This Sun BluePrints document describes using RAID 6 (a RAID algorithm that is gaining popularity and can be cheaper to implement than RAID 1+0 and more reliable than RAID 5) on the Sun StorageTek 6140 array.
Hi,
I have a question about Sun StorageTek Common Array Manager (CAM): What is the concept of 'host'? Is it the hostname of the server that has access to the managed array? If so, can I use its IP instead of its hostname?
I've found a 'host' under CAM called XYZ (See below). In our... (7 Replies)
In Sun manuals, I didn't find how to backup Sun StorageTek Common Array Manager's configuration. Is there a way to do it like backing up Brocade switch configuration? CAM is under Solaris 10.
Thank you in advance! (0 Replies)
Hi!
I have Sun StorageTek 2540 FC array and CAM works very slowly - I can wait for software response even more than 2 minutes... I run this software on Windows machine with Firefox Web Browser but speed is terrible... How can I make it works at least a little bit faster?.. (2 Replies)
Hello,
Wondering if anyone can help me with mounting a file share from my Sun T2000 server running Solaris 10 to my connected 2530 disk array?
I believe I've connected the disk array correctly and I have created a volume on the array using the filesystem (Sun_SAM-FS, RAID-5).
The T2000... (15 Replies)
Hi,
We have 12x1TB SATA disks in our array and I need to create 10TB volume. I defined new storage profile on array and when I tried to add volume, I faced with ~2TB limit for new volumes. I didn't find how to set another limit on my storage profile. Is there is a way to configure one large... (3 Replies)
We're moving our production 3510FC to development, so we need to replace the production 3510FC. The 6140 is nice, but pricey.
Here's the question: Would two 2540's (RAID 10) be 'faster' than one 3510? (RAID 10) and faster than one 6140 (RAID 10)?
One StoregeTek 6140 (16x72GB 15k rpm fc-al... (12 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