that was the conclusion I came too. Regarding calling buffalo, the phone wait time is usually estimated to 8 hours. Thanks for the tips. Eric On Tue, Nov 17, 2009 at 1:23 PM, Lisa Kachold wrote: > > > On Mon, Nov 16, 2009 at 10:10 PM, Eric Cope wrote: > >> We think the drives are good. We want to mount the four drives to extract >> the data (it was RAID 5). We only have 1 SATA2USB adapter. If I am able to >> read the whole paritition (using dd), how can I mount 4 iso's using RAID to >> get the data? >> >> On Mon, Nov 16, 2009 at 7:20 PM, Lisa Kachold wrote: >> >>> Hi ERIC >>> >>> On Mon, Nov 16, 2009 at 6:19 PM, Eric Cope wrote: >>> >>> some light googling revealed buffalo as a UFS partition over four >>>> drives. Has anyone recovered a software RAID 5 configuration? Can I dd to an >>>> iso, mount the iso's, mount the raid, extract the data, and move forward? >>> >>> >>> You might have a different super block on the disk from Buffalo. You >>> might check your exact model (Is this a LinkStation) against the HowTo's >>> from Buffalo? >>> >>> Knoppix works really well for restoring disks (every systems admin needs >>> a knoppix USB flash) >>> >>> Page 218 dd_rescue (in case there are bad blocks): >>> http://www.scribd.com/doc/15490322/Knoppix-Hacks-by-OReilly-Media >>> >>> Buffalo's Wiki shows a procedure on how to restore data to a LinkStation >>> using Knoppix: >>> >>> http://buffalo.nas-central.org/wiki/Upgrade_%28or_replace%29_the_existing_LinkStation_hard_drive >>> >>> And: >>> >>> http://buffalo.nas-central.org/wiki/Upgrade_%28or_replace%29_the_existing_LinkStation_hard_drive#Backup_your_entire_hard_drive.2C_partition_a_blank_drive_on_a_Knoppix_workstation >>> >>> Full Knoppix Hacks (ripped to Scribd): >>> http://www.scribd.com/doc/15490322/Knoppix-Hacks-by-OReilly-Media >>> >>>> >>>> >>>> >>> > >> Hi Eric >>> >>> According to Buffalo's wiki: > > With RAID5 the data is distributed accross all disks and one disk stores an > XOR checksum of the remaining (n-1) disks. So you can loose 1 disk. > > In theory you should be able to connect all disks to a workstation, and > repair it there. In practice this does not work, as the byte orderof a recular workstation (i386) is different and the MD driver is not endian > agnostic. An Apple Mac is required for this. > > See Moving disks , or Terastation > crash after power failure. > > > xfs_repair on the Terastation worked for me. See reb's post : Raid 5 '4 red > lights' issue > Reference: > http://buffalo.nas-central.org/wiki/Terastation_Data_Recovery#RAID5 > > *For superblock identification and data repair on one disk see > http://buffalo.nas-central.org/wiki/Moving_disk*s > > Buffalo uses Linux for RAID 5 on a Terastation (what is your model - that's > important), but the data is distributed across the drives. > > The easiest would be to purchase a replacement Buffalo, use it to restore > your data (being careful to place your system in exactly the same > configuration, marking each drive as you take it out) and when you have > completed your task, and determine you no longer need it, return it. > You will pay a restocking fee, at most. > > This ufsexplorer (tool) link might assist you to see the drive structure: > http://www.ufsexplorer.com/inf_terastation.php > > And don't ask us, CALL or email Buffalo and look at their wiki! > > > -- >>> Skype: (623)239-3392 >>> AT&T: (503)754-4452 >>> www.it-clowns.com >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> --------------------------------------------------- >>> PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us >>> To subscribe, unsubscribe, or to change your mail settings: >>> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss >>> >> >> >> >> -- >> Eric Cope >> http://cope-et-al.com >> >> --------------------------------------------------- >> PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us >> To subscribe, unsubscribe, or to change your mail settings: >> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss >> > > > > -- > Skype: (623)239-3392 > AT&T: (503)754-4452 > www.it-clowns.com > > > > > > > > > > > > > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > -- Eric Cope http://cope-et-al.com