Achieve RAID 0+1 on 6130 Array

Documentation for the 6130 indicates support for RAID 0,1,3,5 & 0+1. However when creating a new storage profile in the console, the options listed are only 0,1,3 & 5. In order to achieve 0+1 should I create 2 Raid 0 pools and then mirror in VxVM? Am I missing something?
Using:
Java Web Console Version 2.2.4
SUNWstadm 2.4.50.009, SUNWstade 2.4.55.005 on Solaris 9
Array Support Library for VERITAS Volume Manager
VxVM 4.0
Thanks for your help!

Spoke w/ tech support today. Turns out the RAID1 configuration on the 6130 is actually RAID 1+0. RAID 0+1 is not supported natively, and would require a software solution such as VxVM.

Similar Messages

OT (ish): ATTO raid card and Sonnet drive array won't mount

Hi,
It's slightly off topic I think, but the title says it all. My ATTO configuration tool says all is ok and all 8 drives are fine, but Finder doesn't show the drive array (8xdrives as RAID 5). ATTO support have told me how to manually mount the drives via a command line interface, but I'd really like to just turn the computer on and have them there on the desktop(!). While support is thinking about it, I was wondering if anyone had had anything similar and if they felt it was the OS as opposed to the PCI card? I'm running 10.4.11. Other drives (SATA and FW) mount fine.....
Cheers!
Todd.

Complete re-install worked

Raid Admin 1.5 - Recognize Array button not active

Hi all,
just updated to RaidAdmin 1.5, updated firmware on both controllers to 1.5 version.
I have 6 disks on which should be my lost array. Suddenly 'Recognize Array' button in utilities is not active.
Any idea?
Leos.

ok. The whole story:
Few month ago, I had RAID 3 schema on 6 disks. I did firmware update on my XRaid. This update WAS SUCCESSFUL. After XRaid restart, I lost my array. I didn't have backup. After unsuccessful local Apple support, I tried 3rd party companies to reascue my data. Noone helped me. I managed help from Apple in US, I sent my disks to them (quite expencive, I am from Czech Republic.). They recovered raid set on my disks to RAID 3 schema on 5 disks only - don't understand this. So I called them back a and I sent disks again, with detailed desription how it must be. Thay sayed OK and sent me back 6 disks, with no raid set schema - 6 unassigned to any array. And as a bonus, one of them was failed. So, now I have 6 disks, Apple claims, that raid schema is on disks (but i cannot see it on my raid - I realy tried everything - swapping possitions, controllers, cables .....). So when Raid Admin 1.5 brings this new function - recognize array, I started thinkink, that I have one more chance to recover my data back. But situation is as I described in first topic....

875P and Raid-0 Boot Failure - Rebuild Array?

Hi,
I was running combofix in safe mode when my computer suddenly blanked out and restarted. The 2 Western Digital WD1600JDs are set on the Promise PDC20378 controller and set for Raid-0 Striping. No noises or different temperatures seen, diagnostics recently checked out drives ok. One drive shows FREE the other assigned to ARRAY1. During POST it says Boot Failure. Can this be repaired? Is there a way to test if the Promise controller failed instead?
I have since installed a new WD3200AAKS on the ICH5 as a single drive with a new install of WinXP Pro. Curiously, I could not access bios for ICH5 with Ctrl-I or any other means. Maybe it was looking for 2 drives. I MUST restore or recover data from drives. Freeware recovery data has not been able to detect Promise drives.
What do fellas suggest?
Thanks!
James

My suspicion is that the drives are ok, that it's a software issue. I've just read about several people deleting the array but not destroying any data and then create a new array identical to the old one without initializing the discs. Have not seen it done with an MSI board, don't know if it would matter.

