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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20 views

How do I seperate drives in my file system (ubuntu server)?

I recently bought a HP Proliant DL360G6 and it has 3 hard drives. I installed Ubuntu server LTS 20.04 without raid configured and now I realize that all three drives have been merged (idk if thats the ...
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ReInstall Linux OS But Save RAID

I have a system with the following RAID: RAID-10: 4×12TB HDD SATA RAID-1: 2×240GB SSD SATA OS is installed on RAID-1: 2×240GB And RAID install by mdadm I want to reinstall Debian 10 OS on RAID-1: ...
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Purpose for dual M.2 ports? [closed]

I just bought the Gigabyte Aorus PRO WiFi and it comes with two M.2 slots. I use one for the OS and I'm not sure what to do with the second slot? Put my Games on there? Create a SSD RAID? Create a ...
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Native IO performance of 1 pagefile per physical drive in off-the shelf configuration vs software or hardware RAID

Windows 10 allows to assign pagefile sizes for individual logical drives. In my case, both the main boot SSD and an extra SSD have their entire size dedicated to a single logical drive each. Now I've ...
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Windows freezes when accessing optical drive when SATA mode is set to RAID

I have a Asus X570-E motherboard with a couple drives connected in raid on the SATA bus. I've set the SATA mode from AHCI to RAID, and configured the raid successfully. However, today when I ...
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How to connect additional drives to HBA controller?

I have a HBA 330 IT controller which has 2x4 12 Gbit/s SAS (or 6 Gbit/s SATA) ports, available through two SFF-8643 mini-SAS connectors. Though it has only 8 ports, it can aparently support up to 32 ...
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Device multipath setup interferes with software RAID setups on CentOS

I'm using a default installation of CentOS (well, a subset really for oVirt nodes which, at least to me, seems to be the same for the "core part" of the system). It's running on a Supermicro server ...
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Rebuild Intel Rapid Storage RAID 10

I recently moved and decided to transport my hard drives separately from the rest of my computer (to avoid hard drive vibration damage). Unfortunately, I forgot the order the drives were in and now ...
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Windows 7 machine cannot connect to Ubuntu 18.04 file server

Please excuse me if this has been asked, I have looked all over the web for an answer and turned up nothing. My Problem: Neither My windows 7 machine (called Executor) Nor my Windows 10 Machine (...
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Why is there an “8 bay” limit on Seagate Ironwolf and WD Red NAS drives

I just purchased a Synology DS918+ and have installed four 8TB Seagate Ironwolf drives. One reason I chose the DS918 was the potential for future expandability using the DX 517 which provides 5 ...
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RAID 5 with SSDs; how many and what class of SSDs to use?

I have a 850 EVO 250gb as win/programs/games disk and I am thinking buying more SSDs to go with RAID 5 in order to gain more speed. I know the pros and cons of RAID 5. The question is: 5 cheap 120gb ...
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Replace 2 mirrored (RAID 1) drives with two news drives and keep the data?

I have a Qnap TS-419P+ and running 4 drives in two groups mirrored. 2 x Hitachi HUA723020ALA641 MK7O and 2 x Hitachi HDS723020BLA642 MN6O. I want to replace one of both sets now with 2 new Toshiba ...
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Is it possible to add aditional disks to LSI RAID1 array?

Just installed a LSI 9750-8i to my old system with Windows 8.1, added two 2TB disks to SAS-0 port, created RAID1 with them, assigned a letter E: and started cloning data to it. Is it possible to add ...
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Why is Raid 10 better than Raid 01?

It would appear to me performance wise, they are the same, isn't it true? That is, if we write a 1GB file to Raid 10 or Raid 01, then we are letting each drive write 500MB of data, so it is increased ...
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RAID 1 Drives Failed status after Windows 10 rebuild (Intel to AMD)

About a year ago, I setup a RAID 1 - two drives mirroring each other on my PC running Intel CPU and Windows 10. I configured it in Disk Management. A few days ago, I rebuilt it with an AMD Ryzen 5 ...
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Can I set up a Raid 0 and access it on Mac + Win 10

I have a Z820 with two OS PCIe SSDs: 960 Pro NVMe (Windows 10 OS) 970 Plus NVMe (MacOS Mojave) Can I set up a RAID 0 storage array [Highpoint 3740A] using two 4TB HDDs, then access the storage array ...
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What is my strategy of choosing a RAID controller if I want to be sure I can find a replacement in the future? [closed]

A RAID array can provide additional reliability against HDD failures, but what do I do in case when the RAID controller itself fails? The question includes both self-sufficient NAS/DAS boxes and ...
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PERC controllers (e.g. h710) - do they issue flush command when underlying devices have cache enabled?

