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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mdadm: Win7-install created a boot partition on one of my RAID6 drives. How to rebuild?
My problem happened when I attempted to install Windows 7 on it's own SSD. The Linux OS I used which has knowledge of the software RAID system is on a SSD that I disconnected prior to the install. ...
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Drive missing from Optimize Drives since upgrade to Windows 10 1803
Since upgrading Windows 10 (Pro) to version 1803, one of my drives is missing from the Optimize Drives list. The drive in question is, my D:-drive, a software-defined RAID-0 (striped) over two disks.
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Parity errors after verify with Intel RST
I have Intel RST RAID 1 running on a Windows 7 machine. I have it set to do a verify and repair every week. I frequently notice parity errors, some weeks over 100 for a 1 TB RAID 1 array. I've ...
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btrfs does not show drive as missing
I am trying out btrfs and I noticed some funny behaviour:
I have two drives in a raid 1 configuration.
sudo btrfs fi show
Label: none uuid: 52b9c6f6-ce5c-4727-861e-e2fd012e475f
Total devices 2 ...
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Average/General RAID 0 "Chunk Size"?
EDIT: this got closed as being "opinion based". i disagree! the facts are, i have to choose one of five Chunk Size options when creating a RAID on Mac. i don't know which size to choose for ...
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Backing up data onto many small disks
Goal
I want to create backups of a large file pool using disks that are too small to store everything.
Description of situation
I have a NAS / home server (running Ubuntu 18.04) with a RAID. The ...
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How to prevent an mdadm array check from consuming excessive system resources?
Once a month I've been doing
echo check > /sys/block/md2/md/sync_action
in order to force a software raid consistency check. The problem is this is a 7.2T RAID 5. The consistency check takes ...
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Size on disk way bigger than expected
I have read Why is there such a big difference between "Size" and "Size on disk"? but why is mine so different?
My RAID5 is set at 128kb stripe, the volume is formatted at 64kb NTFS. I would expect ...
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Rebuilding FakeRAID RAID 5 with new disk, no partitions show up, invalid PMBR
I have a RAID 5 array with 4 2TB disks on a HP Z800. One disk failed and was swapped out for a new one.
I went into BIOS Intel Storage Matrix Utility and set the Array to rebuild with the new disk. ...
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Linux access to Windows 7 dynamic volumes (striped or mirrored)
I'm considering setting up a dual-boot system for the first time for many years. My plan for the system is to set it up as follows:
SSD for both system partitions
2 identical hard disks, split into ...
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How does performance scale in a single column 2-way mirrored storage space as more disks are added?
In Windows 8.1 Storage Spaces, there seems to be pretty solid evidence that 2-way mirrored storage spaces have performance that improves significantly as more disks are added to the pool as long as ...
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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+...
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MD RAID 6 with XFS Periodic Kernel Panic -- Possible Kernel Bug?
This now appears to be a bug with the combination of MD and XFS after finding similar kernel panic reports elsewhere. A bug report with Ubuntu has been filed here ( https://bugs.launchpad.net/ubuntu/+...
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mdadm UUID lost after reboot
Here is the problem. I part all disks into 4 partitions.
Use all disk partition one to create raid1(md0). However, after reboot some of the raid members lost, the raid is degraded. Use blkid to check ...
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Synology DiskStation: How to stop/interrupt a running reshape (RAID5 -> RAID6)
The short of it: I have a running reshape from RAID5 with 5 disks to RAID6 with 6 disks which needs to be stopped, so I can power off the system. I do not care if the reshape needs to start fresh once ...
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