Xserve RAID lost RAID 5 array on right/bottom controller

I cleanly shut down an Xserve G5 with an Xserve RAID attached and then powered off the Xserve RAID this morning. I replaced a failing memory module in the Xserve and moved the rack 6". I then powered on the Xserve RAID, waited for a couple minutes until it was fully booted, and then booted the Xserve. When it came up, my RAID 50 volume failed to mount. Upon further investigation, it appears that the RAID 5 array on the right hand disks is "gone". In RAID Admin (Disks and Drives tab), the left side array is visible, but all disks on the right side list status as "OK" and Type: as "Spare".
Configuration: Xserve RAID with 14 250 GB disks. Each side was configured with 6 disks in a RAID 5 array and one spare. These were striped using Software RAID on the Xserve into RAID 50 and mounted as a single volume. The RAID firmware is currently 1.5 and the Xserve is running OS X Server 10.4.3.
To summarize today's activities: under Apple's guidance (as this entire system is covered under a Premium Support contract), I swapped the (bottom) controller for the right side, updated firmware (from v1.3/1.20a to 1.5/1.50), multiple resets of both controllers, repeated forced firmware updates, etc.
Also, I swapped the left set of disks for the right set, and the array from the left set now shows up on the right side, and the missing array from the right is still missing with the disks on the left side. I replaced the disks to their original positions with the same results.
RAID Admin's Utility "Recognize Array" will not perform any operations on the rigth side disks and Apple tells me that there's nothing further that I can do with it.
None of this has solved the problem or substantially changed the issue, and the disks on the right side are still missing their associated array. Apple is unable/unwilling to offer any further help except to refer me to 3rd party data recovery services.
Does anyone have any suggestion at all that might possibly recover the missing array? Is anyone aware of any tools that I might use to recreate the RAID 5 array on the right controller? I was hoping that there might exist some low-level tools with which the disks could be recreated into an array by hand? Are there any commercial products that would work on this? Any other ideas?
Many thanks for any suggestions.
- Martin
Xserve RAID (14 250GB disks) on Xserve G5 Mac OS X (10.4.3)

Not sure why you swapped the controllers back and forth
William, I don't think I was clear on this. I swapped the controller with a new controller that I had in a spare parts kit. This was at Apple's request.
really, RAID is not a backup...
I'm well aware, but despite my incessant warnings, users will become lulled in to a false sense of security when something "just works" for a very long time. This array wasn't intended to store valuable data that couldn't be lost, but...
It may be possible for Apple to re-create the RAID set, did you ask AppleCare about the possibility?
Apple has told me more than once that there's nothing else that they can do for me...and yet I keep calling back.
I was surprised that this array was lost when there were absolutely no prior signs of a problem and the system was merely shutdown and restarted cleanly. I'm more surprised and quite disappointed to learn that Apple will do nothing else for me (under a Premium Support contract) to attempt to repair a damaged array. When I asked questions about where the RAID information is stored, I received the answers: "I can't tell you that" and "Apple doesn't release that information". I did not get the feeling that they were working with me, but rather holding my hand while they walked me through published documentation.
I expected that there would be utilities (analagous to filesystem repair utilities) such as RAID Admin's "Recognize Array" that could help repair and recover damaged array data. I think that the lesson that I've leanred today is that I was naive to have expected such a thing without actually having investigated it ahead of time.
Anyway, thanks for your input, William.

Unknown Raid 5 Array after Raid controller replaced

Hello,
I had a raid controller fail during the week, and after shutting the xraid down and installing the new controller, all the drives in the array are now amber.
In Raid Admin 1.5 the array does not show up, only all 6 member drives with an amber warning and 'Type: Unknown Array'.
I used the 'Recognize Array' utility to try and fix this, however whilst each drive shows as being recognized as being part of a Raid 5 set, it will not recreate it.
Am I completely screwed? or is there some other way to get this to repair/recognize?
Any tips would be greatly appreciated.
Thanks
Mark

Due to time restrictions on getting the xraid back online, had to recreate the raid and restore data from backup.
No fix found.

VolumeWorks CANNOT expand RocketRaid 2220 RAID 5 array ! ! !

Well, I recently OCE/OLRM my RAID-0 1 TB array into a RAID-5 1.5 TB array.
I noticed after that time that OS X still reported the array as the same size.
I thought to myself, 'self ..... ***?'
So I went into disk utility and found that I had to ADD another partiton to account for the new space.
I googled.
Found a program called 'VolumeWorks'
Short story, VolumeWorks cannot expand the array partiton to 1.5 TB
Any ideas on how to expand the partition to ~1.5 TB (it's about 1.39675 TiB)?
I e-mailed them but expect a ignorant reply.
I will post on this and see if I can get a refund.
For now DO NOT use this program.
It just plain doesn't work.
PERIOD!

sadly, volumeworks completely erased my array of almost 931 GB
NEVER use this software period.

