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Questions tagged [raid]

RAID, an acronym originally for Redundant Array of Inexpensive Disks (today usually interpreted as referred to as Redundant Array of Independent Disks), is a technology that provides increased storage performance and reliability through redundancy by spreading data across multiple disks using ...

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Failed GPU passthrough using Unraid 6.6.6 [migrated]

A while ago, I have build a new Ryzen setup. I am currently experimenting with Unraid 6.6.6 and trying to setup my daily Ubuntu VM with a passed through GTX 1060 from Inno3D. Unfortunately, I get ...
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Which type of failures I could face with ZFS over multiple RAID-0 drives?

I'm building Proxmox VE on Dell R820, as a Perc H710 card does not support path-through or JBOD modes. I've made a division to enable RAID-0 on 14x 1.0TB SAS drives for zfs storage and RAID-1 of 2x ...
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1answer
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Tests with smartctl vs smartd

I am looking into setting up smartmontools. I'd like to control when the tests run. I was thinking of running: /usr/sbin/smartctl --test=short /dev/sdX (every week) /usr/sbin/smartctl --test=long /...
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transfer raid 0 array from freenas to windows

I have three disks in raid 0 with some data on it (not mission critical). This pool was created on a freenas installation and I was wondering if there is a way to re-mount the same raid 0 array in ...
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28 views

Intel Optane 900P SSD - Windows Raid

Currently am trying to upgrade an iSCSI shared storage server for a SQL Server cluster (server is running Windows Server 2012, I plan on upgrading that at a later time). After looking at where to get ...
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16 views

MegaRAID SAS 2108 - Can I use different drives for the same array

I know you can in general use different drive manufactures and size in general but does anyone know if the MegaRAID SAS 2108 card will let me do RAID 5 with multiple drives that are not the same in ...
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22 views

How do I shrink a RAID5 (5 disks) & LVM?

seeking some guidance please. :) Debian 9.6 running on a NAS. RAID 5 across 5 drives with LVM. $ lsblk NAME SIZE FSTYPE TYPE MOUNTPOINT sda ...
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32 views

Software RAID missing after replacing motherboard - how to restore?

I had a perfectly good software raid (md0) on my Linux Mint 19 installation. I replaced the motherboard, using the exact same drives as before. However, now the RAID doesn't exist and won't assemble....
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1answer
23 views

Can ZFS mirror a single disk pool automatically? [closed]

I'm getting ready to add another server to my home network. I currently have one storage drive for it. I want to add another one to mirror the first drive, but can't purchase the second drive for a ...
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17 views

RAID : Why does out of sync happens?

I have a system running Software RAID 10 with 4 drives (only one partition is using RAID from those disks). The system, which is running Ubuntu 14.04, was unable to boot. Troubleshooting the problem, ...
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1answer
40 views

Windows encrypted software raid

Is it possible to have (preferrably with Windows-on-board tools of Windows Server 2012 R2 and Windows Server 2016) to have a software raid mirror on 2 encrypted disks? (Locally preferred.) From what ...
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32 views

Online capacity expansion of RAID10 on PERC H830 Unavailable

Per updates notes on Firmware ver 25.3.0.0016 (link), the PERC H830 now supports online capacity expansion (OCE) of RAID10 volumes with less than 32 disks. Our card is at firmware 25.5.x. We have ...
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31 views

Delete RAID 1 partition and grow another

I want to remove a software RAID 1 partition (md0) and grow the (md2) partition with the empty space without loosing md2 data. I was searching around but I'm not sure which is the better way to ...
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1answer
44 views

HP server with failed disk in hardware RAID 5, how to replace (have same-spec disk)?

My system Admin suddenly took an emergency leave and I am not so good in system administration. Seeking your help. I have a HP server running VMware. The server contain Hardware Raid 5 with three SAS ...
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Replacing a Server Need Input on Replacement [duplicate]

One of my customers has an older Intel S3210SH Xeron x3220 2.4Ghz Server with Windows 2016 Essentials on it, there are roughly 15 stations connecting to this file server / domain controller. All ...
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2answers
112 views

How to Migrate from Raid 0 to Raid 5. Dell Server t430

I have a Dell PowerEdge T430 Server with Windows Server 2016. The point is that now it's configured as a raid 0, and the client wants to change it to a Raid 5. I am afraid as if changing this could ...
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Change disk in Predictive failure on Proliant 360G7

sorry for my bad english. a physical disk of my Proliant 360G7 is in the state of "predictive failure" (honestly I do not know how long it is in this state). The logical drive has two disks ...
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smartd reporting intentionaly removed disk

