snap drive fatal error

Kim Myers · 04-21-2006, 10:20 AM

We have a snap 2200 with 2 drives 80GB each. We were moving and a tech moved the snap drive and when it was set back up we could only see the 1st drive. The 2nd drive had a fatal error. The tech did a backup through windows (which later we found didn't work) He then ran check disk on drive 1 and it got a fatal error during the check disk. Is there anyway to get the data off these drives. Unfortunatly we do not have a backup.

Thanks,
Kim

blue68f100 · 04-21-2006, 11:57 AM

The only way to read the data is through another snap. Snap uses a modified XFS unix file system. If the unit is JBOD or RAID 1 all data is readable. If it was set to RAID 0 all data is lost.

Digital Dolly can do a raw copy. You could take a good drive and copy the data to it. Then put the new drive backin the snap.

The top drive is Disk0 (ID 10000), which is the main boot drive. You will need to copy the first 25 meg of the hd in order to get the OS to a new drive. With out it it want boot.

The wiki section has some examples of using dd from the knoppix cd.

Kim Myers · 04-21-2006, 12:20 PM

how do you find out if it is raid 0?
Sorry for asking dumb questions - I am not really a tech.

blue68f100 · 04-21-2006, 01:03 PM

The disk utility section should tell you.

Another way is the capacity of the mounted drive is = to the capacity of each drive added together - overhead ( 80+80=130). The fat table is only on the first drive.

Raid 1 just one drive shows (mirror).
JBOD has 2 seperate mount points.

04-21-2006, 10:20 AM	#1
Kim Myers Cooling Neophyte Join Date: Apr 2006 Location: FORT LAUDERDALE Posts: 2	snap drive fatal error We have a snap 2200 with 2 drives 80GB each. We were moving and a tech moved the snap drive and when it was set back up we could only see the 1st drive. The 2nd drive had a fatal error. The tech did a backup through windows (which later we found didn't work) He then ran check disk on drive 1 and it got a fatal error during the check disk. Is there anyway to get the data off these drives. Unfortunatly we do not have a backup. Thanks, Kim

04-21-2006, 11:57 AM	#2
blue68f100 Thermophile Join Date: Jul 2005 Location: Plano, TX Posts: 3,135	Re: snap drive fatal error The only way to read the data is through another snap. Snap uses a modified XFS unix file system. If the unit is JBOD or RAID 1 all data is readable. If it was set to RAID 0 all data is lost. Digital Dolly can do a raw copy. You could take a good drive and copy the data to it. Then put the new drive backin the snap. The top drive is Disk0 (ID 10000), which is the main boot drive. You will need to copy the first 25 meg of the hd in order to get the OS to a new drive. With out it it want boot. The wiki section has some examples of using dd from the knoppix cd. __________________ 1 Snap 4500 - 1.0T (4 x 250gig WD2500SB RE), Raid5, 1 Snap 4500 - 1.6T (4 x 400gig Seagates), Raid5, 1 Snap 4200 - 4.0T (4 x 2gig Seagates), Raid5, Using SATA converts from Andy Link to SnapOS FAQ's http://forums.procooling.com/vbb/showthread.php?t=13820

04-21-2006, 12:20 PM	#3
Kim Myers Cooling Neophyte Join Date: Apr 2006 Location: FORT LAUDERDALE Posts: 2	Re: snap drive fatal error how do you find out if it is raid 0? Sorry for asking dumb questions - I am not really a tech.

04-21-2006, 01:03 PM	#4
blue68f100 Thermophile Join Date: Jul 2005 Location: Plano, TX Posts: 3,135	Re: snap drive fatal error The disk utility section should tell you. Another way is the capacity of the mounted drive is = to the capacity of each drive added together - overhead ( 80+80=130). The fat table is only on the first drive. Raid 1 just one drive shows (mirror). JBOD has 2 seperate mount points. __________________ 1 Snap 4500 - 1.0T (4 x 250gig WD2500SB RE), Raid5, 1 Snap 4500 - 1.6T (4 x 400gig Seagates), Raid5, 1 Snap 4200 - 4.0T (4 x 2gig Seagates), Raid5, Using SATA converts from Andy Link to SnapOS FAQ's http://forums.procooling.com/vbb/showthread.php?t=13820

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