Oracle Ent. Linux drivers for HP Smart Array B110i Sata Raid Controller

Trying to install Oracle Ent. Linux (OEL) release 4 update 8 on HP DL 180 G6 server. Where we can find OEL drivers for the sata raid controller ?
(HP Smart Array B110i Sata Raid Controller)
Thanks in advance.

The HP support side shows a Linux certification matrix at: http://h18000.www1.hp.com/products/servers/linux/hplinuxcert.html
From there you can also download the necessary drivers and instructions or use HP smartstart CD which prepares the system for the OS you need to install. Oracle Enterprise Linux is binary compatible with RHEL. You will need to click on "Archive" to see support for Enterprise Linux version 4 and older.
Also interesting should be Red Hat Enterprise Linux Technical Exceptions at
http://h18000.www1.hp.com/products/servers/linux/supportmatrix/rhel/exceptions/rhel-exceptions.html

Creating array reboots xserve raid?

when using RAID admin to create an array, the application tells me it will reboot the xserve raid. Does it reboot the entire system or just the controller that has the newly created array?

Just the controller containing the RAID set -- any arrays on the other "half" of the Xserve RAID will not be rebooted.
Note it also only does this if you create the first array, or delete the last array, on a RAID controller. So for example, if you have 2 RAID sets on a RAID controller, and delete one, the controller won't reboot. Only if you delete both off them.
If you only have one RAID set per side of the RAID, this of course isn't really applicable.

Xserve-RAID array intialising

An established array on my RAID has sudddenly begun the intilising process. Is this normal? Why would it be doing this now - it was initialised when I set it up so why now?
Also - why does the initialising proces take so incredibly long?!

Initializing? that sounds like a problem. Unless you mean either scrubbing/conditioning or rebuilding.
The former can be initiated via RAID Admin, and makes the XServe RAID check every block on the disk.
The latter may happen if a disk fails and the data needs to be replicated/rebuilt on a spare drive.
Initializing, as its name implies, involves setting up an new array. This doesn't usually (ever?) happen on its own, but only at the behest of someone using RAID Admin to manipulate the array.
As for the duration - if you're using RAID 5, creating the array performs a scrub of each disk to verify its integrity, as well as creating the initial parity data. If you enable the background option, the array is available for use immediately, even while the scrub is progressing.

P965 Platinum SATA RAID drivers to slipstream

Hey guys,
Once in a while I slipstream SATA and SATA RAID drivers into my WinXP Pro setup cd, so I will not need a floppy on any system. My setup cd now contains drivers for VIA VT8237, nForce3, Promise 20378 and Promise 20579 controllers. I would like to add Intel ICH8R drivers...
I know how to do it, that's not the issue. But on MSI's download section for my P965 Platinum I can find two drivers:
Which one is to be used to setup RAID arrays on the ICH8R? Both contain contents for a floppy, both folders and files look the same. It's just that they differ in size, so I'm not sure which one I need. Do I need to slipstream both drivers to setup a RAID 0, 1 or 5 array?
Thnx in advance...

Quote from: Quadrifoglio Verde on 03-March-07, 23:47:11
Alright, thanks. Why the first one and not the second one? Is there a difference between the two? I can not slipstream both, as they are both named "iastor.sys"...
"I can not slipstream both, as they are both named "iastor.sys"..."
you no need to put them both, only one of them.
they are the same version, all files match except iastor.sys size (in same time both iastor.sys are "same version" too.. 6.0.0.1022)
"Why the first one and not the second one?"
just guess, because MSI put them as ICH8R SATA RAID Driver as primary. if you have any problems you can try drivers from second achieve.

