08-25-2009
In short: don't. RAID 0 gives you no redundancy or fault tolerance. Go with RAID 5 (or maybe RAID 1).
As for the stripe size: Dell
suggests 128KB stripes.
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi all
I am working on MSR110 ...Can anyone plz tell me how to use the configuration commands with magnetic reader???. Please help me out as i have to develop API in C on linux platform.MSR110 is not responding to the configuration commands.
Please help...
Regards
Mahima (0 Replies)
Discussion started by: mahima_er
0 Replies
2. UNIX for Advanced & Expert Users
Hi,
Is there are any special preocedure for extending veritas mirror-stripe volume? In my case , volume lay out looks as below
v test - ENABLED ACTIVE 419430400 SELECT - fsgen
pl test-01 test ENABLED ACTIVE 419454720 STRIPE 3/128 RW
sd... (0 Replies)
Discussion started by: 2k7.vipin
0 Replies
3. AIX
Hello all.
I have a volume group with 8 PV's, and a logical volume striped across these 8 volumes.
However, an lslv is showing:
STRIPE WIDTH: 9
STRIPE SIZE: 64k
There's really only eight disks, so how can the stripe width be 9?
ODM also showed this:
# odmget CuAt |... (4 Replies)
Discussion started by: Scott
4 Replies
4. Emergency UNIX and Linux Support
Hi all
I have just had SAN allocate 4*30 GB of disks and had created a new scalable vg and assigned the disks to it:
I used smitty to create vg and the command is: x -y'vgdata1' hdisk82 hdisk83 hdisk84 hdisk85
root@aadcxs08 / : lsvg vgdata1
VOLUME GROUP: vgdata1 VG... (4 Replies)
Discussion started by: hedkandi
4 Replies
5. 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 )
suddenly the raid 5 disk array disappeared ; so the hardware engineer thought the problem was with SCSI... (0 Replies)
Discussion started by: filosophizer
0 Replies
6. Solaris
Server Model: T5120 with 146G x4 disks.
OS: Solaris 10 - installed on c1t0d0.
Plan to use software raid (veritas volume mgr) on c1t2d0 disk.
After format and label the disk, still not able to detect using vxdiskadm.
Question:
Should I remove the hardware raid on c1t2d0 first?
My... (4 Replies)
Discussion started by: KhawHL
4 Replies
7. Solaris
Hello Admins..
I am going through solaris volume manager guide for RAID-0 concatenation and stripes, I do not understand the concept of stripe from following example of concatenation.
There is an eample for concatenation:
# metainit d25 1 1 c0t1d0s2
d25: Concat/Stripe is setup
the... (5 Replies)
Discussion started by: snchaudhari2
5 Replies
8. Red Hat
Hello,
I want to delete a RAID configuration an old server has.
Since i haven't the chance to work with the specific raid controller in the past can you please help me how to perform the configuraiton?
I downloaded IBM ServeRAID Support CD but i wasn't able to configure the video card so i... (0 Replies)
Discussion started by: @dagio
0 Replies
9. Shell Programming and Scripting
Say i have:
g_gateway domain="abc.com" to="123.123.123.123" relay="false"
how do i use awk or sed or any method to get the result below:
abc.com 123.123.123.123 (3 Replies)
Discussion started by: timmywong
3 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