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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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What's the difference between a HP P420i (2GB FBWC) and a HP p822 (2GB FBWC) Raid

I am looking to buy a HP ProLiant DL380p Gen8 2U 12x 3.5 (LFF) server and one of the configuration options I am being offered is whether it comes with an HP P420i or a HP p822 Raid Controller. However, from looking at the documentation on both of…
DigM
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Replace H330 with H730 controller in Dell T130 server

We carelessly sold a Dell T130 server with a H330 controller to a customer who wanted an as cheap as possible soultion. Due to performace issues he is asking now to replace the H330 controller with a R730 controller. Dell support tells me that that…
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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 4TB SAS disks in RAID1 configuration. My question…
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Are SAS expanders compatible?

At the office we have an Intel Modular Server (v2 I think), and we're running low on storage space (all drive bays filled, and we're only using 3 compute modules on this thing). As far as I'm reading the documentation and whatever else I can find…
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Adaptec 52445 RAID controller error 418: Bad block discovered, but which drive?

I started getting emails from this old controller last week, but they're not very descriptive: May 17, 2017 4:58:32 AM MDT WRN 418:A01C-S--L-- REDACTED_SERVER_NAME Bad Block discovered: controller 1 (39369000). Notably there is no…
James
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LSI MegaRaid SAS 9271-4i - "Upgrade Key Missing" after 2012R2 update

We have a ZealBox server 2012R2 with Supermicro mainboard and an attached LSI MegaRaid SAS 9271-4i controller running a RAID 1. After a normal Windows Update and a following attempt to reboot, the computer doesn't boot any more and shows the…
Felix Dombek
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Updating Raid Controller

I have a raid controller, LSI MegaRaid 8888ELP. This is an old 2008 raid controller that only supports 2TB drives. I have 3TB drives attached to it and I am just not using the extra space because I do no immediately need it. I have one main…
Tsangares
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ProLiant DL360p Gen8 + P421 + D2700 enclosure + hpsa - not seeing logical disk device (Ubuntu 14.04)

I have inherited a ProLiant DL360p Gen8 with two Smart Array controllers: # lspci -d '103c:323b' -k 02:00.0 RAID bus controller: Hewlett-Packard Company Smart Array Gen8 Controllers (rev 01) Subsystem: Hewlett-Packard Company P420i …
Adrian Frühwirth
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Disk renaming udev rule

I have two separate controllers, SATA and PATA. I would like to rename drives connected to the PATA to hd[a-z], and their partitions to hd[a-z][0-9]. # udevadm info -a -p /sys/block/sdd [...] looking at device…
udev
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settings on a PERC H310 crossflashed to 9211-8i/IR

I'm using MegaRAID Storage Manager on Windows Server 2012 R2 and am trying to change some settings on the card. Sadly, the settings are missing entirely from the menu when I right-click on the controller. Consistency check rate, bgi rate, rebuild…
Russell Uhl
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Raid 6 with HP P421?

I cant figure out if I need to buy a licens key to enable Raid 6 for this raid controller? I can't find where to buy one and I find pages where it says that its now free. sudo hpssacli ctrl slot=1 show detail gives me: Smart Array P421 in Slot 1 Bus…
user1506602
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windows 7 on hp proliant DL160 G9

I have a Proliant DL160 Gen9 that I have been asked to install Windows 7 on, even though no Windows 7 drivers seems to be available from HP. The reason for Win 7 instead of a more appropriate server OS is that this machine is a direct replacement…
Carl B
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Bandwidth with SAS expanders and RAID controllers

Having a RAID controller that has eight internal SATA3 lanes, you can get 6 Gb/s on all eight drives. What if I connect a 24 port SAS expander to an eight port RAID controller, do I still get max throughput of 8 x 6 Gb/s, or am I able to get 24 x 6…
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Swapping 3Ware Raid Card - Best Procedure

We have a server running an old firmware version and driver (just took this position) on the 3Ware 9650SE Raid Controller... We have been having issues with the server and seemed to have narrowed it down to the Raid Card... I will be replacing the…
Brian Jackson
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How many RAIDs per RAID controller

I am going to build a SQL server and I need to have four independent RAID 10s. I am looking at different RAID controllers to choose from. For instance I am looking at LSI 9260-8I but I cannot figure out how many RAIDs this controller supports. Is…
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