Question essentially as in subject - as I've been trying to find any sensible info about it, but to no avail: we create say - raid 1 from 2 mechanical drives - and quality drives, that do not lie ...
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Should I put all four HDDs into NAS even if I do not need the their full capacity right now?

I have new four-bay NAS (Synology DS418play) and four new 4TB HDDs (WD40EFRX). Is it advisable to put all disks into NAS right away, even if I do not need the full storage capacity? Or should I put ...
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Can I read from a 2-disk RAID 1 array from a 2-bay external USB disk dock?

I have 2 disks which were the only disks in a Linux RAID 1 array. The RAID information is still readable via mdadm when mounted externally via USB using my 2-bay disk dock. Is there a way I can read ...
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Is it possible to install two SSD M2 drives using only 1 SATA port?

I have a six years old Toshiba laptop computer. It has traditional mechanical hard drive with SATA3 interface. It has no M2 SSD interface. I am wondering if it is possible to install 2 SSD M2 using ...
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How to determine if whether a disk was part of RAID 5 or RAID 1?

I have two disk I'm clearing up but I forgot whether they were part of a RAID 5 array of 4 disks or a RAID 1 array of 2 disks. Is there any traces I can look at to determine? The RAID would have been ...
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Non-specific kernel errors with new hard drive, is the drive failing?

I am running CentOS 7.7.1908 on a server with a RAID5 array (using mdadm software RAID). The array consists of four 4 TB drives. I recently replaced some of the drives with brand new WD Red drives. ...
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Rebuilding Raid0 or JBOD from NAS

I had 2 x 2TB HDDs in a Buffalo CloudStation Pro Duo NAS. Several years ago, I decided that I do not need this NAS anymore and wanted to put them in a disk enclosure to connect the disks via USB. In ...
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Reshaping RAID-1 to RAID-5 hangs forever

I have a problem with reshaping RAID level 1 to RAID level 5: it's been hanging at 41% for a few days now. Some background (verbose, since I don't know will end up being relevant; apologies). The ...
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AM4 RAID-driver install on existing Win10 without wanting to actually use a RAID-setup

I have had an Issue for a few weeks now, where my OS (windows10) just locks and doesnt work until you restart it. Looking through the event viewer lead me to this solution: https://forums....
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Windows installer do not detect SSD connected to HBA controller

I have SuperMicro CSE-846 SuperChassis X9DRi-F 4U 24x 3.5" server I use this HBA controller: HP (779134-001) H240 Smart HBA I put two SSD's that i want to work in RAID1 and install windows server ...
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How to implement dm-integrity?

I am currently planning the setup of my new NAS using Debian 10. So far I've got the following stack: 2x HDD --> MD RAID-1 --> LUKS --> LVM --> BTRFS + Subvolumes I plan to add more ...
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Sata 2 vs Cacheless SAS6G JBOD Performance

I have some "old" servers here, using Asus P9D-MH/SAS/10G-DUAL https://www.asus.com/Commercial-Servers-Workstations/P9DMHSAS10GDUAL/ This board comes with a SAS 6Gbps controller, an LSI SAS2308 ...
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CentOS Understanding Failed Software RAID Array

I have received two notifications from our main server today about failed disks in a raid array. This appears to be a software raid setup years before I started at the company by a past staff member. ...
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Remove RAID-0 from two NVME drives to dual boot win10 and Ubuntu

I currently have two Samsung EVO ~500GB NVMe drives running Windows 10 in RAID-0. I would like to remove the RAID-0 configuration and use one of the disks for Ubuntu 18.04 while the other disk remains ...
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Problems installing an LSI MegaRAID 9341-8i in Dell t5810 workstation

I have been working on building a home server for learning purposes and also to keep my family media stuff. I decided to go with a Dell Precision T5810 workstation as I got it cheap, for only $200; ...
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Can I grow Linux VMware partition with RAID 1 below?

0 Imagine I have rootvg design as below: /dev/sda |___ /dev/sda1 |___ /dev/sda2 |___ /dev/sda3 30G [part] |___md1 30G [raid 1 ] /dev/sdb |___ sdb1 |___ sdb2 ...
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Windows 10 - RAID5 - Intel RAID or Storage Spaces?

