I have the following system: Fedora Core 3 Kernel 2.6.12-1_1386_FC3smp Apple Xraid attached via a Qlogic Fibre-channel card Apple Xraid is full (14 500gb drives) made into 2x3.0Tb filesystems (with 1 disk for RAID-5 parity in each). Ext3 filesystems created using GNU parted and mkfs. This system has been working perfectly since March (along with another identical system, still running) but last night, a routine reboot had the system come upclaiming that the disk is physically only 750 Gb in size. Now it looks to me as if the disk has lost it's gpt label and is 32-bit wrapping the available disk size (effectively blocking 2Tb of space). I can see the full file structure within parted, and can mount the partition. df -h shows: /dev/sda1 2.7T 2.0T 748G 73% /mnt parted shows: (parted) print Disk geometry for /dev/sda: 0kB - 3001GB Disk label type: msdos Number Start End Size Type File system Flags 1 32kB 801GB 801GB primary ext3 boot Now I'd dearly love to get back the data on these partitions but at the moment they think they are standard msdos-type partitions and won't let me access 2Tb each of data. I've google'd (and found: http://lkml.org/lkml/2005/2/9/150 which describes my problem well, but no solution. Anyone got any ideas? It looks to me as if the filesystem has replaced its gpt partition label created originally by parted with a msdos partition label. If I can create an identical partition on another machine on another such RAID box can I dd the partition information and the superblock off that and onto this one? Ian UNIX/Network Security Manager. -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
