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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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38 views

Why is one drive running at 3.0gb/s?

I have a server where I will be updating the Adaptec RAID controllers firmware and drivers soon, and so I was arcconf to check a few things. The four disks are all the same model configured as a ...
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14 views

what is the difference between a sas controller and a sas raid controller?

What is the difference between a sas controller and a sas raid controller? Are they the same thing, just named differently, or is the SAS Controller purely a connection point with no RAID capabilities ...
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37 views

RAID 5 to 2x RAID 1

Is it possible to convert RAID 5 to 2x RAID 1 without any data loss? Example: 3x 1TB HD in RAID 5 + 1x 1TB like Hot Spare convert to 2x 1TB RAID 1 + 2x 1TB RAID 1
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29 views

HP G8 server and disks [closed]

I'm looking to get an HP G8 server to create a ZFS based file server solution. One of the things that I read is that starting with G8, HP Changed their caddies, and it now performs disks check to ...
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2answers
28 views

HP DL360e G8 with P410I

Can I use a P410i RAID Controller in the HP DL360 "e" version G8 server? I currently have several G7 boxes with 410i's in them, working fine. I see listed in the QuickSpecs for the DL360"e" versions ...
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14 views

Can't boot on Ubuntu Server with RAID1 on hp-Proliant N54L

I've been struggling for some hours to install Ubuntu server with Raid1 on a N54L server. When asked where to install grub I chose the disk with the /boot partition. Boot fails with: "error: disk ...
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2answers
22 views

Reading hardware-raided disks with software raid

I have a computer with 2 disks on it in RAID 0. Unfortunately this PC just died yesterday and I need to get a VM out of the disk to transplant it in another computer, but I'm not sure if the raid ...
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49 views

Windows Server 2016 on IBM System x3200 M3 missing drivers during install

I'm trying to set up an old surplus server in my home to work as a NAS. I have it configured in the UEFI with 4 HDDs working in RAID 1. I have a 5th hard drive I had lying around, so I threw it in ...
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1answer
38 views

MegaCLI RAID1 - Can't Replace Missing Disk

I have a RAID1 where I've replaced a disk with errors, however it will not automatically or allow me to manually replace the "missing" disk with the new one. Here are the physical disks per my ...
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1answer
19 views

HP RAID-0 expand on DL180G6 [closed]

There's HP DL180G6 Server with HP Smart Array P410 controller. Server running MySQL on Debian Linux with ext4 fs. HPACUCLI utilities (ACU CLI Version: 9.40.12.0) are installed. There's 4 HDD Seagate ...
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1answer
33 views

Migrate RAID 6 drives from LSI 3ware 9690SA-8I to LSI Megaraid 9271-8i

I have an older system using an LSI (now Broadcom) 9690SA-8I, on a motherboard that's failing, can't have more RAM and is inadequate. I thought I was so cool getting a new AMD Threadripper system ... ...
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59 views

Attach SATA SSD to HP DL360 G7

Recently I bought a Samsung SATA SSD and I attached it to the server (HP DL360 G7), As I want to use this drive as a single drive (Not Raid) So I configured the server for Raid 0, But I don't get full ...
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0answers
41 views

RAID 10 failed during rebuild, due to bad sector, [on hold]

We have an iOmega NAS with 4 HDDs in RAID. 1- md0 is a RAID-1 on all 4 HDDs containing iOmega's own system files. 2- md1 is a RAID-10 which contains our data in this configuration: HDD1 & HDD2 :...
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0answers
33 views

Saving a 3ware RAID configuration for later use?

I have a 3ware-based (using tw_cli) 24-bay array filled with 2 TB hard drives, used for backup. The plan is to upgrade them to substantially larger drives, but I would like to remove the 2 TB drives ...
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45 views

Drive keeps on being unassigned after reboot - B120i Raid Controller

I own a HP DL320e G8 Server. I've disconnected my disc drive, and instead have opted in to install a SSD instead. The SSD is recognised by the system, under the B120i Embedded Raid Controller. I ...
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40 views

Dell PowerEdge RAID controller: Configuration of NVRAM and drives mismatch(Normal mismatch)

The question is what is the reason of this problem and how can i solve it without losing data on disk When server boots the following messages appears: bios of raid controller configuration of disk
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2answers
65 views

Accidental SAS cable removal

We accidentally removed a SAS cable from an active AVAGO MegaRAID controller during a troubleshooting session. After we reconnected the SAS cable, all disks in the RAID6 disk array are reported as Frn-...
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55 views

Hard Disc Failure or RAID Glitch

I am trying to determine if a my hard drive is actually bad or if there was just an unexpected error with the RAID Card. In other words, should I reset the drive and make it a global hot swap or ...
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1answer
25 views

Raid 5 failure on P400i Controller

I was hoping for some help. My server won't boot up into Windows and I get the following errors: 1794-Slot 0 Drive Array - Array Accelerator Battery Charge low Array Accelerator Posted-Write ...
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1answer
45 views

MySQL perf bad on SSD-based server. Small tables. MySQL config? RAID?