RAID for Consumer PCs

If you have an interest in using RAID, then the MS Word document attached to this post may be useful information. Scroll all the way to the bottom for the attachment.
RAID for Consumer PCs
Table of Contents
RAID
RAID 0
RAID 1
RAID 5
RAID 10 (0+1)
INTEL Controller Support for Different RAID Configurations
Background Information for Creating a RAID configuration.
Considerations:
Performance comparisons
Creating a RAID 0 Array
Creating a RAID 1 Array
Creating a RAID 5 Array
Creating a RAID 10 (0+1) Array
Conversion from RAID 0 to RAID 5
RAID 0 to RAID 5 Observations
Other RAID Migrations
*************DISCLAIMER***********
RAID
RAID is an acronym for Redundant Array of Inexpensive Disks and also commonly called Redundant Array of Independent Disks. A RAID array is created when one or more hard disks or one or more solid state disks (SSD) are combined to form a logical volume using one of several different configurations. Consumer level PCs typically use RAID 0, RAID 1, RAID 5 and occasionally RAID 10 (0+1). The RAID configuration choice is dependent on the requirements for redundancy, speed and capacity. The choice of a RAID configuration will be a compromise between speed, redundancy, capacity and cost. The different RAID configuration options can be restricted by hardware limitations.
RAID 0
A RAID 0 volume is created when 2 hard disks are used and then data is spanned or striped across the different hard disks. The process of spanning data across different hard disks is also called scatter loading. By spreading data across multiple hard disks, a significant performance improvement can be gained. However, should one of the hard disks fail, then the entire RAID 0 configuration becomes unusable. A RAID 0 volume combines the capacity of the hard drives being used in the configuration.
RAID 1
A RAID 1 configuration is created when 2 hard disks are used and then data on hard drive 1 is replicated to hard drive 2. The process is also called data mirroring. This configuration provides for redundancy in the event of a single hard drive failure but at the expensive of a degradation to write performance as data has to be written to multiple hard drives. Since the data is being replicated between two volumes the overall capacity is limited to that of one hard drive.
RAID 5
A RAID 5 configuration is similar to a RAID 0 array except RAID 5 deploys distributed parity also referred to as checksum data. Blocks of data are stripped across three or more hard drives and each hard drive contains block level recreation data (parity). In the event of a hard drive failure, parity will allow for the data to be accessed through a dynamic data creation process. The downside to the dynamic data creation process is a reduction in performance until the failing hard drive can be replaced. RAID 5 performs best for supporting read accesses as write operations will be slower while the parity blocks are being updated. Parity data does consume disk space. A three hard drive RAID 5 array will have about the same total data capacity as a two hard drive RAID 0 array.
RAID 10 (0+1)
A RAID 10 configuration also called RAID 0+1 can be implemented in two different methods depending on the hardware being used. The below left configuration is a striped RAID 1 array being replicated and the below right configuration is a RAID 0 array being replicated. A RAID 10 configuration can provide a RAID 0 performance level even with the loss of one hard disk. The downside to RAID 10 is the reduced configuration capacity.
INTEL Controller Support for Different RAID Configurations.
The RAID configurations used in this document are based on the INTEL SATA controller.
See the below table.
NOTE: Even though your system board may have the appropriate Intel controller,
not all system boards will provide RAID functionality.
Background Information for Creating a RAID configuration.
You can create a RAID configuration provided that:
The PC cabinet can accommodate additional hard drive(s) if needed.
The system board has the necessary open SATA port(s) if needed.
A SATA controller that can support the desired RAID configuration.
You can determine the status of your RAID configuration by using the Intel Rapid Storage Technology (IRST) software. If you don’t have this software on your PC then you can download IRST from the Intel web site. I recommend that you use the latest version available from Intel. Background information can be obtained from the IRST User Guide. When you launch IRST, the help topics are an excellent source of information. You can access IRST by going into the Control Panel and select Intel Rapid Storage Technology. You can also access IRST from the lower right Task Bar location. IRST should resemble a hard drive icon and normally it has a green check mark. By default IRST is set as delayed startup so don’t expect to see it active right after boot up. The Intel images being used in this document are from IRST version 11.1.0.1006.
If the SATA controller in your PC is not set to RAID then read this Microsoft article if you are running VISTA or Windows 7. You need to run the MrFixIT script before you reboot your PC in the bios and make the SATA controller mode change to RAID. The script will then allow Windows to choose the correct driver when you reboot your PC. If you plan on using a boot drive image restore then be sure to run the script just prior to making taking your image backup. That way your backup image is set to allow Windows to choose the correct SATA driver.
Before creating any RAID configuration, always make backups of your data and image the boot hard disk to external media such as an USB drive. Additionally, be sure that your imaging product boot disk is functional, particularly if the PC’s boot hard disk is part of the RAID configuration. Its best to use a commercial hard disk imaging product as support and functionality is generally better than the “freebie” software.
