Linux software RAID is usually managed through the mdadm tool. To see the status of the drives enter (replace /dev/md0 with the path to your actual RAID)
Good Morning all,
I just have a quick question, on some systems I am working with Software Raid Level 0 devices.
Yes, I know, this is not a good idea, but it was requested :-(
Now, due to a new requirement, I need to add a second internal disk to the system, but with adding the new disk,... (1 Reply)
Hello Lunix people,
I am looking for Raid software or solution besides Veritas. Veritas has some great software but are way too costly. Does anyone know of good raid software that but NOT Veritas. I need the funcations but not the cost. (7 Replies)
Hi all,
I m just trying using software RAID in RHEL 4, without problem , then i wanna simulate if disk 1 is fail (thereis an bootloader), i plug off my 1st disk. My problems is the second disk cannot boot? just stuck in grub, the computer is hang. Sorry for poor concept in RAID? I use a RAID 1.... (0 Replies)
Hi!
A couple of months ago a disk failed in our JBOD cabinett and I have finally got a new disk to replace it with. It was a RAID 0 so we have to create and configure the whole thing again. First we thought of RAID 1+0 but it seems you can't do this with LVM. If you read my last thread, you can... (0 Replies)
Hey,
I have worked with Linux for some time, but have not gotten into the specifics of hard drive tuning or software RAID. This is about to change. I have a Dell PowerEdge T105 at home and I am purchasing the following:
1GBx4 DDR2 ECC PC6400 RAM
Rosewill RSV-5 E-Sata 5 bay disk enclosure... (6 Replies)
hi friends,
I am having issues with adding a spare device to a failed array.
I have created RAID 1 with 3 partitions using mdadm command. Later I added a spare with
mdadm --add /dev/md0 /dev/sdb6
This works fine and when I check this with mdadm --detail command it just sits there as a spare... (7 Replies)
We have configured software based RAID5 with LVM on our RHEL5 servers. Please let us know if its good to configure software RAID on live environment servers. What can be the disadvantages of software RAID against hardware RAID (4 Replies)
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
LEARN ABOUT NETBSD
aac
AAC(4) BSD Kernel Interfaces Manual AAC(4)NAME
aac -- Adaptec AdvancedRAID Controller driver
SYNOPSIS
aac* at pci? dev ? function ?
ld* at aac? unit ?
DESCRIPTION
The aac driver provides support for the Adaptec AAC family of SCSI and SATA RAID controllers. These controllers support RAID 0, 1, 5, 10,
and volume sets. They have four channels in the add-in version or 1-2 channels in the motherboard integrated version, and are most often
found rebadged by Dell, Hewlett-Packard or IBM. Supported controllers include:
o Adaptec AAC-364
o Adaptec SCSI RAID 2120S
o Adaptec SCSI RAID 2200S
o Adaptec SATA RAID 2410SA
o Adaptec SATA RAID 3405
o Adaptec SCSI RAID 5400S
o Dell PERC 2/Si
o Dell PERC 2/QC
o Dell PERC 3/Di
o Dell PERC 3/Si
o Dell PERC 320/DC
o Dell CERC SATA RAID 1.5/6ch
o HP NetRAID 4M
o HP ML110 G2 (Adaptec SATA RAID 2610SA)
o IBM ServeRAID 8k
Access to RAID containers is available via the ld device driver. Individual drives cannot be accessed unless they are part of a container or
volume set, and non-fixed disks cannot be accessed. Containers can be configured by using the on-board BIOS utility of the card.
DIAGNOSTICS
The adapter can send status and alert messages asynchronously to the driver. These messages are printed on the system console.
SEE ALSO intro(4), ld(4)HISTORY
The aac driver first appeared in NetBSD 1.6, and was based on the FreeBSD driver of the same name.
BUGS
This driver is not compatible with controllers that have version 1.x firmware. The firmware version is the same as the kernel version
printed in the BIOS POST and driver attach messages.
BSD February 19, 2011 BSD