URGENT Help Needed!
by jeremey shelton
on
Aug 2, 2008 at 1:04:12 am
I was working on a project and had a power failure. Now my external FW800 will not mount. I pulled the two drives and plugged them directly into the SATA bay and Disk Warrior can see them both. It gave me the option to rebuild them. My question is since these two drives are RAID 0, will rebuilding them each individually ruin them or do further harm? I have tried to mount the external drive from two different machines, I have tried the FW800, FW400 and USB ports to no avail. I am really hoping someone can help me out on this. Thanks in advance!
Re: URGENT Help Needed! by Brendan Coots on Aug 2, 2008 at 1:24:26 am
If you do ANYTHING with the drives separately, you will lose all the data on them. RAID 0 is extremely risky, in that if anything goes funky you immediately lose all data. A power outage could definitely lead to this, and I hate to say it but you're probably hosed.
When using RAID 0 for anything, always do frequent backups to a different drive.
Re: URGENT Help Needed! by jeremey shelton on Aug 2, 2008 at 2:33:01 am
Ok, so after 4 hours of troubleshooting, pulling the drives out of the enclosure, etc. I think I have found the problem. It ended up being the external power supply. I just so happened to have another identical drive, and tried to plug in that cord instead, she fired right up. I guess I will be purchasing another power cord for the second unit.
The most important lesson learned was that I really need to backup to either another drive or start using a mirrored raid set up. Looks like I will also be on the market for a backup drive. The few bucks you save just doesn't add up to the real cost of the data lost!
I just wanted to post the status, so the thread wouldn't be left twisting.
Re: URGENT Help Needed! by Joe Moya on Aug 2, 2008 at 7:19:00 pm
Besides a good backup...
... I have found a very good battery backup system plus a very good surge protector is as valuable as a good backup system... and... a reliable battery and surge protector can easily cost $300 and up.
Power surges can wipe out internal or external backup drives if they are connected... in effect... the only good backup system is one that is not attached/connected and... stored in a fireproof vault, stored offsite or uploaded offsite... any combination of those storage locations will make for a truely good backup system... anything less will result in a fatal potential weak spot in the backup system.
Re: URGENT Help Needed! by Christian Wheel on Aug 4, 2008 at 7:13:58 pm
If you want a decent alternative to Raid 0, try Raid 5. It uses the capacity of one drive to create redundency. So let's say you have three 1TB hard drives and create a Raid 5 out of them. The capacity of the drive will be 2TB, but if any of the 3 drives fail, you'll still be able to mount the drive and recover all your data.
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Re: URGENT Help Needed! by Brendan Coots on Aug 5, 2008 at 5:51:39 am
RAID 5 is superior to RAID 0 when it comes to redundancy, but not when it comes to speed. In a setup with limited drive space (i.e. anything but an external enclosure) the speed of RAID 5 won't be so hot.
Everyone has their preference (and none are wrong) but I think smaller systems are better off with RAID 0 and routine backups.
Re: URGENT Help Needed! by Scott Roberts on Aug 6, 2008 at 6:14:30 am
Is it a Lacie drive that you're using? I have a Lacie external and I've gone through two power supplies already. I just ordered a new one and I'm waiting to receive it so I can get to some backup data.
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