01-22-2014
Q: how do you manage to do RAID with only 2 disks?
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
EMC is asking what flare version servers are at. Does HPUX use flare and how can you find it? :confused: (0 Replies)
Discussion started by: rfmurphy_6
0 Replies
2. UNIX for Dummies Questions & Answers
Hi everyone, I am sort of new to shell scripting,
I have a bunch of files that begin with 'blah' and I want to rename those files with something different (renamedFile1, renamedFile2, renamedFileN). I don't want to go through each file and rename them with the mv command. Could I just use a for... (4 Replies)
Discussion started by: kcor
4 Replies
3. UNIX for Dummies Questions & Answers
I want to move and compress a big export file.
Like mv file_exp /filesystem/file_exp |compress
The file system is too small to compress and move with 2 steps.
What is the best command for me. I'm running solaris.
:confused: (1 Reply)
Discussion started by: simquest
1 Replies
4. Shell Programming and Scripting
Hi,
We use an application that is dumping logs to a file on disk. However, this is dumping very verbosely and there is no method of turning down the logging level. We need to remove certain contents from these before they are commited to disk.
Has anybody got any ideas how I can do this... (3 Replies)
Discussion started by: harperonline
3 Replies
5. Solaris
Wats would be the best way to disable link based IPMP on the fly without loosing network connectivity ? (6 Replies)
Discussion started by: fugitive
6 Replies
6. Shell Programming and Scripting
Hi,
I am creating files in a folder on the fly with arbritrary names but same extension (say, ".img"). How can I read each filename from the folder through a script.
regards
Angshuman (2 Replies)
Discussion started by: angshuman_ag
2 Replies
7. What is on Your Mind?
This is great!
Lqh8e2KYIrU (8 Replies)
Discussion started by: Neo
8 Replies
8. HP-UX
Hi,
I have an old HPUX 10.20 server running Informix 7.23
I need to dump the database to get it off that hardware before it dies.
Unfortunately there is insufficient local diskspace to do so.
I have set up a linux box with sufficient disk onto which I can export the database.
Having... (1 Reply)
Discussion started by: fella
1 Replies
9. OS X (Apple)
Hi all...
Had an idea tonight which could really enhance shell scripting for me.
Yes I am aware there could be difficulties but......
Creating a C script inside the shell script to do a task, (a simple text print to stdout in
this example), compiling it on the fly, making sure it is... (4 Replies)
Discussion started by: wisecracker
4 Replies
10. Shell Programming and Scripting
Hi all,
I am calling a zsh script from batch file .
This zsh just removes the trigger file in a particular directory.File name is passed as a parameter from the batch file Problem is this batch is called in multiple other batch files and sometimes system says file cant be used as it is used... (4 Replies)
Discussion started by: Hypesslearner
4 Replies
LEARN ABOUT CENTOS
ataraid
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