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.

Filter by
Sorted by
Tagged with
1 vote
0 answers
19 views

Rebuilding Windows Server 2019 Boot

I have a Windows 2019 Server that has been in service for about 8 months. It is an MSI 670P motherboard and implements a RAID10. It won't boot. Apparently there was a power failure, and the system ...
bkeahl's user avatar
  • 19
0 votes
1 answer
39 views

UEFI Intel RST RAID issue, can it be solved with MDADM?

I had two disks running on RAID0 on a Gigabyte GA-X38-DQ6. They contained a Windows installation, although not used at all as I was running linux from another SSD disk. They were running on the Intel ...
oppsig's user avatar
  • 101
0 votes
0 answers
56 views

Why is my RAID 1 NAS (WD My Cloud EX2 Ultra) reporting RAID health "degraded" after replacing one disk and RAID rebuild?

I have a WD My Cloud EX2 Ultra NAS, almost 6 years old, and got a red light on it recently, indicating a disk problem. The NAS web dashboard reported one of the disks is bad, so I bought a replacement ...
osullic's user avatar
  • 1,049
0 votes
0 answers
15 views

Faulty disk replaced but not visible in RAID 1

I have an old NAS called Netgear Stora. It has two SSD drives in RAID1. Unfortunately one of the drives started to light red on the cover and it appeared faulty (also it started to sound very noisy ...
bpiec's user avatar
  • 143
0 votes
0 answers
27 views

Preserving all user data when replacing a failing RAID controller by importing "foreign configuration"

I intend to replace a failing AOC-SAS2LP-H8iR RAID controller with a LSI MegaRaid SAS 9260-8i controller (offered by our IT facility, who suggests these cards are compatible, but also warns that there ...
Rolf's user avatar
  • 41
0 votes
0 answers
11 views

What makes e2fsck -cc so slow?

This isn't a complaint or a request for tech support or help! I'm just curious about what's going on behind the scenes :) I'm doing e2fsck -cc to flag bad blocks on an 8TB LVM ext4 filesystem. ...
Dani's user avatar
  • 11
-2 votes
1 answer
97 views

Building a RAID 6 NVMe SSD only server using Supermicro case, backplane, and mobo with a Broadcom MegaRAID 9670-24i

To summarize: It will be a bummer to ship all these parts then fly out to do the build to find out a $2,000 RAID card doesn't play nice with a backplane. or that i bought the wrong cable since the ...
Cc Dd's user avatar
  • 115
0 votes
1 answer
62 views

How do I copy a non-RAID image to a RAID 1?

I backed-up the image of a computer's single drive that was not part of a RAID. Then I installed a second new, identical, empty drive. Configuring the RAID via the BIOS erased the old drive, but I ...
kackle123's user avatar
  • 129
0 votes
1 answer
162 views

How exact do I need to be about replacing disks like-for-like in a RAID 1 NAS? Can I replace a disk with one of greater capacity?

I want to replace one of the disks in my NAS, which currently contains two 6TB disks, arranged in a RAID 1 array. Do I need to replace with a disk of exactly the same size? If "it depends," ...
osullic's user avatar
  • 1,049
0 votes
1 answer
165 views

“failed command: WRITE FPDMA QUEUED” with HDD plugged to ASM1062 (PCI-E SATA expansion card)

Setup I refurbished an ASRock QC5000M motherboard for a home server, by installing Debian 12 on it with the intent to set up a RAID 1 on 2 hard drives. This motherboard only has 2 SATA ports, so I ...
A.L's user avatar
  • 750
1 vote
1 answer
119 views

Read data from a raid1 disk, superblocks erased

I have a disk that used to be inside my qnap NAS (it was in raid1 with another disk, which I still have). The NAS died and I mounted the disk on my ubuntu machine using mdadm to create the raid array ...
Daniele's user avatar
  • 113
1 vote
0 answers
56 views

How to monitor drive failures via IPMI/Redfish Supermicro & Gigabyte

We have a bunch of Supermicro SuperServers deployed (various generations) and since we had a few drive (SSD) failures in the last month. We only noticed the failures (depending on the RAID level) ...
fodinabor's user avatar
  • 113
0 votes
1 answer
181 views

