Soft raid stripe from 3 different drives?

Hi,
I'm on a mac pro running 10.5.8. Apart from the boot drive I have two 150GB drives which I have as a stripe. I wanted to add to them a 250GB drive either whole or as a 150GB partition, but disk utility returned with a failure saying mixed partitioning not allowed.
Is there a possibility to create a stripe from these 3 combined to push up the performance a bit more?
Thanks
Tomasz

You would have to delete the existing array then create a new array using the three drives. Bear in mind that anything currently stored on the existing array will be lost so you need to make a backup of the array beforehand.

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Internal RAID with 2 different drive makes

Currently, I have a 750GB Scorpio Black drive and I have about 20% free space. Originally, I had originally planned on swapping out the optical and putting another SB 750GB in there and creating a RAID 0. However, now that Seagate has released a 750GB Momentus Hybrid, I was wondering if I could get one of those and use it in conjuction with the Scorpio? I know I might lose a minimal amount of space as one drive might be read as slightly smaller, no big deal. How would the controller in the Seagate function in respects to what it put to the SSD portion? A RAID 0 with 2 Seagates would be optimal, I know, but I'd like to conserve a little on the funds.

RAID 0 is ludicrous for a boot drive other than a Mac Pro, then a SSD is much better and safer choice.
Apple won't let one install OS X on a RAID 0, other means has to be employed to get OS X onto the boot RAID o set.
RAID 0 splits the data path amongst all the drives in the set, any glitch with any drive and all your data is gone, *poof*.
So you have to maintain a cloned backup on a external drive nearly everyday, which is easy in a MacPro as there are four drive bays.
If you want speed and reliability in a boot drive, go with a SSD (barely keep any users files there) and use the other drive in the optical bay for large storage capacity, especially with a laptop as it's moved around a lot and thus the drive gets damaged more than a desktop.
You should know one can't boot from a OS X install disk once the optical drive is replaced, external optical booting is not possible.
So your going to need to learn how to clone your boot drive to blank extenral drive using the donationware Carbon Copy Cloner and hold the option key down while booting to use it, thus clone onto the new SSD or whatever.
I ran a boot RAID o 2x 10,000 RPM drives in a PowerMac G5 for many years, the performance was awesome, but only if I was doing large moves of data or many things that accessed the boot drive constantly. Most small time stuff there was really no difference with a regualar 5,400 RPM drive.
However back then the cloning was manual, no automatic ability like there is now.
A fresh install of 10.6 on a SSD will brighten your day.

Calling a Smartform from different driver programs

Hi everyone,
I have two driver programs and from both these programs i'm calling the same Smartform.
I have a field in smartform. and i want it to be printed for one program but not printed when the
smartform is called from the second program.
Pls. can anyone help me out about how this can be achieved.
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Create an import parameter (flag) in your smartform interface and when you call your smartform from one of these drivers pass assume 'X' value to this flag. And add a condition for the field you want to hide. like below.
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Is there a simple way to merge two iTunes libraries from different drives?

I have an iTunes library or, more significantly, an iTunes music folder, on a hard drive I haven't used in a while. I'd like to merge it into the one I'm using now.
Is there an easy way to do this, and what about duplicates and, especially, variant encodings of the same title?

if you're on iTunes 9, the easiest way would be to drag & drop the contents of the (external ?) hard drive into the *automatically add to iTunes* folder inside the iTunes folder of the target machine.
you will have duplicates, which can be deleted later on (or kept and filtered using smart playlists).
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Time Machine backup FROM multiple drives?

I'm in the process of choosing a new MacPro, someone on these forums recommended Digilloyd's Mac Performance Guide as a good place to get help setting up a new mac for speed. The simplified version of what he advocates is replacing the stock internal drive with an SSD drive, on which you put the OS, apps & home folder. He then recommends creating a 0-raid stripe from 3 other drives to separate & hold your data, then using the forth internal bay drive (or another 0-raid stripe of the leftover, slower portions of various partitions of the drives) for Time Machine.
My question is, can Time Machine backup both drives (boot & data raid-0) or would I have to choose one of them?
+The more I read, the more confused I get+.