I have a couple of servers in an industrial setting (air-gapped network) that do some fairly light telemetry gathering. We generate about 10GB of telemetry history in ~30 days. All telemetry goes ...
4
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1answer
140 views

SSD IOPS on linux, DIRECT much faster than buffered, fio

I have a 30Tb-sized hardware RAID-6 system (LSI 9280-8e) of 10 DC-S4500 Intel SSDs that is used for database purposes. The OS Debian 7.11 with 3.2 kernel. The filesystem is XFS mounted with nobarrier ...
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1answer
32 views

How to pre-emptively repair/replace drive in linux md array without going degraded first?

I have (had, it's already been swapped out, asking this for future use) a drive that is indicating pending failure with internal SMART tests and bad block remaps. It is straightforward to mdadm --...
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1answer
49 views

Drop-in replacement of Dell H330 controller with H730(P)

I am (slowly) upgrading some Dell servers. One of these has a H330 PERC controller which is quite slow (no cache, etc.). So I'm considering upgrading it to a H730P. It is a secondary server with two ...
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55 views

Persistent multiple medium errors on LSI RAID array

One of our SuperMicro servers with an onboard LSI 2308 RAID controller has been having issues with our main RAID10 array consisting of 4 Seagate 600 PRO SSD drives (in slots 0,1,2,3). It started with ...
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0answers
66 views

Extending RAID 10 on MegaRAID

So I had a few servers with 8 drives configured in RAID 10. Four pairs of two drives in the RAID1 level. One of the drives went bad and the RAID controller removed one pair from the set, so it now ...
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61 views

Strange await times in iostat output

I am seeing strange big numbers as w_await times (like 5 million ms) on a server with 2x SSD in MD RAID1. Scheduler is deadline. OS is Debian 9 with kernel 4.9.65-3+deb9u1. Is this just some sort of ...
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1answer
109 views

Adaptec RAID Controler - Logical device in Failed state

I have a hardware Adaptec ASR8405 RAID controller on which I have 15 disk RAID6 Array. One of the disks broke and after the replacement the Controller did not pick up on it, did not start the rebuild ...
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1answer
39 views

Is it possible to convert RAID1 to RAID0 without system reinstalation?

I bought the E3-SSD-3-32 server from the SoYouStart offer. There is a 3x120 GB SSD drive. Unfortunately, after some time, there was a lack of disk space. Is there any way to convert RAID1 to RAID0? ...
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0answers
82 views

Xenserver 7 does not see new raid array just added on Dell R710 server

I have a question regarding how Xenserver 7.0 sees and add local storage raid arrays from a Dell R710 server. Originally, the server came with a raid 5 setup of 4 hard drives, for a total of 800GB of ...
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1answer
25 views

HP P410 offline RAID expansion and migration

I have a 2 x 146GB SAS in RAID1. I bought 2 more, same specs drive. I am on a production server. I have a P410 with 512MB cache, but no battery. I can afford a downtime. My questions are: Can I load ...
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2answers
91 views

Upgrading firmware for a PERCH700 RAID card on an old Dell Studio XPS 9100 desktop, running CentOS 7.5 [closed]

I run a home media server on an older Dell XPS studio 9100 desktop with a Dell PERC H700 RAID card. I've been trying to upgrade firmware on the perc card and I haven't been able to, always get: [...
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1answer
43 views

RAID0 mount fault: how to restore/recover data (disks do not seems faulty, superblock issue)

This morning, when I arrived at work I found my calculation server was not responding: I ran some calcultations this week-end on it and this morning it did not want to respond. Screens stayed off and ...
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2answers
462 views

RAID vs software defined Block Storage

As far as I understand was RAID invented to protect from hardware failure induced data loss: Say, you have 2 harddrives in RAID1, one goes south, lucky you, the other one got your data. Say you want ...
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2answers
111 views

Dell MD1220 RAID issue

This is probably going to be the stupidest question of the day, but I have to ask it because I can't seem to find an answer anywhere else. With that said: It is my understanding that EMM 0 serves ...
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1answer
148 views

MegaRAID: what does yellow “r” on drive icon mean?

