09-11-2008
By using SVM (or zfs) to create a RAID volume you will be using software RAID, so no need for fancy hardware. If you use hardware raid then you don't need SVM or anything like it, the OS just sees it as "a disk" and shouldn't care what kind of mirroring or data protection is going on.
By definition you will be using extra space if you use RAID5, but that is the price you pay for having your data protected.
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1. Solaris
I have this setup, i can only find docs to unmirror a raid 1 set, how do you get rid of a raid 5 set? the same way? metadetach and metaclear?
d8: RAID
State: Okay
Interlace: 32 blocks
Size: 142245693 blocks (67 GB)
Original device:
Size: 142247872 blocks (67 GB)
... (2 Replies)
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recently we have purchased hp proliant ml350 g5 server and configured raid 5 with hp smartarray p200i sas controller.but i could not found any sas raid controller hp smartarry p200i driver for sco unix 5.0.7 :(.i searched on hp support site,but no use.any one can help. (3 Replies)
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Hello experts..
How can i grow Raid 5 volume in SVM?
Thanks in advance.. (2 Replies)
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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)
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5. Hardware
Hi,
We have a Sunfire 4150 with On-Board Internal Raid Controller connected to 4 X 146 GB SAS disks.
This also has an External Raid Controller (Storagetek Eight-Port, External HBA
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... (1 Reply)
Discussion started by: ranjansukumar
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6. Solaris
Hi All!
I'm running Solaris 10 and SPARC and using
Let me give a bit of background before asking my question:
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Discussion started by: Keepcase
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7. 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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Hello folks,
Could someone tell me why I unable to create pdisks for a RAID Array
# lscfg | grep scsi
+ sisscsia0 U787A.001.DPM0707-P1 PCI-X Dual Channel Ultra320 SCSI Adapter
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9. 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?
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Hello,
I am using Red Hat 2.6.23.1 with RAID 6 controller (card).
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LEARN ABOUT NETBSD
arcmsr
ARCMSR(4) BSD Kernel Interfaces Manual ARCMSR(4)
NAME
arcmsr -- Areca Technology Corporation SATA/SAS RAID controller
SYNOPSIS
arcmsr* at pci? dev ? function ?
DESCRIPTION
The arcmsr driver provides support for the PCI-X and PCI Express RAID controllers from Areca Technology Corporation:
- ARC-1110 PCI-X 4 Port SATA RAID Controller
- ARC-1110ML PCI-X 4 Port SATA RAID Controller
- ARC-1120 PCI-X 8 Port SATA RAID Controller
- ARC-1120ML PCI-X 8 Port SATA RAID Controller
- ARC-1130 PCI-X 12 Port SATA RAID Controller
- ARC-1130ML PCI-X 12 Port SATA RAID Controller
- ARC-1160 PCI-X 16 Port SATA RAID Controller
- ARC-1160ML PCI-X 16 Port SATA RAID Controller
- ARC-1170 PCI-X 24 Port SATA RAID Controller
- ARC-1200 Rev A PCI Express 2 Port SATA RAID Controller
- ARC-1202 PCI Express 2 Port SATA RAID Controller
- ARC-1210 PCI Express 4 Port SATA RAID Controller
- ARC-1220 PCI Express 8 Port SATA RAID Controller
- ARC-1230 PCI Express 12 Port SATA RAID Controller
- ARC-1230ML PCI Express 12 Port SATA RAID Controller
- ARC-1231ML PCI Express 12 Port SATA RAID Controller
- ARC-1260 PCI Express 16 Port SATA RAID Controller
- ARC-1260ML PCI Express 16 Port SATA RAID Controller
- ARC-1261ML PCI Express 16 Port SATA RAID Controller
- ARC-1280 PCI Express 24 Port SATA RAID Controller
- ARC-1280ML PCI Express 24 Port SATA RAID Controller
- ARC-1680 PCI Express 8 Port SAS RAID Controller
- ARC-1680LP PCI Express 8 Port SAS RAID Controller
- ARC-1680i PCI Express 8 Port SAS RAID Controller
- ARC-1680x PCI Express 8 Port SAS RAID Controller
- ARC-1681 PCI-X 8 Port SAS RAID Controller
These controllers support RAID levels 0, 1, 1E, 3, 5, 6, and JBOD using either SAS or SATA II drives.
arcmsr supports management and monitoring of the controller through the bioctl(8) and envstat(8) commands.
Please note, however, that to use some features that require special privileges, such as creating/removing hot-spares, pass-through disks or
RAID volumes will require to have the password disabled in the firmware; otherwise a Permission denied error will be reported by bioctl(8).
When a RAID 1 or 1+0 volume is created, either through the bioctl(8) command or controller's firmware, the volume won't be accessible until
the initialization is done. A way to get access to the sd(4) device that corresponds to that volume without rebooting, is to issue the fol-
lowing command (once the initialization is finished):
$ scsictl scsibus0 scan any any
The arcmsr driver will also report to the kernel log buffer any error that might appear when handling firmware commands, such as used by the
bioctl(8) command.
EVENTS
The arcmsr driver is able to send events to powerd(8) if a volume or any drive connected to the volume is not online. The state-changed
event will be sent to the /etc/powerd/scripts/sensor_drive script when such condition happens.
SEE ALSO
intro(4), pci(4), scsi(4), sd(4), bioctl(8), envstat(8), powerd(8), scsictl(8)
HISTORY
The arcmsr driver first appeared in NetBSD 5.0.
AUTHORS
The arcmsr driver was originally written for OpenBSD by David Gwynne. It was ported to NetBSD and extended by Juan Romero Pardines.
BSD
March 3, 2008 BSD