on sdb1 and sdc1.
(lvcreate --type raid1 -L 6G --name debian ...
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How to recreate hardware mirror RAID with bigger drives?
I had a RAID 1 mirrored array composed of 2 x 500GB HDDs connected to my Gigabyte Z590 motherboard.
I was running out of space, so I cloned one of the drives with Clonezilla to a 1TB drive.
On that ...
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Wildly varying throughput
I did some test with various raid setups. For all of them, I created everything (e.g. volume group, logical volumes, etc) with default values, no modifications.
I am having trouble understanding
LVM ...
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2
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Does multi storage pools make sense to avoid more damage from a bad disk?
I am a beginner of NAS(and its hardwares), and I get some basic knowledge about RAID from Synology's guidebook. There are many tutorials taught me how to use my hard drive devices to create the ...
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Upgrading Win 8 to Win 10 not possible
The screenshot explains everything:
A couple of days ago received a machine with Ryzen 1700 cpu and ASUS X370-Pro motherboard with enabled RAID1 on first 2 SATA ports (in fact on all ports, ask ASUS ...
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How to safely delete disk volumes on a RAID 5 logical disk in order to expand the C: volume?
Our small office has a RAID 5 server with 4 2TB disks using HPE S100i software RAID, running windows server 2016. The office files are just in the Shared folder of the C: volume, but for some reason ...
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mdadm lost RAID5 after new motherboard and processor
I moved my mdadm RAID5 to a different motherboard/processor, same boot drive.
The array is no longer found during a mdadm --assemble --scan
The motherboard was previously running INTEL RAID, so when ...
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0
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1
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43
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Moving Drive Group without losing Data
I am testing a scenario of moving drives without losing data as follow .
I have SERVER A with 2 Drive Groups :
Drive Group : 0 , RAID 1
2 drives System drives
Drive Group : 1 , RAID 6
8 drives Data ...
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1
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280
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Remove RAID metadata from HDD so it can be repurposed as a single disk
Previous RAID config was RAID6 in a QNAP NAS, I now want to repurpose the disks as 8 individual disk in different machines.
Each disk appears to have some RAID metadata (superblock) that is stopping ...
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Restoring/Accessing Synology Raid 1
I was recently asked to try to restore the data from a raid on a synology NAS. The raid consists of 2 disks of 2TB in size. It is a raid 1.
From what I was told, One of the drives has failed and the ...
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Re-adding disk to md raid fails
I have a problem with a Linux software raid and don't know what are the next steps to overcome this.
It's a Raid 1 of several partitions. After an unclean shutdown the raid started unclean degraded ...
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1
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can we identify which HDD has the operating system installed in the RAID configuration
I have a server using windows 2008 R2 and using a RAID configuration as storage. can I find out which HDD has the operating system installed in the RAID configuration?
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Raid6 mdadm reshape operation interrupted - now cannot mount or examine
Edit: Once the reshape finished the drive became fully accessible again.
I had a power failure while a raid6 array was being reshaped, and now certain operations cannot be run against it, including ...
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How do I migrate system folder and app settings to new QNAP volume?
I currently have a RAID5 with ~12TB of capacity consisting of:
2 6TB disks
1 14TB disk (only uses 6TBs)
All WD Reds
QNAP T-651 (6 bays) - Firmware 5.0.1.2248 - 8GB Memory
The inconsistency in drive ...
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129
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Slow hardware RAID0 write performance with 26 drives
I need a storage server with a total disk space of at least 400TB and write speed (preferably) well above 2GB/s for a scientific experiment which will transfer files of the size about 10GB via a ...
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1
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Intel RSTe RAID drives appear in BIOS but not in Windows
I have a HP Z620 workstation running Windows 10.
I moved 4 HDDs into it from an older HP Z420 - these form a RAID volume that was working fine with Intel's RSTe on the old machine.
On the new machine ...
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2
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395
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How to get new hard drives into a QNAP NAS and transfer the old data from static volume
I want to make sure this plan works.
Existing setup: 2-bay QNAS NAS drive containing two 1TB drives. No RAID. One drive is a "Static Volume" and one is a "Legacy Volume" (from an ...
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1
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Clean up left-over around a RAID5 coming from a QNAP NAS
I just moved a 12TB RAID5 (4 disks of 4TB) from my QNAP NAS into my Linux Server (/dev/md0), and I noticed that there are three "left-over" partitions on each disk (/dev/sd*1, /dev/sd*2, /...
