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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How can I make mdadm auto-assemble RAID after each boot?
I successfully created a RAID (mirroring) by utilizing mdadm. However, I must run the following commands after each boot:
mdadm --stop --scan // to stop /dev/md127 - I don't know where the number 127 ...
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Is there a RAID 0 Equivalent for RAM?
With hard drives, you can put them in a RAID 0 configuration to split data between drives to increase read and write speed. Is there an equivalent of this for RAM? If I have 16 GB of memory, for ...
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How to get an inactive RAID device working again?
After booting, my RAID1 device (/dev/md_d0 *) sometimes goes in some funny state and I cannot mount it.
* Originally I created /dev/md0 but it has somehow changed itself into /dev/md_d0.
# mount /...
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Switch RAID to AHCI without reinstalling Windows 10
My Dell XPS 9560 uses RAID as a SATA controller mode.
After I change it to AHCI, the Windows 10 will not boot.
What should I do if I don't want to reinstall Windows 10?
RAID = Redundant Array of ...
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How does parity work on a RAID-5 array?
I'm looking to build a nice little RAID array for dedicated backups. I'd like to have about 2-4TB of space available, as I have this nasty little habit of digitizing everything. Thus, I need a lot of ...
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ZFS Beginner Setup with Different Size Drives
Sorry for the noobie questions, I've been Googling all sorts of walkthroughs to create my ZFS raid, but I can't seem to find the correct links for the answers I'm looking for.
This is my first ...
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Software RAID Windows 10
I have always had a hardware RAID 5, but recently lost tons of data due to a drive loss, even after recovery steps.
I am trying to set up a RAID 1 on 3 drives, and I do not see the option "Add ...
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Does RAID1 increase performance with Linux mdadm?
I have a cheap 2-bay NAS with a 2TB HDD. To be robust against disk failure, I'm thinking of buying a second 2TB HDD and putting it in RAID1 with Linux mdadm. The file system is ext4.
Will this ...
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Simple mdadm RAID 1 not activating spare
I had created two 2TB HDD partitions (/dev/sdb1 and /dev/sdc1) in a RAID 1 array called /dev/md0 using mdadm on Ubuntu 12.04 LTS Precise Pangolin.
The command sudo mdadm --detail /dev/md0 used to ...
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Can I set up a RAID 5 with a bunch of drives of different sizes?
I currently have 3 1TB drives, a couple 500GB ones and some 750GB ones. Can I put them all in a RAID 5 configuration or do they need to be of same size?
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What's the point of having a RAID 1 configuration over incremental backups to a secondary drive?
I have a synology NAS and I don't understand the point of RAID 1 system.
Why bother having a mirror? If I delete a file by accident it's deleted on both drives.
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Can a mirrored (RAID-1) disk be plugged into another system to be read?
If I have disks in a RAID-1 array, can I take one of them out and plug it into a different system to be read?
This means, on the target system, treating the disk from the RAID array just like an ...
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Intel Matrix Storage Manager vs Linux Software RAID
The chipset I'm using supports the Intel RSTe technology. It means that I have two options for RAID setup:
Ordinary linux software RAID, using mdadm command.
RSTe (either by the BIOS or, again, using ...
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How-to change the name of an MD device (mdadm)
Here is the output from mdadm -Esv:
ARRAY /dev/md127 level=raid0 num-devices=2 UUID=d89d9d45:9a420812:c44c77eb:7ee19756
devices=/dev/sdb8,/dev/sda8
This is a v0.90 array. The question is as ...
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Best order of RAID, LVM and LUKS
I am going to install a file server with Debian GNU/Linux 8.
I want to have software RAID-1 using mdadm as well as encrypted disks using LUKS. I also like the flexibility of having LVM.
There are ...
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