RAID solution with hardware assistance. RAID parity calculations can be performed by either the main CPU, or by a separate processor on the RAID controller card.
Questions tagged [hardware-raid]
674 questions
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Can not access PowerEdge Expandable RAID Controller Configuration Utility
I've looked online but can't find a solution. On post it says press ctrl+r to enter configuration utility and i do that. it then says
1 virtual drives found on the host adapter
1 virtual drives offline
1 virtual drives handled by bios
Initializing…
Optiplex
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How to get temperature readings of HP P420 RAID PCI-e card?
I have an HP Proliant ML110 G9 Server.
Added an HP Smart Array P420 PCI-E card to have real hardware RAID on the server. Everything works fine, but I noted that the P420's processor was extremely hot (I realized by touching the sink). Added an extra…
J.L
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Is putting Server 2019 (full os with hyper-v) and 2 2019 Guests on a single two-disk Raid 1 array reliable enough?
We're currently experiencing some significant cpu/ram performance issues with 2 VM's on our current HPE 2015 tower server (2x Xeon 8c/8t 1.7ghz) running server 2012 for HV and guests (10 guests total), so we're looking at getting a HPE DL325 1x…
Joe
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Data layout on RAID-1 Array
For the sake of this question, assume a RAID-1 array of two identical drives.
RAID-1 (Mirroring) stores an identical copy of the data on both drives.
How identical is the drive layout?
Are the drives sector-by-sector identical (logical) - Excluding…
GCon
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Hard disk drivers for Windows Server 2008 R2 installer
I'm trying to install Windows Server 2008 R2 on my server that uses RAID 1 on 2 146GB SCSI drives. However, when I get to the partition selection screen, nothing displays. I'm guessing this is because the installer doesn't know how to interface with…
panoptical
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Recover data from IBM x3650 with SYS BRD ERR
As in every sysadmin nightmare after shutting down a server I'm not able to power it on any more. The server is an old IBM x3650 M4, which has been shut down because unused and of course when not available users recalled they had something left…
Maxxer
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Very Low IOPs on Array of 16x 15K SAS Drives
I'm having issues with one of our servers that is running 16x 900GB 15K SAS drives in a RAID 1+0 Array on a PERC H710P, under normal load its doing ~450 IOPs (almost all writes) and has a backlog of ~80ms, when testing the speed with dd if=/dev/zero…
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Does this SMART report indicate a bad disk?
On a remote server, I have 2x3TB drives set in raid 0 with SLI raid card.
I tried to run SMART tests to see if drives have a problem because server become unresponsive and one drive had to be put back "online" manually.
Drive ids are 4 and 5, this…
adrianTNT
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What is the risk of RAID 0 for a *single* disk versus no RAID on that disk?
I have a server that I'm having trouble with getting the drive to show up without using RAID. However, that's different question. This question is about the problems running a RAID 0 on a root drive in a server and what potential problems it could…
user250795
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How to mount a RAID array on a Linux server if it does not appear to be listed?
I am helping to administer two CentOS 5 servers, on the "user" side of things. A RAID 1 array and a separate single hard drive were recently added by IT support. According to the IT support, both of these are ready to be mounted on either of the…
Jake
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Replacing RAID 1 with larger drives - professional standards
I work with one of the biggest hosting companies on the planet. I got a dedicated server with hardware RAID 1 and two SAS 15k disks. I asked my hosting company if they could replace SAS with much bigger SATA drives as I need space on this machine, I…
rumburak
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Megaraid storage manager. How to add drive in RAID 0 with OS
I have a LSI megaraid sas 9271-8i controller and 8 physical drive.
I have error on Slot 0. Media count error: 1568 and Pred fail error: 12.
And I have error such as:
How can I check a partition of physical disk in MegaRaid Storage Managment? I think…
Sasha Dzuruk
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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? (motherboard, processor?)
In this case, if I want…
Dylan
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Is it possible to run 2 arrays of RAID 1 on the same server (HP XW6600)
We are running our datacenter with one array of RAID 1 (with 2 x 2TB) on a HP XW6600 (CentOS 7).
We'd like to increase disk space and avoid as much as possible downtime while upgrading.
There are currently several solutions:
Switch from RAID 1 to…
The-Vinh VO
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How many drives can fail in an Xserve RAID in RAID 0+1?
I’m torn between what I know (or think I do) and what Apple’s documentation states.
The hypothetical setup I’m considering is what is described as RAID 0+1 in Apple’s documentation for the Xserve RAID, which usually means a mirror of two striped…
kumowoon1025
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