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Repairing Lost Partitions In RAID Array
I have a pair of SSDs in a RAID 1 array, managed by a Dell PERC H710 Mini. The disk backplane was replaced and the virtual disk disappeared, it has since reappeared but contains nothing (there was an ...
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2
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How much space should I use in a RAID-1 (mirrored) disk partition to avoid a "partition too big" issue
We're having issue with a RAID-1 (mirrored) setup when replacing disks. Our current setup has two 1TB disks nearing end-of-life and we wanted to replaced them with two other 1TB disks.
The issue is ...
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640
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Upgrading WD Mycloud EX2 Ultra NAS Drives
I have a Mycloud Ex2 Ultra with 2x2TB NAS drives configured in RAID 1, with a total of 1TB of storage used. Recently tried to upgrade the drives to 6TB because I intend to use the NAS for much more ...
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HDD visible in BIOS and WD Dashboard, but not in Win10 Disk Manager
I have two WD Blue and two WD Red drives. All were working perfectly fine on my Win10 PC up until I have reinstalled the system. Now I only see two WD Red drives.
When I connect these (Blue) drives ...
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System failure shortly after md raid growth and no md superblocks on added disks
tl;dr; I tried to grow my raid array by adding 2 10 tb disks to an exsistant 4x4TB raid 5 array, had a failure with the system disk (not part of the raid) shortly after the growth finished and after ...
- 685
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RAID5 “inactive” recovery - what is netx step?
I am trying hard to reactivate my RAID5.
I got as far as this
q6@q6-desktop:~$ sudo mdadm -D /dev/md0
[sudo] password for q6:
/dev/md0:
Version : 1.2
Raid Level : raid5
Total ...
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3
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1
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161
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Mount Btrfs raid 5 from failed ReadyNas 104 on Linux - aka how I restore data from my ReadyNas
After about 7 years my ReadyNas finally failed, I would expect from Neatgear detailed recovery instruction, but I read dozens of threads - my problem is not uncommon, but solution was not found.
After ...
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1
answer
93
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Why MDADM removes disk with no errors from array and marks it as failed
I have a Raid6 that keeps automatically marking a disk (/dev/sdi) as Failed and removing it from the array even though the long test does not show any errors:
Test results
sudo smartctl -l selftest /...
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Trying to rehabilitate an old PC, encountering RAID error
I have a computer that I aim to turn into a server, but I am running into an error where I can't even reach the BIOS setup screen.
Summary.
Trying to boot PC, encounter error:
Detecting arrays ...
No ...
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0
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51
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mdadm.conf not applied to RAID 1 volume Ubuntu
I run a server under Ubuntu 22.04 LTS, on which I have a RAID 1 volume which I re-installed from a previous server installation (on Ubuntu 20.04).
Here is the interesting part of my mdadm.conf
ARRAY ...
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71
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Ubuntu server RAID 1 with efi
After installation of Ubuntu server 20.04 with RAID 1, /boot/efi is created only on one disk, if this disk fails system is unbootable. The solution I found is to remove disk from RAID, clone partition ...
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1
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From no raid to raid 1 without dataloss
So im currently using a single 8Tb HDD plugged into my Laptop.
I was thinking about buying an Icybox and another 8Tb HDD and then using the hardware raid 1 of the icybox.
Could that be achieved ...
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0
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25
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One slot keeps failing in a RAID-6 array, before and after RAID card swap: does the backplane have to be replaced?
We have a 12 drive Supermicro 12U server SYS-6029P- WTRT with X11DDW-NT motherboard that was upgraded to a 7332895-LSI-MR-9361-16i RAID card so it could go from 8 to 12 SAS disks.
The drive in slot 3 ...
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0
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79
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Where can I see Intel® Virtual RAID on CPU logs on Windows Server 2019 and check if there is any error on any Raid 1 disks?
I have the below system and i noticed that it is repairing the raid right now.
I want to be sure that there is no bad sectors on any of the raid disk but I don't know how can I do that
Here all the ...
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1
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274
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Install NAS OS in data disk array instead of separate disk
I would like some help with my personal NAS setup.
Instead of installing the NAS OS in a separate disk, as most NAS OS documentation suggest, I am looking to install it in the data disk array instead, ...
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