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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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Change raid partition to ext4

I have an external HHD that has somehow been formatted as 'linux-raid' when I look at it in gParted. I have no idea how I have accidentally done this but I guess I misused some new feature of an open ...
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Why won't my RAID controller boot on 1x PCIe?

I have an Adaptec 1x SAS (4x PCIe) 3405 that works on 1x PCI. I have an Adaptec 2x SAS (8x PCIe) 5805 that "boots" but hangs the OS on boot or the device stops working on boot and doesn't show in the ...
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btrfs ontop of mdadm raid - calculating stripes for corrupt sectors for use with raid6check

I've got a setup with btrfs running on top of mdadm raid6 as btrfs's RAID5/6 code isn't stable yet. I figured this way I'd get the benefits of snapshotting and checksumming with a few extra hoops to ...
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Software RAID on Windows 10 with surface encryption

I have Windows 10 Pro on 500GB SSD. Now I got another 2TB SSD. I would like to have software mirroring of 500GB on 2TB (RAID 1 or storage spaces) and use the remaining 1.5 TB as non RAID volume. I ...
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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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Are there alternative systems to RAID?

The Wikipedia page on RAID says "RAID .... is a data storage virtualization technology". What other data storage virtualization technologies are there?
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HDD SMART test shows read error; should I toss the disk or scan for bad blocks?

After triggering SMART test (long) using smartctl, I have the following smartctl -a output: smartctl 6.5 2016-01-24 r4214 [x86_64-linux-4.4.0-142-generic] (local build) Copyright (C) 2002-16, Bruce ...
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Very slow bootup time after adding SSD - Windows 10

I wanted to increase the speed of my DLL PC so added a new 120 GB SSD hard disk in addition to the previously present hard disk, system boot up time became very slow. It is litreally stuck at bios ...
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Booting Windows from VROC RAID

I installed Windows (tried server 2019 as well as 2016) on a Intel VROC RAID0 Raid (VROC seems to be the only RAID option my SuperMicro X11Dai-N offers). During installation, I had to load the VROC ...
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In a NAS box, why would a volume be have Status Degraded, when the volume was only ever made up of 1 disk

I am running a FreeNas box with 5 HDDs in and each HDD has its own Volume associated with it. It has always been this way, none of the volumes have ever been made from multiple disks. Also the disks ...
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Is there a way to automatically detect new drive blocks and add them to a RAID?

I'm working on a small project that needs to be able to detect any number of newly added drives that have not been mounted, format them, and add an fstab entry to automatically mount them on startup, ...
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Recover 2 disk based JBOD on Synology DS207+ with DSM 3.1

I was asked by a friend if I am able to recover a crashed volume on a Synology DS207+, that was set up with a JBOD volume of 2 disks. At some point the system crashed (probably a power outage) and it ...
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mdadm shows inactive raid0 array instead of degraded raid6 after disk failure

I've been running an Ubuntu 18.04 system with an 8-disk raid 6 array, that crashed while having a faulty disk (I only noticed that there was a faulty disk after the crash). The raid array has survived ...
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How to recover Raid Volume from Degraded/Crashed state (btrfs / Synology)

The Volume on my Synology Expansion crashed and can't recover on its own. Drive is probably OK. It happen after cleaning the device from dust. Until that time Volume was also OK so I believe it ...
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Dell XPS 15 (9550) dual SSD

I recently opened up my Dell XPS 15 9550 to blow out some of the dust, and was surprised by the presence of an empty SATA bay next to the smaller 56 Whr battery. I only opted for the 256GB M.2 drive ...

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