All Questions
Tagged with raid hard-drive
757
questions
2
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0
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12
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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) ...
- 21
1
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41
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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 ...
- 445
0
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0
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60
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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 ...
- 1
1
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0
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41
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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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- 11
0
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48
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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 ...
- 121
0
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0
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96
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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 ...
0
votes
0
answers
65
views
What happens when a URE is encountered during a RAID rebuild?
My current NAS (Synology 8x10TB) is near capacity and I'm looking to buy another one (8x22TB) ASAP.
After reading an alarming amount of articles when purchasing the first one about how RAID 5 was ...
- 187
0
votes
1
answer
338
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SATA RAID 0 (striping) configuration under Windows 11
I have a 'semi-newish' desktop I put together (GigaByte motherboard) with 2x M.2 500GB SSDs. I thought I had properly configured them in RAID 0 via the UEFI settings. Yet then today I was adding a ...
- 1
0
votes
3
answers
114
views
Reassemble RAID0 array despite error
My ancient Synology CS407 was setup (deliberately) with RAID0 and I didn't have a backup system set up yet. There are four 1TB drives making a 4TB volume. One drive had a failure which led to the on-...
- 101
0
votes
1
answer
217
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Why am I getting "Partition 3 does not start on physical sector boundary" warning with this setup?
On a fresh install of Proxmox 8.1, fdisk -l is warning "Partition 3 does not start on physical sector boundary". This is unexpected to me, because the start of the partition is 2099200, ...
0
votes
0
answers
93
views
How to recover RAID 1 array from a single device during reshape?
I have one disk that is in raid 4 reshaping from a previous raid 1. According to examine mode by mdadm, the disk is marked as a spare in a raid 4 array of 3 disks. I was hoping to recover data on it ...
0
votes
0
answers
53
views
Unable to access data on Intel "fake RAID" after failed Ubuntu update
Recently I did an update of my Ubuntu, it seems to work at first but after restart it shows:
kernell ofset relocation range kernel panic not syncing: VFS
I try to use different older kernel from Grub ...
- 101
0
votes
1
answer
723
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 ...
- 1,089
0
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0
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69
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. ...
- 11
0
votes
1
answer
107
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 ...
- 136