Questions tagged [software-raid]
Questions which refer to software RAID implementations.
502
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Unable to reassemble md raid on drives pulled from ReadyNas Duo v1
I'm toying with a ReadyNAS device that I've recently acquired. It is a SPARC-based box, and it runs linux.
As device is pretty slow, I've pulled one drive out of array, hoping to populate it with ...
2
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0
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111
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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 ...
0
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0
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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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0
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2 Disks Suddenly Showing as Spares on Raid 5 Array
I have a raid5 array in a Seagate Blackarmor 440 nas that suddenly started showing disks 1 and 4 as "failed". I moved all of the drives over to a Ubuntu box and tried to assemble the array ...
1
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2
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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) ...
0
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0
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44
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Restoring a veracrypt volume
I had a great idea at one point, creating an asus motherboard raid 0, where i ultimately installed windows too (yes i know). One of the M.2 ssds, started failing and i had to reinstall everything.
...
0
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0
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94
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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
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1
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347
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How to wait for mdadm RAID1 resync process to fully complete?
I currently have a logic to wait for the resync process to finish by looking at /sys/block/mdXXX/md/raid_state to be clean and assume that the resync has finished. However, I don't think this is ...
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Getting rid of "Current pending sector" in Microsoft dynamic drive member without resynching to another disk and erasing it
I've got an issue with drive - current "current pending sectors" count is equal 15. I think that it might be only a result of a broken SATA cable, which I've got rid of today.
Long story ...
1
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0
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Why are random writes to an MD RAID 10 extremely slow (12.5 MB/sec)?
I've just run a fio test against a 6-disk level 10 MD RAID of SATA 2 drives (WDC_WD5003AZEX; 500 GB each) on an OpenSuSE 15.4 machine powered by an Intel(R) Xeon(R) CPU E3-1231 v3 @ 3.40GHz and ...
3
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Is a Simple Storage Pool the same as software RAID 0 in Windows 10?
I have a single SSD in my PC as a boot drive with two 1TB HDDs that I'd like to setup in RAID 0. I'm not storing anything important in RAID 0, just my Steam library. I figured setting the drives up ...
1
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1
answer
3k
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mdadm device missing
After a reboot my /dev/md0 device was missing. This is a RAID-1 array from two partitions of two harddrives. On each of the harddrives is another partition, which together belong to dev/md1. However, ...
3
votes
0
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97
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Recover a RAID5 logical volume with two failed devices
before bashing me I assure you I know a RAID5 devices can survive only one drive failure. So... why am I asking this?
I had two disks disconnected simultaneously from my machine, so raid failed. Also ...
5
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1
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BTRFS, RAID5 or RAID6 for data storage?
I need to setup a storage for my server. The hardware is a 5 bay enclosure and 5 WD RED 8TB.
I have read the statistical probability of a catastrophic failure in RAID5 (= normal RAID) rebuild after ...
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2
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mdadm raid cretion: apparently superblock not written to disk
I am in exactly the same predicament as MDADM raid “lost” after reboot:
I followed this giude to setup a raid-1 array with two disks (I was working in a recovery shell, so no "sudo"):
mdadm --create ...