Doing a disk copy with dd on RAID1 devices on Ubuntu

I want to make exact copies of two drives using dd. The two drives are mounted on Ubuntu as a single RAID1 device. The RAID (consisting of two drives) is bootable. If I make exact copies of the two ...
Sunny's user avatar
  • 355
0 votes
0 answers
33 views

When trying to setup Raid Sata, and only the top sata ports detect drives

I disabled CSM and enabled sata raid in the bios. After rebooting, the top 3 sata ports detect drives in the bios and windows and the bottom 3 located on the motherboard do not. Is there a solution or ...
user5389726598465's user avatar
1 vote
0 answers
98 views

Fault detected on drive 1 in disk drive bay 1 on a Dell R620, but is it really a concern?

It gives me this code on the display from the server (Fault detected on drive 1 in disk drive bay 1) , but in iDRAC: Storage summary: Fault logs: Disks online: I really don’t know what is happening,...
MrLonely's user avatar
0 votes
1 answer
57 views

How to convert ext4 partition on raid 1 to btrfs?

I'm trying to convert two ext4 partitions that are on raid 1 with mdadm to btrfs. When i try to run fsck.ext4 /dev/md0p2 fsck.ext4 /dev/md0p3 They return with e2fsck 1.46.5 (30-Dec-2021) /dev/md0p3 ...
Mogipit243's user avatar
0 votes
1 answer
124 views

RAID with 3 x 500GB on 3 disks? (9 partitions)

Looking to set up a photography PC slash storage. Below is my disk drives 500GB SATA Barracuda 2.0TB SATA Western 2.0TB SATA Western 500GB ePCI NVMN --- use this as the PC It occured to me, if I ...
Manualphotog's user avatar
2 votes
1 answer
195 views

How can I create a single partition from three different disks to install Windows on it?

I have 3 disks: 1TB, 512GB and 512GB. Is there any way to create a single 2TB partition and install Windows 10 on it? Data safety is not important.
The Slava's user avatar
0 votes
0 answers
8 views

Is removing the disks from readynas duo v1 and reconnecting them after performing a factory reset likely to cause data loss?

As mentioned in the topic, ı want to remove disks then perform factory reset to clear mistaken configuration and lastly insert the disks back. Is there any possible data loss chance in this operation? ...
ACrescendo's user avatar
0 votes
0 answers
15 views

HP DL360e gen8 - fans rev at 100% at all times

I want to install proxmox on this machine To do this, I need to disable the b320i raid controller (disks are not detected during installation), but when I did this, the fans start working at 100% all ...
nA PrikoLe's user avatar
0 votes
0 answers
78 views

mdadm grow fails with "mdadm: Cannot add bitmap while array is resyncing or reshaping etc."

We have a RAID-1 setup. We changed the old 1TB disks for 3.7TB disks. The disk changes worked without a problem, the disks are in sync. We did have to change the partition type from MBR to GPT, but ...
leftcursor's user avatar
1 vote
1 answer
64 views

How to resize a linux raid-1 volume?

my some-years-old linux server has four raid-1 volumes: /dev/md1 on /boot type ext4 /dev/md2 on / type ext4 /dev/md3 on /home type ext4 /dev/md4 on /data type ext4 The four volumes are stored in this ...
botnico's user avatar
  • 11
1 vote
0 answers
93 views

Recovering QNAP TS-559Pro RAID 5 after double disk failure

Although the system itself stated that the array functions normally, DiskSMART for Disk 2 was giving yellow warning at Reallocated_Sector_Ct line: Value=100 Worst Value=100 Threshold=010 Raw value=8 ...
Xenox's user avatar
  • 13
0 votes
1 answer
108 views

Expand storage on PERC H710 RAID 0 Dell Poweredge R620

I can't find any good tutorials online. It's my first server and I don't know much. I have a RAID 0 and I want to expand storage without losing my data? Is it the same process for a RAID 5? I've read ...
MrLonely's user avatar
2 votes
1 answer
107 views

`zfs replace` keeps giving write errors with new drives & different SATA cables

I replaced a failing hard drive (increasing error counts in SMART, read/write/checksum errors in zpool status) in a ZFS raidz1 pool with a new one by running zfs offline and zfs replace. Resilvering ...
P. B.'s user avatar
  • 336
0 votes
1 answer
65 views

Confused source with destination with ddrescue

I was about to recover second out of five failing RAID disks with ddrescue, and sudden peculiar twist occurred in my mind, and I typed sudo ddrescue --verbose --idirect --no-scrape -f /dev/sda /dev/...
Xenox's user avatar
  • 13
0 votes
2 answers
123 views

Can RAID 1 fail (me)?

