10 More Discussions You Might Find Interesting
1. SCO
I need to be able to make a backup image of an OLD UNIX server HD where I can restore the complete HD from scratch if (when) the HD fails. This server runs the accounting system for a company.
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2. Debian
I am installing a Debian Server on a:
HP Proliant DL380 G4
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3. AIX
Hello,
I have a scsi pci x raid controller card on which I had created a disk array of 3 disks
when I type lspv ; I used to see 3 physical disks ( two local disks and one raid 5 disk )
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4. Linux
I just built a home computer with 3TB hard drives I wanted to set up in a RAID 5 and load Ubuntu server onto it.
The first thing I did was set up the drives in a RAID 5 using just the motherboard chipset software to do it, so a 'hardware' RAID basically.
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5. Hardware
Hi guys.
if we want to use SSD drives on a database server, can we use RAID 0 configuration because of their reliability? (3 Replies)
Discussion started by: majid.merkava
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6. Hardware
Hi All
I have a Sun T2000 server. Couple of years ago I had configured and mirrored the boot drive with an other drive using hardware RAID 1 using raidctl command.
Following is the hardware RAID output.
root@oracledatabaseserver / $ raidctl
RAID Volume RAID RAID Disk... (0 Replies)
Discussion started by: Tirmazi
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7. UNIX for Dummies Questions & Answers
I need to put together a RAID1 file server for use by Windoze systems. I've built zillions of windows systems from components. I was a HPUX SE for a long time at HP, but have been out of the game for years.
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8. Red Hat
I am planning on building a fedora box with raid controller (database server).
Is anybody done that ? also what kind of software do you need to backup and recover data. (1 Reply)
Discussion started by: amir07
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9. Filesystems, Disks and Memory
Hi,
I have a server that I am adding a RAID that we purchased to. The server works fine. It is running Fedora 7 and is a Dell Precision 690.
When the RAID is attached, it boots up and says the following:
Controller Bus #00, Device#1F, Function#02: 00 Ports
No device found
AHCI BIOS not... (0 Replies)
Discussion started by: user23
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10. Filesystems, Disks and Memory
Help, if possible.
In SCO Open Server with installation of two-channel RAID controller the following happens: on the channel 0 disk array is seen by an operational system, and on the channel 1 array is not seen (simultaneously). That is the operational system can not simultaneously use more than... (1 Reply)
Discussion started by: pko60
1 Replies
ATARAID(4) BSD Kernel Interfaces Manual ATARAID(4)
NAME
ataraid -- ATA software RAID support
SYNOPSIS
device ata
device ataraid
DESCRIPTION
The ataraid driver provides support for so-called software RAID (sometimes referred to as fake RAID or pseudo RAID).
When a controller that supports software RAID is instructed to create a RAID array, its BIOS writes data structures in a specific metadata
format to the disks. These data structures are picked up by the ataraid driver, so that FreeBSD can work with the array. The ataraid driver
has to understand the specific metadata format of a controller BIOS in order to support its RAID capabilities.
Read-only support for a metadata format means that FreeBSD can use the given RAID array for normal read/write operations. Creation and
rebuild of such arrays has to be done from the controller BIOS.
Read and write support for a metadata format means that FreeBSD can use the given RAID array for normal read/write operations. Additionally,
the atacontrol(8) utility can be used to create, rebuild, update and fail such RAID arrays.
The ataraid driver can read the following metadata formats:
o Adaptec HostRAID
o Highpoint V2 RocketRAID
o Highpoint V3 RocketRAID
o Intel MatrixRAID
o Integrated Technology Express (ITE)
o JMicron
o LSI Logic V2 MegaRAID
o LSI Logic V3 MegaRAID
o NVIDIA MediaShield
o Promise FastTrak
o Silicon Image Medley
o Silicon Integrated Systems (SiS)
o VIA Tech V-RAID
o FreeBSD PseudoRAID
The ataraid driver can write the following metadata formats:
o Highpoint V2 RocketRAID
o Intel MatrixRAID
o JMicron
o Promise FastTrak
o Silicon Integrated Systems (SiS)
o VIA Tech V-RAID
o FreeBSD PseudoRAID
It is also possible to use software RAID on controllers that do not have special software RAID capabilities. See atacontrol(8) for details.
FILES
/dev/ar* ATA RAID device nodes
SEE ALSO
ata(4), atacontrol(8)
CAVEATS
RAID5 is not supported at this time. Code exists, but it neither uses nor maintains parity information.
AUTHORS
The ataraid driver was written by Soren Schmidt <sos@FreeBSD.org>. This manual page was written by Christian Brueffer
<brueffer@FreeBSD.org>.
BSD
February 17, 2006 BSD