OK, I've scanned through the various articles. My thoughts are still essentially the same, and that is just how effective the entire system is when using multiple partitions from several drives to combine into multiple RAIDs. In reality this is not speed effective if the RAIDs need to be accessed concurrently. A read/write head can only be in one place at a time meaning that when one partition on the drive is being accessed, the OS cannot concurrently access another partition on the same drive.
Essentially this is how I understand the configuration at a simplistic level. Let's suppose we have two hard drives that we'll call Drive A and Drive B. Each drive is partitioned into two equally sized volumes that we'll refer to as follows:
....................... *Drive A* ......................... *Drive B* ......
Volume................. 1 ..................................... 3 ............
Volume................. 2 ..................................... 4 ............
Now, we will make two RAID arrays. RAID A uses Volume 1 and Volume 3, and RAID B uses Volume 2 and Volume 4.
Suppose you want to copy data from RAID A to RAID B. In order to do this the OS must first copy data from RAID A before it can write the data to RAID B. However, if RAID A was created using two separate drives (say, Drive A and Drive B,) and RAID B was created using two separate drives (say, Drive C and Drive D,) then the OS can copy from RAID A while concurrently writing to RAID B. This is physically possible because two read/write heads are involved instead of one. Theoretically the second construct is going to be much faster than the first construct.
My second observation is with regard to the reliance on external storage. A 2nd or 3rd generation Mac Pro's SATA bus is capable of a data interface rate of 3.0 Gb/sec. Firewire 800 is capable of 800 Mb/sec. The MP's internal SATA bus can support data transfer rates nearly four times that of Firewire. A modern hard drive is capable of saturating the Firewire bus, but not the internal SATA bus. The higher interface rate of the SATA bus means it's much better suited for truly fast RAID arrays. This is not the case for the Firewire bus.
External Firewire arrays are better suited for storage that does not require frequent or fast access.
Now with all this said it makes more sense to fully understand what your overall storage needs are then consider suitable designs. One need not rely on complicated RAID arrays if they aren't required. The focus should be on data access, data storage, and backup needs.
Although it's nice being able to brag at the cocktail party about having a fast SSD for your boot drive, let's consider how often you even need to boot the computer. I put my computers to sleep when they aren't in use. I never boot the computer unless a software update requires it or the computer has crashed completely. I haven't had the latter occur very often - mainly when I'm experimenting. Literally days, weeks, or months may go by before I reboot the computer. So a fast SSD boot drive would be for me a hugh waste of money.
My 1st generation Mac Pro is set up for my needs. It has four 500 GB fast Hitachi enterprise level hard drives. I use enterprise level drives that cost more because the computer is always on, so I want drives that will be reliably working. I used to have four Maxtor 300 GB drives that lasted for four years before I replace them with the Hitachis. My setup has one drive partitioned into a startup volume and a Boot Camp volume. One drive is my 'scratch' drive used for different OS system versions and/or seed testing. Two drives are configured as a mirrored RAID and used as the primary backup for the boot volume. The boot volume is 450 GBs and the Windows volume is 50 GBs. There's no backup for the Windows volume at the present time. Backups are usually done in the late afternoon using a backup utility. Presently that utility is Synk Standard, but I've also used Synchronize! Pro X and Carbon Copy Cloner. Backups are done on a fixed schedule in the background so they are virtually transparent to me. I use a mirrored RAID for backup to provide redundancy. If one backup drive fails hopefully the other will still be usable to protect the backup. I also have one external Firewire drive that contains a clone of the startup volume. The clone is updated monthly by incremental backup. It's for security in the worst case scenario that both drives in the mirrored RAID were to fail simultaneously.
Now, my need for frequent and fast access to data such as might be needed for streaming music or video is non-existent, so my configuration is one that is well-suited to my needs. You'll note that it's both simple and practical while providing data backup that's doubly secure.

2 different drives on my RAID connectors?

I think I've seen this asked before, but can't remember the answer or find the thread, so I have to ask again:
I have an MSI 845 Ultra MS6398 with RAID connecters IDE3 and IDE4. I have hooked a 40gig Maxtor hard drive on IDE3 in a 1+0 array and it works fine. What I'd like to do is add an 80gig hard drive on IDE4 with completely different data on it. Is this possible, or advisable? If so, how do you make it happen?
Earl

Thanks. Toward the bottom of his write-up he says:
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
To add more hard drives to either IDE-3 or IDE-4, you may repeat the steps from No. 5, ONE DRIVE AT A TIME, it's crucial to make sure the RAID BIOS detects each drive, set each drive as single disc array and NOT to mix with other existing arrays.
If any comments, problems and suggestions, feel free to post follow-up here.
with best regards,
Maesus
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX X
that "set each drive as single disc array and NOT to mix with other existing arrays"
is not crystal clear, but hopefully I can just follow my nose.
Earl