I read about RAID 25 years ago but never used it. Now I am considering mirroring a Dell work laptop's SSD using its BIOS/chipset RAID. Let's assume monthly backups are performed but I am looking to &...
kackle123's user avatar
  • 129
2 votes
2 answers
109 views

Raid 0 to Raid 6

I currently have 4x 4TB NVME drives in an enclosure. I originally started with 2, and consolidated my full photo library onto this. I currently have a duplicate of the first data set on the newer set ...
mondo's user avatar
  • 133
0 votes
1 answer
955 views

Creating a RAID-5 using Storage Spaces in Windows 11

I want to try the new Storage Spaces in Windows 11. Some years ago I bought an external enclosure with 5-bay for hard drives and also provide RAID 5 functionality out-of-the-box. It works pretty good ...
NioZero's user avatar
0 votes
2 answers
711 views

How to tell if a hard drive with Windows was used in AHCI or RAID mode?

I have a computer with a corrupted windows installation that will not boot into the OS. I am trying to fix the operating system, but I am not sure at this point if the drive was using RAID or AHCI. ...
jo99blackops's user avatar
-2 votes
6 answers
354 views

Repairing Windows installation that can't boot

Background: I have an Asus UX51VZ that will no longer boot into Windows. This was my dad's primary computer. I took it to a computer shop so they could fix the fans that came on at full speed all the ...
Flyview's user avatar
  • 47
1 vote
0 answers
41 views

How to make RAID-1 (almost) full bandwidth when processing the sequential write/read?

When I read OSTEP chapter 38 about RAID, it says in p10: The 1/2 penalty assumes a naive read/write pattern for mirroring; a more sophisticated approach that issued large I/O requests to differing ...
zg c's user avatar
  • 31
0 votes
1 answer
48 views

Can I swap between two RAIDs on one NAS?

Weird question, confuses Google, not sure where to ask. I want to buy a Synology DS923+ NAS enclosure and load it up with 4 RAIDed drives. Then I'd like to remove those 4 drives and put them away, ...
J. Matthew Turmer's user avatar
0 votes
1 answer
1k views

How to extend Disk Space with LVM on Linux Server: Limited Hardware, High Capacity Needed

Regarding LVM Partition I am using a Linux server machine (IBM) for a genome assembly task. The OS is Ubuntu, version 22.04.2 LTS (Jammy Jellyfish) The machine has a memory capacity of 248 GB. There ...
Vijith Kumar V's user avatar
0 votes
0 answers
311 views

Linux installation, how to partition for install with a raid setup?

This question is about how to install Linux and create a raid setup as part of the installation. I am trying to install Debian 12, although this question is probably quite generalizable. As part of ...
user3728501's user avatar
  • 2,624
0 votes
2 answers
3k views

Installing Linux (Debian) with software RAID

As far as I am aware, it is not possible to install Debian 11 directly onto a software raid partition, because this is a "chicken-egg" problem. To explain: the software raid requires some ...
user3728501's user avatar
  • 2,624
0 votes
1 answer
223 views

Is it possible to make a RAID of multiple WD elements external drives

I have about 10 2tb WD Elements 2.5 WD green external hard drives (WD20NMVW). I want to know if I could make something useful out of them. The best would be to be able to use them for a data archive ...
stefanJonB's user avatar
0 votes
0 answers
83 views

Best way to use Windows' RAID 1 to have an hot backup

I'm looking for a way to direct Win10 Pro RAID system to direct the reads to the fast drive in the mirror I'm on Windows 10 PRO and have regular (but not too frequent) backups of my system. The system ...
Simone Avogadro's user avatar
0 votes
1 answer
403 views

Can I setup LVM raid1 to mirror one physical disk onto another?

