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 various algorithms (RAID-levels). RAID can be implemented in hardware storage controllers, or in software, usually as operating system/kernel features.
Questions tagged [raid]
3655 questions
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Recommended Win2k8 Server software to fix my RAID-0 issue
I'm running an Asus P6T V2 Deluxe. It has six SATA ports and supports onboard RAID.
I am using two of those ports for a RAID0 array of 1.5TB Seagate drives using the onboard RAID controller. One of them is giving me SMART warnings and I want to…
Jason Kealey
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Automate monitoring of Intel Matrix / Rapid Storage Technology RAID arrays
I need to monitor the array status of the Intel integrated RAID controllers (e.g. ICH7R, ICH9R, ICH10R) on multiple servers. Intel suggests using "Intel Matrix Storage Manager" or "Intel Rapid Storage Technology", but the programs do not provide way…
user51440
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How long should the initial creation of my RAID 5 Array take? This seems ridiculous
I'm building a raid 5 array with 3 1.5TB drives on CentOS 5.5 using mdadm. Everything seems to be working fine, except it's taking forever and I'm not sure if that's normal. It's going on 6 hours now and /proc/mdstat says it's only at 6% (@…
jlorich
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How do you install Ubuntu Server with a custom kernel?
I'm installing Ubuntu Server in a machine that has certain RAID controller not supported by the default kernel. A patch for the kernel has to be downloaded and compiled as a module for this to work.
As this is going to be the booting volume, the…
Andor
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some questions about raid card
I have some questions about raid card.
Use LSI MegaRAID® SAS 9260-8i raid card as a example.
There is only two connection ports on the raid card, and they provide two cables that can connect 8 SAS/SATA storages.
The document say it can connect…
cpps
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Disk space not freed on ext3/raid1 after deleting
I have two 120 GB disks in a software raid1 array (i.e. mirrored), showing as /dev/md2. There's an ext3 filesystem on top of this, mounted at /.
# uname -a
Linux svnserv 2.6.26-2-amd64 #1 SMP Sun Jun 21 04:47:08 UTC 2009 x86_64 GNU/Linux
Recently,…
Piskvor left the building
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Adaptec 2610 RAID 1 - status 'Impacted'
I have created a second array using the 2nd and 3rd disks in the bay and ran through the process - its build but now showing a status of 'impacted'.
How can i get this to 'optimal'?
Thanks in advance
A
Adamski
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understanding RAID Level 5
Just wanted to clear my understanding on RAID 5,
suppose we have 100 GB of data to be stored in SAN in RAID level 5, does the actual storage means 100 *5= 500 GB ?, or it is the 100 GB only which is stored in different 5 dsiks?
please make me…
Rajeev
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RAID hard drive preventive replacement
From experience I learned that every hard drive will fail, it's just a matter of time.
I have learn my lesson the hard way and now I do backup.
When I bough new drive, I often segregate my drives list with the warranty period. Hard drive…
Hapkido
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Save and restore striped disk configuration on Windows 2008
I am running Windows 2008 Datacenter on Amazon EC2 and have created 4 EBS volumes that I am going to attach to the instance and create a single striped volume in Windows. My main concern is having to reconstruct that striped volume in the event of…
Joe Kuemerle
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Best practice for changing a dynamic (system) disc?
We've been using Windows Dynamic Disks for our customers system discs as a software RAID1 solution (i.e. we install the system on one disk, and mirror it after installation using Dynamic Disks). I've run into a problem that suggests that my…
Matthew Bloch
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Can I boot from a software RAID5 setup with linux?
I am planning the setup of a new NAS system, deciding if using Openfiler or something similar.
I've been checking some RAID cards, and thinking about hardware failure or substitution, and I have the doubt if I could make a system boot directly from…
Andor
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Rebuild Apple RAID set
We have a Mac Pro tower with an Apple RAID card in it using third party drives. When one drive failed, we replaced it and the RAID 5 set was nearly done rebuilding when the computer was rebooted. It did not come back up.
We are now booting up off…
Clinton Blackmore
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(Soft) RAID 6 on Ubuntu 7.10, should I migrate to 8.10?
My System is a Ubuntu 7.10. I have a (soft) RAID 6 with 5 disks (Samsung 500GB SATA disks), formatted with jfs. Should I upgrade to 8.10 or isn't it worth the hassle? What are the chances that something could happen to the RAID configuration? I…
Mauli
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Non-Apple methods to administer XRAID?
I've got an older Apple XRAID, and in order to administer it, I've had to rely on the Apple XRAID software utility that is native only on OSX. My only Mac laptop is going to be heading the way of the dinosaur soon, and I'd love to have another way…
Matt Simmons
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