Problem when booting from PATA drive on IDE-3 with SATA RAID on ICH5R

Hello,
I have a PATA drive installed as Master on IDE-3 (Promise Controller), using Windows XP as the operating system. I also have an aditional drive as Slave on IDE-3.
I recently bought 2 SATA drives which I would like to use as a RAID array, so I connected them to SER-1 and SER-2, on the ICH5R controller.
I set the On-Chip IDE Configuration as follows:
Native Mode
SATA Only
Keep PATA Active - Yes
PATA Channel selection - Both
Configure SATA as Raid - Yes
I have my PATA Master IDE-3 drive as the firts boot device...unfortunatly now my system does not boot up.
It goes through the Intel Raid Bios screen, then the Promise Controller screen, and then when it was supposed to start loading windows, the screen remains black for about 2 minutes and after it I receive an error message warning me that Windows has detected a hardware configuration problem.
I went back to BIOS and changed the "Configure SATA as Raid" to NO, and now everything works fine, except for the fact that I have no RAID array installed.
Can anyone help me with this?
Thanks,
Mihalis

The PATA IDE channel associated with the Promise controller is exclusively designed to be used as a RAID solution. It seems you have an invalid hardware installation of your 2 EIDE drives. Although you succesfully installed WinXP using that configuration, you're destined to have unpredictable behavior because of it.
WinXP looks to the BIOS first to identify hard drives. Then it does something that no other OS has done before (except maybe Win2K), it attempts to detect the hard drive directly through the wires itself. If it finds something, it installs resources to get it to work right. In your case, WinXP has bypassed the BIOS and detected the drives but doesn't really know where they are. WinXP just knows they are there so it supplied the necessary resources to complete the installation.
That drives that are connected to the Promise controller must use the Promise RAID drivers supplied with your motherboard so that the Promise controller can properly report to the OS. You could have conected the same two drives on the same controller, but they needed to be configured as RAID drives within the Promise controller utility.
To have them recognized as separate drives, you need to define each drive as a stripe, except you would have a 1 + 0 stripe instead of a 1 + 1 stripe. The drives are still connected the same way (Master/Slave) as you have them now. This congiguration would allow you to take advantage of the Ultra ATA 133 feature of that channel as long as you attached hard drives which support that standard.
Finally, you would set the "Onboard Promise IDE" menu as "RAID" to have the drives properly recognized through the BIOS. Currently, you have that set as "S-ATA" but you have no S-ATA drives installed on that controller.
I realize this does not resolve your original problem, but at this point, I would recommend that you back-up data at your earliest convenience and start over.
If you do decide to start over, you may want to consider attaching your S-ATA drives to the promise controller instead of on the Intel controller. Aside from getting better performance, it makes for a much simpler install through the Promise controller utility and then everything is manageable through the PAM utility at the desktop.

845PE Max2 RAID with 2 80 GB Harddisk from different Manufacturer

sorry for my bad english first
i have a 845PE Max2 and i want to create a RAID 1 System with my 2 Harddisks. I have a Western Digital 80 GB (7200, 8MB Cache, UDMA/100) and a Seagate 80 GB (7200, 8MB Cache, SATA/150).
can i create a RAID with these 2 harddisks or do they have to be absolut identical?

I have two drives from different manufactures in a raid configuration and it works ok as long as they are the same size.
However it is not a RAID 1 configuration it is a RAID 0.
RAID 0 - combines 2 drives as 1. in my case 2 x 30Gb drives became 1 x 58 Gb drive.
RAID 1 - needs 4 drives the same it would combine 2 drives as above with the other 2 doing the same. The second pair of drives would hold a copy of the first pair so if there was any loss of drive integrity (i.e. failure) the second pair may be used to correct the problem.
As far as I know that is the way it works but please do check around the net for the definitions of RAID configurations
try
http://www.iomega.com/support/documents/11242.html
for definition of RAID 0 and RAID 1.

New PC and want to move library to a different drive location from original PC

I've just built my self a new PC and would like to move my iTunes music to my new PC.
I know this is a pretty straight forward thing to do as I have done it on more than one occassion before without any hassle.
It's a little different this time though, I need to move the libary to a different drive from the default location as my C: drive is an SSD and can't fit my entire libary on it.
I've got my iTunes music folder backed up on an external drive, I thought it would just be a case of installing iTunes on my new PC copying my music to the drive I want it on and telling iTunes that this will be my new storage location.
After a bit of playing around I managed to get iTunes to see all my music again.
I'm having trouble getting it to find my cover artwork though and my old ratings and playlist count.
Does anyone know how to restore these?
Also do I have to have 2 iTunes fodlers on the computer? 1 in the stanard C: drive loaction and 1 where I now have all my music. Can I not just have it all on the 2nd drive?
If I copy the 4 libary files from my backup into the new folder it gives me my old ratings and playlist count back but loses all the artwork and most of the files have broken links to them.
Sorry if I've not explained what I am trying to say very clearly, thanks for any help.