Iam monitoring my SW RAID on server using smartd, the problem is i removed failed disk. The disk was already put out of any RAID and hotswap was put on his place. There fore i just simply took the ...
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1answer
93 views

HP dl360p G8 writes/latency with SSDs in raid very poor

I have a DL360P g8 server with a HPE p420i raid controller (2gb cache). We have noticed that writes to the SSDs via raid are incredibly slow. The drives in question I have in the arrays are: Volume 1 ...
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32 views

udev “by-id” symlink changes (SCSI ID) of RAID volume

I'm running openSUSE 42.3 across several systems with a RAID 1 volume configured. The /etc/fstab and grub configuration is set to load this volume by it's "/dev/disk/by-id/" symlinks. Oddly enough ...
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59 views

ZFS Faulted Pool Corrupted Data, resilver completed, incorrect paths, io error

I recently encountered a disk failure, for which I got a replacement disk, and successfully replaced the disk as well as completed the resilvering process. I was able to use the raidz2 without issues ...
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1answer
62 views

Btrfs Raid10 Two drives have failed. What are my options?

Here's my story: I noticed read errors on one of my four RAID10 Btrfs drives (/dev/sde). This occurred when I was attempting a backup using btrfs send/receive. I bought a new hard drive of the same ...
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29 views

See Pike raid status in ESXi 6.7

I am using ESXi 6.7 and have an Asus Pike 3108 card in the server. When I browse the Host | Monitor | Hardware | Storage I can see: Avago (LSI) MegaRAID SAS Invader Controller #0 But the status is ...
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1answer
67 views

LSI MegaRAID reports bad drive but SMART status is good

I am setting up a NAS with 8 known-good 8TB WD Red drives from a previous NAS. When I configure RAID 6 across these drives my (untested) LSI MegaRAID 9265-8I starts beeping and reports that that ...
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1answer
26 views

Read performance of RAID4

In the Wikipedia article for RAID, there is a chart which shows read performance of various RAID levels, and it claims that RAID4 has a read performance factor of 1-(1-r)^n -nr(1-r)^(n-1) while RAID5 ...
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If a RAID5 system experiences a URE during rebuild, is all the data lost?

I understand the argument regarding larger drives' increased likelihood of experiencing a URE during a rebuild, however I'm not sure what the actual implications are for this. This answer says that ...
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28 views

Expand existing data partition of raid volume to max volume size w/o data loss

I'm using an Areca ARC-1220 raid controller with 8x4TB HDDs (RAID-6). Initially, I had 2 volumes (à 12 TB, all data). My plan was to merge both volumes into one single volume. I deleted volume 2 (...
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2answers
33 views

PowerEdge T610 H700 controller upgrade

I have a PowerEdge T610 server with Perc H700 RAID controller. I wanna use the controller for non-raid, but I read some posts and the H700 controller doesn't support the non-raid operation. The ...
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1answer
53 views

When you format a RAID array using mdadm do you lose all data on the primary hard drive?

I'm trying to create a software RAID array using my computer, which has 200 GB free space, a 1 TB USB external hard drive, and a 2 TB USB external hard drive using mdadm. These directions instruct ...
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19 views

Dell Perc 6i - Move cable to other port, keep Virtual Drive?

Quick question. I have a Dell Perc 6i RAID controller and need to move the port cable from A to B (cable length issues). Can I just move the connector over and keep the RAID? Or will I have to ...
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1answer
38 views

Change data from one logical drive to another

I have a Fujitsu rx200S8 that has 2x500GB drives in a raid 0 configuration. I added 2x1TB new disks and created another raid 0. How can I migrate the data from the old disks to the new ones without ...
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1answer
211 views

HP Smart Array P410: Convert RAID10 to RAID1 OR remove disks from RAID10

I have a server with two RAID10 arrays of 146GB disks. I'm trying to replace one RAID10 array of 146GB disks with RAID1 of two 2TB disks. Since there are no free ports, I took out two disks from the ...
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1answer
203 views

Dell R710 RAID1 with SATA drives

I've slightly messed up with the purchase of a 2nd hand server (Dell R710) and need a little assistance. I had (wrongly) assumed that the server had RAID controller but it hasn't, so I need some help ...
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1answer
124 views

HpCISSs2 + \Device\Raidport0 issue

For some time in my HP DL380 G8 I have struggling with the problem with HpCISSs2 which is provider of \Device\Raidport0 was issued problem. In event logs this problem occurs many times per day. ...
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2k views