Be sure that your PC is running the latest available BIOS. BIOS updates are used to update the Intel ROM firmware. Additionally, check for hard drive and SSD firmware updates.
Summary of preparation steps in priority order:
Backup your data.
Test out your recovery and restore procedures.
Update the following: BIOS, hard drive firmware, SSD firmware
Update IRST
Execute the Microsoft MrFixIt if your PC is not set to RAID mode in the bios.
Create an image of your boot hard drive.
Considerations:
After replacing a failed hard drive, don’t expect the rebuild process to be fast. All of the data that existed on the failed hard drive must be either regenerated using parity data or replicated to the new hard drive.
I recommend that you use an uninterruptable power supply (UPS) when using RAID 5. Cached write data needs to be written to hard drive in the event of a power failure to avoid the loss of data. You might want to consider disabling write back cache if you are not using an UPS. There is a performance reduction by doing so at the expense of improving data integrity.
If you need a RAID array over 2 TB then your PC needs: UEFI bios, 64 bit operating system, GPT formated hard drives. Review this Microsoft article on Windows and GPT FAQs.
Since a MBR formated array will limit the useable space to 2 TB it’s therefore best to use hard drives that are 1 TB or less for RAID 0, 5 and 10.
Consider the data growth rate and the size of the array. The Intel controller will limit the number of hard drives. The size of the PC cabinet and available system board SATA ports will also be growth constraints. It’s not uncommon for a business to experience an annual data growth rate of 20 percent.
If you need a RAID solution beyond the typical consumer level RAID configurations, then you should review the RAID options available from HP.
RAID technology in not infalible so you need to consider backups. A voltage spike inside your PC could render the RAID unusable and unrecoverable. Corrupted data or a virus are other reasons for keeping backups. An external USB connected hard drive might be sufficient for backups.
Throughly test your backup and restore software. Always keep more than one backup copy of your data.
Performance comparisons:
All of the hard drives benchmarked are Hitachi 1.5 TB SATA III hard drives connected as SATA II devices. HD Tune was used to benchmark the seniaros using default settings.
Configuration
Average MB/s
Maximum MB/s
Single hard drive
113
152
RAID 0
222
289
RAID 1
104
142
RAID 5
221
288
RAID 10 (0+1)
220
274
Creating a RAID 0 Array.
If you are configuring the Windows boot drive into a RAID 0 array, then you need to use the Intel option ROM method for creating the array. Tapping Cntl-i at boot up will get you into the Intel option ROM firmware setup utility. Once the array has been created then boot up your image recovery disk and load the array from your image backup.
If you are creating a RAID 0 data only array then you can use the IRST when running Windows to create the array. You can also use the Intel option ROM firmware setup utility. Even though this HP VISTA RAID setup article is dated, it does have some excellent information.
Launch IRST.
You can observe in the above image the status of the hard drives attached to the Intel SATA controller. Now click on Create. Select Optimized Disk (RAID 0) then click on Next.
Configure the RAID 0 array by selecting two hard drives of the same size and click on Next.
Next click on Create Volume.
A warning window will appear. Click on OK.
The new RAID volume is now created. However, you now need to use Windows Disk Management to ready the volume for use.
Creating a RAID 1 Array.
If you are configuring the Windows boot drive into a RAID 1 array, then you need to use the Intel option ROM method for creating the array. Tapping Cntl-i at boot up will get you into the Intel option ROM firmware setup utility. Once the array has been created then boot up your image recovery disk and load the array from your image backup.
If you are creating a RAID 1 data only array then you can use the IRST when running Windows to create the array. You can also use the Intel option ROM firmware setup utility. Even though this HP VISTA RAID setup article is dated, it does have some excellent information.
Launch IRST.
You can observe the above status of the hard drives attached to the Intel SATA controller. Now click on Create.
Select Real-time data protection (RAID 1) and click NEXT.
Configure the RAID 1 array by selecting two hard drives of the same size and click on Next.
Next click on Create Volume.
The new RAID volume is now created. However, you now need to use Windows Disk Management to ready the volume for use.
Creating a RAID 5 Array.
A RAID 5 array will require three to four hard drives. While it is possible to convert a RAID 0 to a RAID 5 array, I recommended that you consider building the RAID 5 array from scratch rather than use a conversion method.
If you are configuring the Windows boot drive into the RAID 5 array, then you need to use the Intel option ROM method for creating the array. Tapping Cntl-i at boot up will get you into the Intel option ROM firmware setup utility. Once the array has been created then boot up your image recovery disk and load the array from your image backup.
If you are creating a RAID 5 data only array then you can use the IRST when running Windows to create the array. You can also use the Intel option ROM firmware setup utility. Even though this HP VISTA RAID setup article is dated, it does have some excellent information.
The following procedure will build the RAID 5 array with three hard drives using IRST.
Launch IRST.
During this create process, I will be using the last three hard drives
listed in the above image under Storage System View. Now click Create.
Select Efficient data hosting and protection (RAID 5) and click
On Next.
Select the three hard drives for RAID 5 and click on Next.
Review the volume creation selections then click on Create Volume.
Review the final warning then click on OK.
