RAID - Redundant Array of Independent Disks. A Storage technology to provide redundancy and performance, to reduce I/O bottlenecks involved in using multiple disks for large storage.

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Intel Z68 chipset raid5 disappeared

I have this motherboard, it's a gigabyte Intel Z68 chipset. I used the Intel chipset configuration (between BIOS and OS) to configure a 3 disk Raid5 array which I formatted as NTFS (Linux already has ...
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Pros and cons of software Parity-RAID (e.g. RAID5)

I was recently told about some problems concerning Parity-RAIDs without a non-volatile cache. More exspensive HW-controllers do have battery-powered caches to finish write-operations in case of power ...
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Choosing filesystem for a 16TB Raid

I'm just putting together a machine with eight 2TB disks. I will be using Raid 6 (12TB of usable capacity) on top of them, but I'm not sure whether I should make LVM on top of the RAID, or what ...
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In my Dell R310 server, i would like to install CentOS, but for RAID1 what special care i need?

I have my Dell R310 server to install CentOS latest version, it has 2 hot plug disk drive, about 250GB of each. - But i need to install RAID1 on it. My question is for RAID1 installation with ...
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Using device node of host bus adapter to send ioctl calls to monitor RAID status

I am interested in determining the status of a RAID array on my system (using Debian, and Intel ICH10R sata RAID controller = fakeRAID). What I have learned so far is that: I can use CSMI I/O ...
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Consumer Level software RAID5 and LVM

Hi I am going to build a 6 drive consumer level RAID 5 (10TB) with Ubuntu10.10 and using EXT4 as filesystem, and OS on another drive. Question: Should you use LVM on top of the RAID5 or should just ...
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mdadm Raid5 gives spares missing events

I succesfully builded up a raid5 array on debian testing (Wheezy). As the manpages and further tell, the array would be created as an out of sync array with just a new spare injected to be repaired. ...
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If there's no /dev/md* and not /proc/mdstat, is it safe to use a second disk as a second disk?

There's two HDs in this server. I don't see an md device (see title) or an mdstat file. So, can I be safe that the second disk is currently unused? Yes, I do want/need the second disk as space much ...
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3answers
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What would be a good choice for an elastic file system (for adding storage at a later date)?

I'm currently running a Debian 6.0 server with EXT3, but I'd like to move over to Arch. It's being used as a file server right now with a 1TB drive in it (of which 650GB in it is used). What I'd like ...
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Will the system make sure that mdadm is sync-ed before completing a reboot?

This is a follow up to my crazy mdadm problem. I'm trying to figure out what might have caused sda to get out of sync in the first place. The only thing I can think of is that I had just run a bunch ...
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installing grub 2 on mdadm, which device?

when installing grub(2) to mdadm devices are you supposed to install it to /dev/sdX or /dev/mdX?
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356 views

Drive was unable to assemble into the array

I ran mdadm -A /dev/md0 /dev/sda1 /dev/sdb1 Only /dev/sdb1 was loaded into the array though. I have a few more arrays on the same two drives too. Each time the partition on sda failed. dmesg told ...
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In place upgrade of a software raid 5 array

I run a software raid array for my backups, but my data has outgrown capacity. considering I have a full 2.4TB array with 5*600GB drives and also have 5*2TB drives I would like to swap in. What ...
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Is their a 'friction free' way to convert RAID1 to RAID5?

What's the best way to convert Linux software RAID 1 array to RAID 5? ( I have already bought the 3rd Hard Disc !)