On Sun, Mar 30, 2008 at 03:41:57PM -0500, Chris Adams wrote: > Once upon a time, Chris Adams <cmadams@xxxxxxxxxx> said: > > # dmraid -rD > > /dev/sda: pdc, "pdc_bacdae", mirror, ok, 585941248 sectors, data@ 0 > > /dev/sdb: pdc, "pdc_bacdae", mirror, ok, 585941248 sectors, data@ 0 > > # ls -l > > total 40 > > -rw------- 1 root root 0 Mar 28 10:47 sda_pdc.dat > > -rw------- 1 root root 2 Mar 28 10:47 sda_pdc.offset > > -rw------- 1 root root 10 Mar 28 10:47 sda_pdc.size > > -rw------- 1 root root 0 Mar 28 10:47 sdb_pdc.dat > > -rw------- 1 root root 2 Mar 28 10:47 sdb_pdc.offset > > -rw------- 1 root root 10 Mar 28 10:47 sdb_pdc.size > > > > The .offset files both have "0". The .size files have: > > > > sda_pdc.size:586072368 > > sdb_pdc.size:625142448 > > I manually decoded the metadata (at an offset of 63 sectors from the end > of sda and sdb) to see if there was anything odd, but I didn't find > anything that jumped out at me. > > I then searched through the end of both drives some more and found a > second metadata block on sdb at an offset of 49 sectores from the end. > It does describe the second logical device on sdb properly. > > I've attached both decodes. > > It looks like pdc_read_metadata stops looking on a drive when it finds a > metadata block. Yes, because it expects just one metadata block total. > Any suggestions on how that might could be changed? I > guess that the found drives should be ordered by the device number in > the raid struct. Need the image of the metadata to proceed any further. Please send the last 63 sectors of off each drive in binary. Cheers, Heinz > -- > Chris Adams <cmadams@xxxxxxxxxx> > Systems and Network Administrator - HiWAAY Internet Services > I don't speak for anybody but myself - that's enough trouble. > promise_id = "Promise Technology, Inc." <SNIP> > 00007f0: 100f 0e0d 0c0b 0a09 0807 0605 ............ > > raid.checksum = db890b40 > _______________________________________________ > Ataraid-list mailing list > Ataraid-list@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/ataraid-list =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Heinz Mauelshagen Red Hat GmbH Consulting Development Engineer Am Sonnenhang 11 Storage Development 56242 Marienrachdorf Germany Mauelshagen@xxxxxxxxxx PHONE +49 171 7803392 FAX +49 2626 924446 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- _______________________________________________ Ataraid-list mailing list Ataraid-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ataraid-list
