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тАО03-07-2003 01:28 PM
тАО03-07-2003 01:28 PM
Raid 5 to Raid 0
1) get a good backup-just in case
2) change the raid settings from 5 to 0
3) reboot
I am sure it is not that simple but I am not sure. In theory will I lose any data or will it sort itself out. What types of things should I be prepared for. Will I need to run a restore? Or only restore if things go wrong?
tks
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тАО03-07-2003 01:30 PM
тАО03-07-2003 01:30 PM
Re: Raid 5 to Raid 0
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тАО03-08-2003 12:47 AM
тАО03-08-2003 12:47 AM
Re: Raid 5 to Raid 0
In this way, we can answer your question.
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тАО03-08-2003 05:35 AM
тАО03-08-2003 05:35 AM
Re: Raid 5 to Raid 0
Does your Raid controller support changing Raid level without loosing the data. Most entry level Raid controllers does not.
Your plan seems OK but you perhaps have to restore the data again after reconfiguring the Raid controller.
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тАО03-08-2003 09:50 AM
тАО03-08-2003 09:50 AM
Re: Raid 5 to Raid 0
One thing I can say for sure it that if you do this, it's not going to be fun to be you! We had a drive go out the other day on one of our servers. However, since it was mirrored, no one even noticed. Same thing for RAID 5. We've had drives go bad in the past and no one noticed (until we put the new drive in and it started the rebuild).
Maybe you could offer to split the cost of the drive with the company? Hehe, it might be worth it to you for peace of mind!
Ok, now for your actual question. If you've got something like the 5300, your procedure outlined above seems right according to the user's guide (I'm assuming all along that you're using Compaq gear), but without the reboot. You do your backup, run ACU, set the new RAID level under Migrate Stipe/RAID Level, then let it migrage the data to the new level. The manual says it takes about 15min/GB.
Good luck!
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тАО03-09-2003 07:39 PM
тАО03-09-2003 07:39 PM
Re: Raid 5 to Raid 0
Some details of your hardware/software configuration will help the group post a useful suggestion on your next step
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тАО03-10-2003 10:43 AM
тАО03-10-2003 10:43 AM
Re: Raid 5 to Raid 0
If the raid is just for data, you must totally back up the data (and make sure the restor will work!), as it probably will not fit on a single drive anymore like it does now on the raid5 (max drive size will be only 9GB in the new configureation).
In addition, if any applications are installed on the Raid5, then they will most likely NOT work in the new configuration, because the drive letter will be wrong, and the application will need to be re-installed from scratch too (hope you can find the original install disks and license information!). Because you do not know which drive the data is stored on, you will lose everything once you disolve the array (data is striped across all three drives in the array). Your time will cost him more than the drive does too.
You have my sympathy, and good luck. David