View Full Version : What happens to RAID array when switching mobo's??
ed.howell
02-01-05, 11:02 AM
I am thinking about switching from my Asus P4C800E to an Abit IC7-G mobo. Both have the Intel ICH5R but the Asus has a Promise controller for the secondary RAID and the Abit has a Silicone Graphics controller for the secondary RAID.
Neither RAID array is the boot drive.
My question is will I lose the data on the drives by switching motherboards?
FyreDaug
02-01-05, 11:16 AM
There should be no reason data will be lost, thats like asking if you take a floppy disk from 1 computer and put it in another if information will be lost.
Okay, well its not totally the same. But its still the same.
ed.howell
02-01-05, 11:22 AM
There should be no reason data will be lost, thats like asking if you take a floppy disk from 1 computer and put it in another if information will be lost.
Okay, well its not totally the same. But its still the same.
LOL!!
I didnt know if the different mobo onboard RAID controllers read and write data to the drives differently. Thats why I was asking
Mr.Guvernment
02-01-05, 11:27 AM
no - you have a chance of losing data because of the 2 different raid controllers - i had this issue once when going from a dell poweredge 2100 with built in raid to an PCI adaptec RAID card - lost everything suppoedly because raid cards / chips can read information differntly and store data differnetly - so there is a chance u could lose data.
ed.howell
02-01-05, 11:29 AM
no - you have a chance of losing data because of the 2 different raid controllers - i had this issue once when going from a dell poweredge 2100 with built in raid to an PCI adaptec RAID card - lost everything suppoedly because raid cards / chips can read information differntly and store data differnetly - so there is a chance u could lose data.
Thanks
That is what I thought. I figured that if they both had a Promise controller I would be ok, but since they are different I am taking a risk.
I swapped my RAID-0 for a short test to a p4c800 on the same controller (IC5HR), and when i placed it back i lost some of my data (luckily, nothing important).
Therefor, i wouldnt risk it and backup first.
ed.howell
02-01-05, 11:41 AM
I swapped my RAID-0 for a short test to a p4c800 on the same controller (IC5HR), and when i placed it back i lost some of my data (luckily, nothing important).
Therefor, i wouldnt risk it and backup first.
WOW!! If anything I would have figured that with the same Intel RAID controller the data would have been fine.
WOW!! If anything I would have figured that with the same Intel RAID controller the data would have been fine.
Thats what i figured before i swapped. After i put them back, windows was fine, but large files (movies, 3dmark installer) would get 'redundancy' and NTFS errors. I backed up as much as i could, then undid the raid and am since running with two separate drives.
Cjwinnit
02-02-05, 09:48 AM
Thats what i figured before i swapped. After i put them back, windows was fine, but large files (movies, 3dmark installer) would get 'redundancy' and NTFS errors. I backed up as much as i could, then undid the raid and am since running with two separate drives.
Strange that that happened...
Strange that that happened...
My thoughts ^^
If your runing RAID to combine drives to not have to worry about moving data across 2 drives. You can do this much safer by running the drives Dynamicly under windows. I do it and It works great!
I may be way off, but there is my .02
FyreDaug
02-02-05, 12:55 PM
Well my reply was based on personal experience. I've only done it once and I dont recall if they were both onboard promise on that system, but I swapped them over and it worked fine, they were also not run as an OS.
Big Mike
02-02-05, 03:04 PM
I never had a problem back in the day using integrated promise controllers, I went through like 3 MBs with 3 different revisions of controler <From an AT100 raid-modded second channel to a true raid AT100 to a AT133> and never lost any data on my pair. I finally got wise and bought a SCSI 15k drive to get the speed without having to worry about one drive taking a crap :)
Mr.Guvernment
02-02-05, 04:04 PM
If your runing RAID to combine drives to not have to worry about moving data across 2 drives. You can do this much safer by running the drives Dynamicly under windows. I do it and It works great!
I may be way off, but there is my .02
But then you are rely on a "software" raid solutions - and windows at that - your O/S goes down your screwed
the benefit of an external PCI raid card is that if your O/S goes down you can take the cards to another system to get your data
But, if this set up works for you and you have had no issues then more pwoer to you - personlluy i will never run raid 0 - i see no reason to with the size and speed's of HD;s today - and i do ALOT of large file transfers (400+mb almost hourly on some systems)
Cjwinnit
02-02-05, 04:22 PM
But then you are rely on a "software" raid solutions - and windows at that - your O/S goes down your screwed
the benefit of an external PCI raid card is that if your O/S goes down you can take the cards to another system to get your data
That and it uses less CPU cycles and is quicker generally.
I agree about RAID 0. I was using deathstars. And as we all know, RAID 0 + Deathstars = The Alamo :D
Mr.Guvernment
02-03-05, 11:16 AM
^^^ heheh :D * stars humming starwars theme*
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