Now click on OK and review the final array status.
Creating a RAID 10 (0+1) Array.
A RAID 10 (0+1) array will require four hard drives.
If you are configuring the Windows boot drive into the RAID 10 (0+1) array, then you need to use the Intel option ROM method for creating the array. Tapping Cntl-i at boot up will get you into the Intel option ROM firmware setup utility. Once the array has been created then boot up your image recovery disk and load the array from your image backup.
If you are creating a RAID 10 (0+1) data only array then you can use the IRST when running Windows to create the array. You can also use the Intel option ROM firmware setup utility. Even though this HP VISTA RAID setup article is dated, it does have some excellent information.
The following procedure will build the RAID 10 (0+1) array using four hard drives using IRST.
Launch IRST.
This create process will be using the last four hard drives listed in the above image under Storage System View. Notice that the hard drives are not the same size. Two of the hard drives are 1.5 TB and two hard drives are 2 TB. While it’s recommended to use all hard drives of the same size, it’s not required. The RAID 10 creation progam will pick to two smallest hard drives for the striped pair and then the two largest hard drives for replication pair but not the opposite as the two largest hard drives if used as the striped pair would not fit on the two smaller hard drives for replication. Now click Create.
Select Balanced performance and data protection (RAID 10) and click
on Next.
Select the four hard drives for RAID 10 and click on Next.
Notice that IRST is set to create a RAID 10 volume with the capacity of 2.7 TB.
Review the volume creation selections then click on Create Volume.
Review the final warning then click on OK.
Now click on OK and review the final array status.
Conversion from RAID 0 to RAID 5
If you have a RAID 0 hard disk configuration and you are concerned that a hard drive failure will cause your PC to crash or results in data loss then you might have an option to use RAID 5. A RAID 5 three drive configuration can survive a single hard drive failure but not two failing hard drives. While there are other RAID configurations possible, this document will only be addressing a three hard drive configuration using the Intel SATA controller. Some of the newer HP PCs can accommodate three hard drives and can be configured when ordered with RAID 5.
Observe the below image. This PC has a RAID 0 2.7 TB array. To build the RAID 5 array, you will need to add (configure) an additional hard drive into the array. Click on Manage and then add an eligible hard drive to the array.
Note: all data on the hard drive to be added to the array will be lost since parity and data from the existing array needs to be written to the added hard drive to create the RAID 5 array. Take backups of your existing array in case something goes wrong.
Once you are on the Manage screen then click on Change type.
The following screen will appear:
Select the drive to be included into the array and click on OK.
When the migration process begins, the Status is now indicating migrating and the Type is RAID 5. The hard drive added was 2 TB which meets the minimum amount. BE PATIENT! The migration process will take a very long time for an in place migration to complete.
It’s much faster to delete out the original RAID 0 volume, create the new RAID 5 volume and then reload the original RAID 0 image from your backups. I recommend that you consider
this method verses the in place approach.
Click on Status to show the migration progress.
RAID 0 to RAID 5 Observations
I was able to shut down and boot the RAID configuration before the migration process had completed. The in place migration method was very slow, about 3% per hour and hence my recommendation to use a differnet method. Booting up from different hard drive before the migration process has completed results in a BSOD on boot up.
After completing the RAID 5 conversion, I did receive a message from IRST indicating that one or more volumes is protected against a hard drive failure.
Other RAID Migrations
While there are other RAID migrations options available, they can be platform (chipset) specific. Review this Intel Chipset article on supported RAID migrations. Even though the Intel RAID migration has a safety function built into the process in the event of a power loss or shutdown, it’s always best to have a complete set of up-to-date backups.
The migration process can be painfully slow. The migration time is largely dependent on the hard drive sizes and the number of hard drives involved in the overall migration. In some cases it might be faster to build the RAID array from scratch and then load the data back to the array verses using an in place migration process.
It is possible to increase the overall RAID array (volume) size with some RAID configurations by adding hard drives to the array. The overall size of the array may be limited by how the array had been previously formatted by Windows. Review the information under the Considerations topic in this document.
*********updated August 21, 2013
If you are using SSDs in a RAID 0 configuration then you will need to have the Intel 7 or 8 chipset plus Intel Rapid Storage Technology (IRST) version 11 or higher to get Windows TRIM support to function. The latest version of IRST as of 8/21/2013 that I have seen is 12.7.1036.
*************DISCLAIMER***********
There may be inaccuracies with the information contained in this document so please consider that when using RAID.
*************DISCLAIMER***********
HP DV9700, t9300, Nvidia 8600, 4GB, Crucial C300 128GB SSD
HP Photosmart Premium C309G, HP Photosmart 6520
HP Touchpad, HP Chromebook 11
Custom i7-4770k,Z-87, 8GB, Vertex 3 SSD, Samsung EVO SSD, Corsair HX650,GTX 760
Custom i7-4790k,Z-97, 16GB, Vertex 3 SSD, Plextor M.2 SSD, Samsung EVO SSD, Corsair HX650, GTX 660TI
Windows 7/8 UEFI/Legacy mode, MBR/GPT
Attachments:
RAID for Consumer PCs.doc ‏3761 KB