Which method should I use to RAID5 my 3 drives? At the moment I started out with Intel's RAID but it seems super slow. Steam can barely download with 10M/s speeds and the array sometimes have ...
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Ubuntu 14 - Remount a raid1 on 8TB GPT disks

I added 2 hds on my ubuntu 14.04 server. Using the gdisk utility I initialized the disks as GPT. With mdadm I created an array raid1 and then formatted the unit (/dev/md3) as ext4. I used the unit ...
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need help installing window 10 on raid 0. with rog crosshair viii hero (wifi)

I follow the tutorial from Asus and level1tech to set up mobo rog crosshair vii hero (wi-fi) for raid 0. install the AMD drivers needed for windows when I hit next to actually install windows 10. I ...
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New 2x SATA 12TB drives, failed during RAID1 init, S.M.A.R.T. error

I've recently set up a machine with Threadripper 3960X and Zenith II. I bought two 12TB Seagate drives (Barracuda Pro) with intention to set them up in RAID1 using motherboard's onboard RAID. Now, I ...
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How to migrate mdadm RAID10 with 4 disks to RAID5?

I have a software RAID10 based on Linux’ mdadm under Debian Buster. Originally I found RAID10 had best performance. But I need more space and accept to trade some write performance for +50% space. # ...
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How does loss of single drive influence 4k random performance of RAID 1 array?

Here is one explanation of the benefits of RAID 1: "As different disks can seek on different data, it [RAID 1] has up to 2x the random read IOPS but the same 1x (or slightly lower, due to overhead) ...
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From AHCI to raid and back to AHCI. Made C: and D: into raid, can I recover D: files?

Computer Windows 10 desktop ASUS Prime Drives: SSD Samsung EVO, Samsung PRO, m.2 NVME C:= EVO D:= PRO Windows would not load, stuck in dot spinner, even repair and USB everything got stuck in ...
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Windows 10 Pro - Very Slow Bootup // Here's My :: Windows Performance ToolKit (ETL) File

PROBLEM I installed a FRESH copy of Windows 10 Pro onto my formatted SSD RAID0 drive. This is not an Upgrade from an older OS. Each time on startup (not from SLEEP but actual full startup / restart)...
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Which SD Card spec satisfies Sata 2?

So I have this old MacBook from 2010 whose internal HDD can be swapped. Because the old HDD died, I bought a cheap 1TB SSD and threw it in there. Not even a brand I know or anything but I really just ...
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Long-term local offline RAID storage of never-changing data

I have about 20TB of data that will remain unchanged (forever) and I am planning to make offline copies with a little redundancy. I already have a lot of 2TB drives that I plan on using and I am ...
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Windows Storage Spaces incorrectly reporting drive space

I recently set up a Storage Space on Windows 10 Pro for workstations. I am using a pcie nvme card that holds 4 drives, I want to stripe these into a RAID 0 array. I used the storage space GUI in the ...
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Is it possible to merge a normal drive and RPN SAN?

I have two physical drives mounted as Raid 0 mounted on /data I have another RPN San drive mounted on srv is it possible in one way or another to merge that srv with the /data in a sort of software ...
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Migrate from Intel RST to RAID Controller without data loss

For some years now I have used the Intel RST to create a RAID 5 for my drives connected to the mainboard. I now need to move these to a dedicated RAID controller because my Storage requirements are ...
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41 views

Unable to re-assemble RAID1 using mdadm — failed to run array, invalid argument

I'm trying to assemble a RAID1 array using mdadm. I'd like to be able to debug this error, but I'm not sure where the error actually is, other than "Invalid Argument". Here's the main log. I can't ...
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Raid Controller doesn't work after installing

This controller actually caused multiple problems. First, the AMI-Bios had a constant beep, where the internet says it's a power adapter problem. After some time, the Bios worked and didn't beep ...
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Unable to convert basic volume boot disk to raid 0 boot disk

XY Problem: I was running out of space on my 256GB SSD Boot drive. I have several other drives that are mostly full and take up all my SATA ports. I bought a new 4TB drive to move some stuff over ...
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Windows RAID 1 Partition Failed - But Not Rest of Drive

About 4 months ago, I installed two new identical Kingston SATA interface SSDs on a Windows 10 machine, then partitioned them out reserving 100GB on each for what would become a mirrored (RAID 1) ...

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