Low-end hardware RAID vs Software RAID [closed]

I want to build a low-end 6TB RAID 1 archive, on an old pc. MB: Intel d2500hn 64bit CPU: Intel Atom D2500 RAM: 4GB DDR3 533 MHz PSU: Chinese 500W NO GPU 1x Ethernet 1Gbps 2x SATA2 ports 1x PCI port ...
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1answer
29 views

highpoint rr640l raid 5 status disable, having difficulty with recover

I have been using a Highpoint RR640L controller (at BIOS version 1.5) for a couple years or more on my primary system. The RAID-5 volume contains 4 disks, 2TB each. This week, one of the disks ...
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Can You Mix and Match Between RAID Controller Connected Hard Drives and Hard Drives Connected to Motherboard via Standard SATA Cables?

Can You Mix and Match Between RAID Controller Connected Hard Drives and Hard Drives Connected to Motherboard via Standard SATA Cables? i.e. 1x Hardware RAID Controller / HBA Card, connecting to 4 ...
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3answers
48 views

Difference between software and hardware RAID 10 if the server suddenly shut down

today I have a question that I can not answer. Our servers are dual power and battery. The operating system never crashes. (thanks linux) Now, I wonder what happens if the server suddenly shuts down?...
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How to setup bootable RAID 0 on remote server

I have a remote server with 2 identical 500Gb SSD, sda and sdb. A rescue mode is also available from the cloud provider's interface. How to get Debian installed on a bootable RAID 0? I understand I ...
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1answer
41 views

Dell H200 RAID controller + SATA drives

I've bought a H200 hardware RAID controller to go into a Poweredge R210. I've got two 2TB SATA drives to setup as a RAID1 array. The question I have is: Do I need to connect the SATA drives to the ...
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2answers
96 views

Why does dd make the host unresponsive?

As root I yesterday did dd if=/dev/zero of=/var/lib/libvirt/images/dat.img bs=1G count=1000 and for many hours it made the server completely unresponsive. The raid controller is an HP P410 with 4 ...
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0answers
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Removing failed Raid0 volume from CentOSv6 boot sequence

I need help. To date the majority of my Linux 'software RAID' use has been done via the Graphical Installer. Now, one of the drives comprising my RAID-0 volume has failed and at boot, the system ...
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1answer
55 views

Unalloacte space on RAID1 over LVM

I ran into situation where i resized vg and pv under raid1 and also md0 itself, but gparted still se whole disk as locked, i cant use free space i made to build new RAID partition, not sure why. My ...
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78 views

Installing Ubuntu 18.04 VM with Raid1 on ISCSI Server

I'm trying to create a VM (Both Guest and Host are Ubuntu Server 18.04) that uses 2 ISCSI Targets as a RAID 1 for the operating system. The goal is to have 2 Different ISCSI Servers that each hold 1 ...
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1answer
159 views

Poor write performance of software RAID10 array of 8 SSD drives

I have server with Supermicro X10DRW-i motherboard and RAID10 array of 8 KINGSTON SKC400S SSDs; OS is CentOS 6 # cat /proc/mdstat Personalities : [raid10] [raid1] md2 : active raid10 sdj3[9](S) ...
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2answers
28 views

Information needed on availability of RAID controllers that have hardware encryption capability

I am somewhat familiar with the RAID controller card offerings in Dell servers, such as PERC H730P in their PowerEdge servers. And also some of the LSI 9xxx series RAID controller cards, that allows ...
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2answers
55 views

What are the pitfalls of having an “unbalanced” RAID1?

Context: I have a server with two 3TB NAS drives in a RAID1 (Linux dmraid) and I am looking to double storage capacity, but I only have one free drive bay. I could purchase two 6TB drives, but I had ...
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1answer
70 views

Windows Server 2016 Any way to see current raid 5 setup status?

Im very impatient. I want to see some sort of percentage for a new raid 5 setup i started a hour or so ago. Is this possible? im not finding anything on it. I would like to watch it, like paint drying....
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48 views

Will exchanging a disk between two Dell Powervault MD1000s lead to data loss?

I have 2 servers, each with a Dell Powervault MD1000. I would like to take one disk from the first Powervault and relocate it to the second Powervault. When I reboot the server, enter the perc ...
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1answer
26 views

Increase hardware RAID1 volume size

We are working with an IBM server and a SAS1064ET hardware RAID controller. We used two 73.4 GB 10k SAS HDDs with RAID1. As we wanted to upgrade the storage, we replaced one after another with a 600GB ...