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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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1 answer
719 views

R900 with Discs larger than 4TB

My Hardware Dell PowerEdge R900 with LSI Logic / Symbios Logic MegaRAID SAS 1078 (rev 04) R900 Technical Specifications About Hard Drives it says maximum for 3.5” 2.0TB SATA. This is an older ...
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2 answers
190 views

System no longer bootable: promise_fasttrack_raid_member

After a simple reboot on my home desktop, I received the following message: Non-System disk or disk error replace and strike any key when ready Plugging a Debian live usb, I could check the following ...
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RAID 5 array won't assemble, lsblk shows drive size as 115.5P for all drives in array

I have a raid-5 array comprised of 4 2TB drives that has been operational since 2018. One day I noticed that access was very slow, and the next day it was completely inaccessible. I have an old (2011) ...
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New NAS: Enhancing MDADM against long-term bitrot and random errors

For the last 15 years I was running MDADM(Raid6)+EXT4 under Ubuntu Server on smaller arrays <25Tb. Typically, all my arrays grow over the years, so I was starting with 4-5 drives and ending around ...
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1 answer
8k views

After Windows 10 upgrade, how do you view the status of your RAID array?

So I have a Windows-7 machine with RAID-1 array (Intel RAID-Controller provided by motherboard "Intel ICH10R"). With Windows-7, I used to check the RAID array by starting "Intel Matrix Storage ...
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28 views

Cloning PERC H310 RAID 1 to non RAID SATA disk

I have a Windows 10 PC with the OS drive being 2 SAS drives on a Dell PERC H310 as a mirror. I want to remove the RAID and install a single SATA SSD. I have some programs to which I have no ...
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49 views

What drive pool/RAID option is best for a home media server with uneven drive sizes?

I am building a DIY home server NAS with a DAS and Proxmox and don't need enterprise-grade redundancy. I am happy to use something other than Proxmox, I just like how easy it is to use containers and ...
2 votes
2 answers
5k views

SSD TRIM support on RAID-1 array through Intel RST

I'm making the jump from HDDs to SSDs on my home desktop, and I'd like to retain a basic level of redundancy (RAID-1) like what I have with my HDDs. Right now, I'm using Intel's RAID controller on my ...
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1 answer
7k views

Changed from AHCI to RAID and now Windows won't boot

I've got 2 SSDs, one for Windows and one for Linux Mint. I have another 4 HDDs I turned into a RAID 0 array via my BIOS. Mobo is ASUS TUF X570. I had the 4 HDDs in a Microsoft storage pool but started ...
1 vote
1 answer
3k views

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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Detecting array message

I found an old PC back from 2005. Tried to boot it up but it gave a message "Detecting array". Also tried dissabling SATA controller in BIOS but then a simple white line was blinking on the ...
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resize2fs wont grow an mdadm array (raid6, lvm, ext4)

I've decided to grow my raid6 array: - from: 7x 2TB drives (giving usable space of ~9TB in ext4/raid6) - to: 7x 4TB drives (giving usable space of ~18TB in ext4/raid6) I have replaced all seven ...
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100 views

Mounting External Intel Raid Device on Linux Failing, No Suitable Superblock and Read Past End

I have a hard-disk from a dead machine that I'm trying to mount on my Linux machine. For reference, I'm using Fedora 39 and mdadm v4.2. First, I tried just mounting it, correctly showing it's a RAID ...
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Migrating between BTRFS Profiles and mdadm RAID

I am planning to set up a home NAS. I plan to start it with two identical disks in something similar to RAID-1, but Iʼm thinking about how to make sure I leave my options open for growing it later. ...
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Degraded four-drive RAID 5 with missing superblock on single drive

I'll start with the question: Based on the following information, is there a mdadm command I can make in the readyNAS to reassemble all four drives in the raid 5 in a working state where I can pull ...
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4k views

Is it possible to remove RAID from a system?

I was recently given a Dell T7500, a server from a business, with two Xeon 2.0 processors, running XP (I have upgraded to 7), 4GB (upgraded to 32GB) RAM, and a RAID with four 1TB hard drives. I have ...
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When I use four drives, one operates very slowly

I’m experiencing unusual behavior with my system. When I attempt to write to four disks concurrently. In fact, the last disk (/dev/sdd) consistently operates at a speed ranging from 40MB/s to 5MB/s. ...
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Windows Storage Pool stuck in ReadOnly state

So to make a long story short(er), I suspect I had a bad SATA card. I have a 8 drive storage pool in Windows 11 in Storage Spaces (1 parity) that's been running great for a few months. Suddenly it ...
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Bcachefs: remove dead drive from an online filesystem

I'm playing around with bcachefs to see how it handles various scenarios. Currently, I'm doing a simple experiment where I'm writing random data to a file on an array with 3 HDDs set up with 2 data ...
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2 answers
7k views

RAID 0 - what happens if mainboard changes?

I had an MSI z77a-g41 mainboard with Ocz vertex3 raid 0 configuration. Yesterday, my mainboard stopped booting. It seems something is wrong with the mainboard because there is no video, no BIOS ...
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Raid data no longer showing up after disconnecting and reconnecting drives

I have WD Mybook Duo 16tb raid. I opened it up and took out the drives because I was originally planning on putting in some drives from a different WD mybook duo 16 tb raid that had malfunctioned due ...
2 votes
1 answer
25k views

Synology NAS station - how to mirror 2 HDD (Simple how-to)

I have the following problem with my Synology disk station: I had one small HDD in Synology Diskstation, so I removed it. I bought 2 new HDD with the same capacity. I transferred backup from old ...
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4 answers
4k views

Linux software RAID robustness for RAID1 vs other RAID levels

I have a RAID5 array running and now also a raid1 that I set up yesterday. Since RAID5 calculates parity it should be able to catch silent data corruption on one disk. However for RAID1 the disks are ...
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Raid 5, single disk failure

A friend's Raid 5 array going down. OS: Windows 10 on SSD, not on RAID Raid controller: HighPoint RocketRAID 2720 controller Raid 5 of 8x8TB drives HighPoint controller is managed through their ...
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USB disk on a VBox on RAID was repartitioned

I have an Ubuntu on a VBox on Windows 10 Pro. The Ubuntu had a Raid 1+0 with 2 external USB disks. Suddenly, when I restarted the server, both disks got repartitioned with these: PARTLABEL="...
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Can I set JBOD and RAID10 at the same time on the NAS?

I am looking to buy ASUSTOR's FS6712X NAS, and 12 of 2TB NVME SSD and now have a question about the RAID settings. Is it possible to set JBOD and RAID10 at the same time? So like having 12TB capacity ...
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How to Clone a Single SSD to a RAID 1 Array?

I have a 1TB SSD with Windows 11 installed and lots of software. I want to set up a RAID 1 (mirror) configuration. I installed two empty 1TB SSDs and configured RAID 1 in the BIOS. I'm trying to clone ...
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335 views

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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2 answers
369 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 ...
1 vote
2 answers
4k views

How to identify physical disks in Linux RAID

Is there a way of reliably being able to tell which physical drive in a RAID relates to the software device name given to it by the OS? I have a RAID5 array of consumer-grade USB disks (and one spare) ...

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