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Questions tagged [raid-controller]

Raid controller is a device to manage physical disks

Raid controller is a special device used to manage multiple physical disks and present them as logical units. It implements hardware raid. It can be referred to also as disk array controller.

Disk array controllers provide:

  1. Backend interface to communicate with the controlled disks such as SATA, SCSI, etc..
  2. Frontend interface to communicate with the computer host such as HBA.
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Install GNU/Linux No System Disk Error -- HP Smart Array

I have a HP Proliant DL360 g5, and am trying to install archlinux. It has a HP Smart array controller with 6 drives (all green) creating two logical volumes (one volume with 5 RAID6 drives, and the boot volume with one RAID0). I used the ORCA (array…
lmat - Reinstate Monica
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RAID card w/1x mini-SAS connector : how do I physically connect 16 disks?

I'm looking at a MegaRAID SAS 9240-4i Sgl card which has a single X4 Mini-SAS SFF8087 connector. As far as I know, such a connector can be expanded to 4 SATA disks. So, I would know how to connect 4 SATA disks. However, the documentation says it…
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Using an SAS Expander with a SAS Controller of a different brand

I'm planning on assembling a server, and I'm just wondering if a SAS expander by IBM (such as this one) would allow me to use the RAID and other features (Battery-backed write-back caching) of a SAS controller such as the HP Smart Array P400. Does…
Harry
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What's the right RAID Controller for my Dell Server?

I don't quite understand the significance of differences between the various Dell RAID controllers for my scenario, it would be great if you guys could help me choosing the right one. I don't want to burn money by buying something for no reason, but…
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zfs pool with slow speed on SAS drive with high latency

We have 3 servers in a gluster pool. Each computer's spec is (Advance STOR-2 Gen 2 at OVH): AMD Ryzen 7 Pro 3700 - 8c/16t - 3.6 GHz/4.4 GHz 6 x 14 TB disk (WD DC HC 530, using CMR technologies) western Digital Documentation 2 supplemental drives…
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System slowdown by RAID controller fading away?

May system runs on a RAID 5 on a RAID bus controller: LSI Logic / Symbios Logic MegaRAID SAS 2108 [Liberator] (rev 05) Since about a week the system becomes very slow. I get messages on the commant line like this (taken from syslog) Jan 17 18:16:12…
Timothy Truckle
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LSI HBA cards - span a virtual drive across two RAID controllers

I am able to create a virtual drive on one of the RAID controllers, but that virtual drive is isolated to that RAID controller. I setup four (4) eval RAID cards: LSI MegaRAID SAS 9271-8iCC + CacheVault Accessory Kit I am using them in a DataON…
Fahad Tariq
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HP ProLiant - GNU/Linux - Can't find RAID drives

I have a ProLiant DL360 G5. I would like to install Arch Linux onto this machine, but I'm experiencing the following difficulties: I have booted Arch Linux installation CD, but I can't seem to access the hard drives (visibly, there are 6). There is…
lmat - Reinstate Monica
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Connecting a Powervault 220 to R805

I'm trying to connect a dell powervault 220 to a dell poweredge R805 I bought a PCI express SCSI Card for the 805 (Adaptec 29320LPE) and plugged the vault into it. The server sees the card because I get the option to go in and configure the card…
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How to diagnose failed drive on server with raid storage controller?

I have problem with one of my Dell PowerEdge R210. Machine is with Centos 6, today system logs started to inform that the hard drive is failing. Jan 6 03:20:12 centos6 kernel: LSI Debug log info 31080000 for channel 0 id 0 Jan 6 03:20:12 centos6…
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IBM ServerRAID 6i Battery

I have an IBM Server which has a Raid Controller ServeRAID-6i. The battery of the Raid Controller is been swelled and I have to change it. I couldn't able to find the battery specification/voltages so I can replace it with the appropriate…
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RAID6 degraded drive during rebuild

Background and context I have a 3ware LSI RAID controller and a RAID6 setup over 16 physical disks. One of the HDDs died last night, and I replaced it with a brand new (identical) drive this morning. Problem The command /c0/u0 show gives me Unit …
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Alternative RAID Controller to an Adaptec 3805

Our server room has a HP DL180 G5 with 8 disks (RAID 6) and a flakey Adaptec 3805 RAID controller. I want to replace this controller as I don't trust it (See my first post for more details if you want background info.) Can anyone please recommend an…
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Slipstreaming Drivers for a PCI Controller Card into Ubuntu Server 10.04 Installation

I'm setting up a backup server with RAID10. The PCI Controller Card is new to the computer so the drivers need to be installed for the OS install to recognize it. I went through this process previously with Windows Home Server 2008 and ended up…
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Adding SAS/RAID controller disables network ports. Why?

I've built a NAS that has been running well for months. I recently decided to add a LSI MegaRAID SAS 9260CV-8i L3-25377-02B 8 Port 6GB/S SAS RAID Controller to it with a couple of additional 12TB HHDs (shucked EasyStores). For some reason, when the…
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