Great document
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Information about setting up the RAID system

I'm completely ignorant here, so you'll have to bare with me. I'm just trying to work out whether I've set things at least correctly if not optimally!
I've got a Mac Pro with four single Terrabyte disks. I've gone to the Raid utility and chosen the Raid 5 setting for maximum security. It's set this up and all be one of the Disks has disappeared.
I've gone back to the RAID Utility and clicked on the RO-1 set - there is only one now, which I'm assuming is normal. And created a volume. I created the largest one it would allow me to.
This gave me a volume of 1.47 TB
Now, to me this looks like I had four T of memory before starting this and now I have two and a half - the Disk 1 and the Raid Volume -
Is this how the system works, by creating backups in those areas I can't now see?
I'm trying to set this up for Final Cut Pro and wonder if this a useful configuration. Any comments please. So far I've no data in the system to worry about so I'm just trying to work out the best set up.

I'm pretty sure I don't quite understand what you've done, but if your intent is to create a RAID 5 array of your four 1 TB drives using Disk Utility then here's what you do:
1. Open Disk Utility. Select a drive from the left side list (mfgr.'s ID and drive size) then click on the Partition tab in the DU main window. Set the number of partitions to 1 then click on the Options button. Select the GUID partition option and click on the OK button. Set the format type to Mac OS X Extended, Journaled then click on the Partition button. Repeat for all the drives.
2. Once the four drives have been formatted click on the RAID tab in the DU main window. Drag each volume (sub-entry of the drive entry) into the list box. Give the array a name, select either Striped or Concatenated RAID from the RAID type drop down menu, set the format type to Mac OS X Extended, Journaled. If you want the RAID to automatically repair itself then click on the Options button and check the box so labeled in the dialog.
3. Click on the Create button.
I would suggest creating a Striped RAID rather than a Concatenated one. You cannot create a RAID 5 array with Disk Utility. Only 0, 1, and 0+1 arrays. If you want a RAID 5 array you will need to purchase a separate RAID card such as the one Apple sells. If you want some redundancy you could create two striped RAIDS (2 drives in each array) and then create a mirrored RAID of the two striped arrays. Basically this gives a 2 TB mirrored array rather than a 4 TB striped array.
You might want to read up on RAIDs since you say you don't know anything about them. You might do this before you attempt to do a RAID. You might also think about what your actual data needs are and whether storage space is the primary concern or data backup.
RAIDs .

Harm, looking for a quick answer on a RAID question...