I have two HDDs, I'm planning on only using one (with NixOS) and the other one should be a mirrored backup, I've had many problems trying to set up a RAID 1 with NixOS and the only documentation I can ...
okaz's user avatar
  • 1
0 votes
0 answers
38 views

RAID server went dark

So I have a Gigabyte 277x MB with a Intel i5 that has been running 2 software raid arrays on Ubuntu for 3 years without issue. Last night I turned off server to move it and clean it and then turned it ...
Shane Greenfield's user avatar
0 votes
0 answers
56 views

How do you decode SAS "Sense" or "CDB" data reported by an HBA or RAID controller?

My Broadcom-based RAID adapter (Cisco UCSC-RAID-M5HD) reported the following "Unexpected sense" error: Unexpected sense: PD #012 = Port 0 - 7:1:9No addtional sense information, CDB ...
KJ7LNW's user avatar
  • 371
3 votes
1 answer
175 views

Unable to format drives previously used in RAID array - weird 15bit mode

I am clearing out a load of old hard disks, and reformatting them to ensure they are blank. I previously had an x86 PC with BIOS RAID running Fedora and several sets of 4 drives which IIRC were RAID 0+...
Bruce Skingle's user avatar
1 vote
1 answer
82 views

Single SSD in RAID10 array has Wear_Leveling_Count issue

I run a RAID10 machine with 4x Samsung 480GB SSD's. The drives are of identical age. 3 of the drives have a Wear_Leveling_Count 090, but one is now as low as 003. I don't understand why one of the ...
Mr.Boon's user avatar
  • 519
0 votes
1 answer
127 views

Mdadm raid 5 array is half the size than expected

I crated a Raid 5 array with mdadm consisting of 4 x 4TB drives, i was expecting the array to be 11-12Tb in total space. But after building the array I noticed it is actuall half the size of the ...
DrWhat's user avatar
  • 3
0 votes
0 answers
24 views

External RAID5 volume activity lights constantly flashing only when screen is locked

I have an external SoftRAID RAID5 volume that constantly and vigorously flashes when my computer has gone to the lock screen. As soon as I hit a key to bring up the login screen it stops. It's rather ...
John's user avatar
  • 405
0 votes
1 answer
57 views

Very uneven disk size in btrfs RAID-1

I want to grow my 6x 3TB RAID-1, and want to use the chance to start using bigger disk sizes. I know that I can use uneven disk sizes in btrfs arrays, and as long as the biggest disk isn't larger than ...
Nils Werner's user avatar
2 votes
1 answer
695 views

How to use smartctl with one raid controller

I using a PERC H730 Mini raid controller : # lspci -d::0104 -k 02:00.0 RAID bus controller: Broadcom / LSI MegaRAID SAS-3 3108 [Invader] (rev 02) Subsystem: Dell PERC H730 Mini Kernel ...
SebMa's user avatar
  • 1,753
0 votes
1 answer
250 views

storcli64 not finding my MegaRAID 9750-4i

Fedora-38 Workstation (32 cores, 64 threads, 128GB RAM) w/mods to make it more Server-like always available. LSI SAS MegaRAID 9750-4i PCI controller. Four identical 8TB SAS drives intended for RAID-...
DarkSky's user avatar
  • 11
1 vote
0 answers
251 views

ZFS I/O Error, Kernel Panic during import

I'm running a raidz1-0 (RAID5) setup with 4 data 2TB SSDs. During midnight, somehow 2 of my data disks experience some I/O error (from /var/log/messages). When I investigated in the morning, the zpool ...
Jealous_Donut_7128's user avatar
4 votes
1 answer
426 views

Can Synology Hidrid RAID (SHR) be composed of 2 disks with different file-systems?

I did search a lot and found nothing on this exact matter. I have a Synology DS2018J NAS with 2 disks 4GB each and EXT4 file system on both. I want to change the file system on both to BTRFS, and I ...
Fer B.'s user avatar
  • 143

1
2 3 4 5
48