One of our drives has a yellow square overlay on its icon in the Drives list. I think there's an "r" in the square (see image). I can't find this described in the MegaRAID manual anywhere. When I ...
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1answer
109 views

lsi megaraid migrate raid 6 to raid 5 without data loss?

I'm using a LSI MegaRAID SAS 9260-8i controller, firmware version 12.15.0-0189 with 8 physical drives. I currently have the main array running on RAID6 with 5 disks and second array on RAID1 with 2 ...
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0answers
51 views

Resize AWS EBS raid0

I've got an AWS raid0 array that I'm struggling to resize. The underlying EBS volumes have been increased in size, but I'm not able to re-size the array to resize the FS. I've tried using mdadm and ...
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0answers
30 views

Fujitsu Server not recognising HDD in Server View

We bought a new Fujitsu server (Primergy rx2530 m4) and 4 EVo 860 SSD's. I set it up everything worked fine. We decided we need another one and bought exactly the same server but 2 HDD's (Fujitsu ...
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23 views

ubuntu 16.04, ultrastor RS16SS, cannot be detected

i have a ubuntu server, and when i connect an external RAID ( ultrastor RS16SS, volumn built ) to it, dmesg -w only reads : [161990.587826] mptsas: ioc0: add expander: num_phys 38, sas_addr (...
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1answer
44 views

Plan for hot replacing damaged RAID-1 drive in freebsd 9.0

i have System FreeBSD 9.0 with RAID configuration # mfiutil show config mfi0 Configuration: 2 arrays, 2 volumes, 0 spares array 0 of 2 drives: drive 4 ( 558G) ONLINE <SEAGATE ...
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1answer
97 views

Recover RAID 1 after unclean unmount

I have two drives in my desktop in RAID 1. My computer locked up on me yesterday, so I used SysRq REISUB for a "safe" restart. When the machine booted back up, I realized there was no data on my RAID ...
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1answer
168 views

Why does mdadm --zero-superblock preserve file system information?

I have two hard drive partitions, which I have combined into a RAID1 using mdadm, and created an ext4 filesystem on the resulting device. When I mdadm --zero-superblock the two partitions, and re-...
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0answers
34 views

LSI 9211-8 or 9650se for a ZFS Pool

I'm putting together a white box (smartos) for our dev team with some of the leftover hardware we have. The server chassis I'm going to use has 8 swappable drives and I'm trying to determine which hba ...
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2answers
240 views

Why does my supposedly hardware-based RAID appear as a “fake raid”

I have a low-end server for a SOHO set-up: a Gen8 HP Microserver. It has a built-in Dynamic Smart Array B120i (RAID) Controller. When booting the server up before any OS was installed I was able to ...
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1answer
28 views

Small raid array of large drives or large array of small drives?

I'm looking into building a NAS for file storage, and I'm trying to determine the right scenario for my use case. I'm looking for about 32TB of raw storage, and no less than 16 useable given a ...
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1answer
44 views

How can I make old hardware work with new (large) drives?

Good afternoon, I picked up three Dell Poweredge 1950s and 4 SunFire X2200s from my local surplus store with the intention to finally build that cluster I've been thinking about for a few months. ...
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0answers
33 views

Recover data from a Linux software RAID1

I get a new customer with a failed old server (it does not boot anymore because of a failed CPU). Unfortunately the customer does not have a backup and I am trying to recover data from the hard ...
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1answer
32 views

One drive failed in my RAID 1 array, am I safe to replace it without losing data?

We have a server with three disks. Two of them are in RAID 1 defined in BIOS. One of these is showing an error at the bootup screen with the corresponding disk serial code in red. I intend to replace ...
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2answers
150 views

New HDD reading 1.3TB instead of 8TB

I work at a very small company (8 people) and was given the task to add an HDD to our server to do incremental backups. We bought a new 8TB IronWolf HDD but after installation the server computer can ...
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1answer
182 views

Confusion over RAID controllers for Dell R620 - what will work?

I have a (remotely located) R620 server with an H310 PERC controller (Described as "405-1110 : H310 Adapter, low profile", part R1DNH - What I've got is definitely a PCIE card. First question - What ...