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i have one problem. I created RAID1 with two discs, then i simulated failure of one of the discs. It was sdb1. I restared the VM with one disc working in RAID array. Then i added new fresh disc to add ...
linuxenjoyer32123's user avatar
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I have one 8TB and two 4TB disks. I am curious if I am able to create 8TB raid from 8+4+4 disks? I tried this sudo mkfs.btrfs -f -m raid1 -d raid1 /dev/sdc1 /dev/sdd1 /dev/cdb1 but this creates only ...
Eugen Konkov's user avatar
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This is on a Iomega IX200 NAS which had been expanded to 4TB disks from the original 2TB. It all looks good. But when I try to save data to a new file I get the "No space left on device error&...
Pro West's user avatar
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I have replaced my RAID array from RAID 1 with 2 x 4TB disks to 2 x 10TB disks using mdadm. The process can be summarized as follows: add the 2 new disks to the RAID array, wait for sync, remove the 2 ...
Khang Nguyen Phuc's user avatar
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One of my disk (nvme0n1) fails, so it was replaced. Now lsblk shows nvme0n1 259:0 0 476.9G 0 disk ├─nvme0n1p1 259:5 0 511M 0 part ├─nvme0n1p2 259:6 0 475.9G 0 part │ └─md2 9:2 ...
webard's user avatar
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Is it possible to convert an existing raid0 md device with only one disk to a raid1 md device with one disk in order to add a second mirror disk later? It should be possible online.
WilliWuff's user avatar
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I have installed Software RAID 1 in Debian 12.5. I want if 1st HDD fails the automatically my system should be able to boot from 2nd HDD and visa versa. What steps I should take for the same? My ...
linux01's user avatar
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I installed a new disk today and was prepping it, before realizing that I'd done my "prep" work on an existing RAID1 array!! I'd LOVE to be able to recovered if possible. My array was ...
Vince's user avatar
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I am running a system with Debian 12. /root/ is on a RAID1 array with mdadm with 2 mirrored SSD (let's call them disks A and B). All disks are perfectly functioning. I wanted to replace the two A and ...
giovi321's user avatar
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According to "Examining btrfs, Linux’s perpetually half-finished filesystem", BTRFS RAID1 is said to be "guaranteed redundancy—copies of all blocks will be saved on two separate devices&...
Evan Carroll's user avatar
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What's the easiest way to format an external SSD with encryption and RAID1-style data replication? As I recently grew suspicious of my SSD+luks+btrfs setup, I've started wondering how to reduce risk ...
Nemo's user avatar
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I am trying to expand an existing RAID1 array with an ext4 filesystem on a LUKS volume on Debian GNU/Linux 10 (buster). This is my disk layout from lsblk: NAME MAJ:MIN RM SIZE RO TYPE ...
Ellen Trendy's user avatar
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While setting up my new PC I also setup a new RAID 1 with 2 drives with LUKS on top. After copying all the data to it I made sure everything was usable and afterwards shredded the old drive. But now I ...
felix jochems's user avatar
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I know that btrfs support trim/discard, as a mount option or manually (fstrim -A). I want to made a raid1 of ssd, I will get any problem with trim?
elbarna's user avatar
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While a RAID 1 gives the benefit of redundancy I'm trying to understand whether using a RAID can lead to inconsistencies under any circumstances (I/O errors, not disk, ...). In an effort to understand ...
fischerman's user avatar
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I need your help with a problem that I’ve been trying to solve for days now.  I recently purchased a Western Digital (WD) My Book Duo, and after setting it to make it work as two independent disks I ...
Shevek's user avatar
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I used 2 partitions to create a RAID1 array. both of them are 967131168 sectors, 512 bytes per sector. so the raid array size should be 483564544. but it shows: Array Size : 483433472 (461.04 GiB ...
user2919667's user avatar
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My RAID1 array was working fine at /dev/md128 but seems to have completely disappeared after a reboot, with mdadm reporting both disks are missing superblocks. My question is how to fix this? ...
tater's user avatar
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I have a QNAP HS-251+ NAS with two 3TB WD Red NAS Hard Drives in RAID1 configuration. I'm quite acquainted with Linux and CLI tools, but never used mdadm or LVM so, despite knowing (now) that QNAP ...
Xabier Villar's user avatar
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Env: Linux TRANQUILITY 5.3.18-150300.59.49-preempt #1 SMP PREEMPT Mon Feb 7 14:40:20 UTC 2022 (77d9d02) x86_64 x86_64 x86_64 GNU/Linux Also OpenSuse Leap 15.3 with KDE Plasma 5 When I run the OS ...
Greg's user avatar
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I am attempting to recover data on a MDADM RAID1 array with one HDD that suffered a mechanical failure and another that is stuck in a rebuilding state. I have two 2TB HDDs that were installed on a ...
user514025's user avatar
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I have a hardware raid-1 on two WDC-SSDs with 500GB on each SSD. The raid controller is a Marvell-88SE9128 via two GSATA connections (the controller is directly on the motherboard and not an ePCI ...
cone1018's user avatar
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my dedicated server has a RAID1 array with 2x1TB HDD It is filling up i want add new hard disk (It has already been physically added) I have no idea how to do it. I'm afraid of losing data I found ...
abdolwahab alemi's user avatar
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2k views

I have selection of hard drives, with capacities: 1 TB 500 GB 320 GB 250 GB I'd like to make Raid1 out of them, in the sense, that copy of any data will be always on two drives out of four I have. ...
saXh26Ql0zkF's user avatar
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I'm seriously considering ways to safeguard my data since I'm really tired of loosing files because of bad redundancy. I was reading about RAID1 and it seems a very practical method of keeping updated ...
Lerian Acosenossa's user avatar
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