In iTunes under Edit > Preferences > Advanced turn off Keep iTunes Media folder organized, then click OK.
Use Edit > Preferences > Advanced to change the media folder location to D:\Music\iTunes\iTunes Media, then click OK. If iTunes asks to consolidate or move any files at this point say no or cancel.
Open the menu File > Library > Organize Library... tick Rearrange files in the folder "iTunes Media", and click OK.
In iTunes under Edit > Preferences > Advanced turn on Keep iTunes Media folder organized, then click OK.
Open the menu File > Library > Organize Library... tick Consolidate files, and click OK.
This should rearrange the media folder into the current structure with the minimum amount of physical file moves.
At this stage you should find that iTunes is now looking for your mobile apps at D:\Music\iTunes\iTunes Media\Mobile Applications. Check the properties of a single app just to make sure. If all is well you can reclaim the space on C:.
If it were me at this stage I would now close iTunes, then copy the library files and album artwork folder from wherever they are on C: into D:\Music\iTunes then shift-start-iTunes and choose the library at D:\Music\iTunes. It is at this point that the library is now truly portable.
Having made that work I would then close iTunes, move the iTunes folder up to D:\iTunes and shift-start-iTunes to open it, but that's my preference.
tt2

HT201250 How do I restore from Timeline external backup to a different drive?

Good day! Here's my current architecture
1 MacBook Pro OSX 10.8.2
1 Lacie Rugged External Drive (1T)
1 G Drive 2T RAID
1 MyPassport External Drive (2T)
I have been backing up weekly both the MacBook Pro AND the Lacie to the RAID Device.
Lacie Rugged: My Lacie has my iTunes. Recently there have been issues with communicating with the Lacie. Genius bar says there is an issue with the drive itself. I purchased a new Firewire to troubleshoot. Still shows that the drive accidentally disconnects (e.g. not available) after about a couple of minutes.
So I bought a new drive.
Restore: When I plug in my new MyPassport and access my Timeline backups, I cannot see the Lacie backups to restore. It seems that Timeline requires the original drive (Lacie) to be plugged in (which is the one I am having issues with).
Question: How do I restore from a backup(Lacie) to my new external drive(MyPassport)?

I imagine you mean Time Machine, not TimeLine. If you do mean Timeline, I have no idea what that is.
Try Pondini's FAQ#16: http://pondini.org/TM/16.html
And, #18: http://pondini.org/TM/18.html

Upgrade from sqlserver 2008 to sqlserver 2014, can I put software into different drive other than C: ?

Originally my sqlserver 2008 software was installed into E:, but I didn't see any drive selection options available during the upgrade steps, so now my sqlserver 2014 is installed into default C: drive.
If there are any ways to specify different drive ?
Thanks
Sophia Su

“Upon doing the initial upgrade, can I designate the target drive/letter”?
I didn’t see a place to change it in the upgrade process.
I don't want to uninstall sqlserver 2008, I just want to upgrade from 2008 to 2014 and be able to put the sqlserver 2014 software into the same drive (not C:) as my sqlserver 2008 is.
If previous version was on E drive upgraded version should remain on E drive as well. AFAIK there does not comes an option to specify different drive letter when doing in place upgrade how ever if you do side by side upgrade you can install new instance
of 2014 on what ever drive you like
In side by side upgrade you have to first install SQL Server 2014 and then move databases using backup and restore then migrate logins and jobs using scripting method.
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deduce that your SQL Server is on C drive.
Can you go to E drive can you see program files..Microsoft SQL Server ?
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Please mark this reply as answer if it solved your issue or vote as helpful if it helped so that other forum members can benefit from it
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I know this seems like a "laziness" question but it really does worry me that final cut gets confused as to what projects are on what drives when both are connected. It wouldn't worry me as much if both drives showed an identical projects list, that would make sense and i would have ignored it from the start. But the fact that every time i restart final cut the projects are randomly visible or not visible on either drive really makes me worrisome.

Soft raid stripe from 3 different drives?

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