I bought a G-Speed ES drive with the G-Tech RAID card, set up the drive yesterday, initialized it (took 9 hours!) as a RAID-5, and in the initiallization settings window I was asked what sector size I wanted. I did some quick research and found that bigger sectors are better with bigger files, so choose the maximum size available to me under the hardware RAID, which was 4k (I'm assuming that's 4096). Came into the office this morning and found the drive had finished the initilization and that Windows required me to create a "simple volume" on it before it could be used. I'm in the process of doing that, and have found that Windows is asking me to set a sector size again: This time my maximum option is 64k. Do I want to go with the maximum option of 64k, or do I have to use the 4096 which the hardware RAID used in initializing the array?

David,
This may be informative: http://www.tomshardware.com/reviews/wd-4k-sector,2554-3.html
With a sector size or cluster size of 4 KB, data are distributed across the partition in 4 KB parts. Suppose you have a 10 KB file, three full clusters will be occupied: 4 KB - 4 KB - 2 KB. The remaining 2 KB is called slackspace and can not be used by other files. With a block size (stripe) of 64 KB, data are distributed across the array disks in 64 KB parts. Suppose you have a 200 KB file, the first part of 64 KB is located on disk A, the second 64 KB is located on disk B, the third 64 KB is located on disk C and the remaining 8 KB on disk D. Here there is no slackspace, because the block size is subdivided into clusters. When working with audio/video material a large block size is faster than smaller block size. Working with smaller files a smaller block size is preferred.
Sometimes you have an option to set 'Chunk size', depending on the controller. It is the minimal size of a data request from the controller to a disk in the array and only useful when striping is used. Suppose you have a block size of 16 KB and you want to read a 1 MB file. The controller needs to read 64 times a block of 16 KB. With a chunk size of 32 KB the first two blocks will be read from the first disk, the next two blocks from the next disk, and so on. If the chunk size is 128 KB. the first 8 blocks will be read from the first disk, the next 8 block from the second disk, etcetera. Smaller chunks are advisable with smaller filer, larger chunks are better for larger (audio/video) files.
What you see as 'sector size' from Windows is better called the block size and for video you can best choose the maximum, in this case 64 KB.
BTW, also have a look at Adobe Forums: How to access more than 2 TB of disk...

X58m raid settings

I just recently bought an x58m motherboard, I have a brand new fresh install of windows 7 and everything seems to work fine.
However, in the bios If I try to enable either raid or ahci as raid options I get a bluescreen before the OS even loads.
I am not running any drives in raid, the reason why I wish to enable achi is that I want my e-sata drive to be hot swappable.
Currently I have to turn it on before my computer and turn it off after my computer.
The only suggestion I've seen regarding raid settings is to install a fresh version of windows with them enabled.
I'd like to avoid doing this if at all possible.

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It makes no mention in the bios which controller I am adjusting to raid or ahci.
The RAID Setting for the Intel ICH10R Controller is located here:
Integrated Peripherals -> On-Chip ATA Devices -> RAID Mode = [IDE / AHCI / RAID]
Quote
As far as how I installed the drivers, I have been running in IDE mode, this is the only mode that will boot, I installed the drivers and after a successful reboot went into the bios and changed to achi and raid going through 3 bsods each before switching back.
That is precisely where the problem starts: You cannot install the drivers for something that is not there yet. When you install the drivers while the controller is in IDE mode, they are not actually installed. The controller already needs to be in RAID Mode, otherwise the drivers can't be properly installed. This is a common Windows dilemma. Even though Vista and Windows 7 are supposed to be able to handle a switch of the controller mode to AHCI or RAID better than XP because they provide generic drivers, they utterly fail in most cases, because the drivers are either crap or the routine for adapting to the switch to RAID or AHCI is useless. Also, keep in mind, that Windows 7 is still not officially released and that Intel does not provide official driver support for Windows 7 yet. The bottom line is, that this whole thing is a problem that has to do with the operating system alone, not the board or BIOS.
The best option you have is to switch the controller to RAID Mode, then configure your Array via the Intel Matrix Storage Manager Option ROM, start to reinstall Windows 7 again and integrate the Intel ICH10R RAID Drivers when you get the chance to do so during the Setup Procedure. If you decide to do so, please download the latest ICH10R RAID Drivers directly from Intel.

Achieve RAID 0+1 on 6130 Array

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