problems parbreastioning a 2.2TB Xraid on RHEL 4

Michael Heiming I'd tried parted earlier thinking that maybe fdisk was hosed and it didn't work. Neither does sfdisk (results below). I thought that I could just get around this issue by slicing my two raid arrays into 4 1.1TB slices and then use mdadm to raid0 them all together. However when I do that the resulting fs registers as 376GB. I can put three of the 1.1TB slice in an mdadm raid0 and get a 3.3TB out of the deal. It's curious to me that the parbreastion problem seems to be on a 2TB boundary and the file system issue seems to be on a 4TB boundary. As though there's a sysctl parameter or compile time option that I'm unaware of.

I checked on the redhat site and RHEL 4 supposedly supports a file size of up to 8TB so I buttume parbreastion sizes and file system sizes should match.

Any other ideas? I'm out of em.

-Mark

---------------- Begin info -------------------

Diskdev-sdd: 291843 cylinders, 255 heads, 63 sectors-track Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0

Device Boot Start End #cyls #blocks Id Systemdev-sdd1 0 - 0 0 0 Emptydev-sdd2 0 - 0 0 0 Emptydev-sdd3 0 - 0 0 0 Emptydev-sdd4 0 - 0 0 0 Empty Checking that no-one is using this disk right now ... OK

Diskdev-sdd: 291843 cylinders, 255 heads, 63 sectors-track Old situation: Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0

Device Boot Start End #cyls #blocks Id Systemdev-sdd1 0 - 0 0 0 Emptydev-sdd2 0 - 0 0 0 Emptydev-sdd3 0 - 0 0 0 Emptydev-sdd4 0 - 0 0 0 Empty Input in the following format; absent fields get a default value.

dev-sdd1 :0 291843dev-sdd1 0+ 291842 291843- 2344228897 83 Linuxdev-sdd2 :dev-sdd2 0 - 0 0 0 Emptydev-sdd3 :dev-sdd3 0 - 0 0 0 Emptydev-sdd4 :dev-sdd4 0 - 0 0 0 Empty New situation: Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0

Device Boot Start End #cyls #blocks Id Systemdev-sdd1 0+ 291842 291843- 2344228897 83 Linuxdev-sdd2 0 - 0 0 0 Emptydev-sdd3 0 - 0 0 0 Emptydev-sdd4 0 - 0 0 0 Empty Warning: no primary parbreastion is marked bootable (active) This does not matter for LILO, but the DOS MBR will not boot this disk. Do you want to write this to disk? ynq y Successfully wrote the new parbreastion table

Re-reading the parbreastion table ...

If you created or changed a DOS parbreastion,dev-foo7, say, then use dd(1) (See fdisk(8).)

Diskdev-sdd: 291843 cylinders, 255 heads, 63 sectors-track Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0

Device Boot Start End #cyls #blocks Id Systemdev-sdd1 0+ 24493- 24494- 196745249 83 Linuxdev-sdd2 0 - 0 0 0 Emptydev-sdd3 0 - 0 0 0 Emptydev-sdd4 0 - 0 0 0 Empty