Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
/ 2005-10-07 19:08:11 +0800 \ Francis I. Malolot: > But we double check our volume,all nodes has the size > it had all 1.5TB.See below the xfs_info of both nodes. the xfs_info is read from the super block, which is located at the very start of the device, and has been mirrored by drbd, so it is identical. obviously. > data = bsize=4096 blocks=384008192, if I just take this line, this is 8*384008192 == 3072065536 sectors. this is clearly _the_same_ as [A], but clearly larger than [B] and therefore beyond end of device (after connect). > ok. then, your lower level devices on the two nodes are not of the same > size, and you created the file system on the larger one. > now they connect, and DRBD can only "export" the minimum of the device > sizes to user space. > > let me quote from the log below: > > first creation of state block: > > drbd0: 1536032768 KB now marked out-of-sync by on disk bit-map. [A] 3072065536 sectors > after handshake: > > drbd0: 1535508480 KB now marked out-of-sync by on disk bit-map. > these are 3071016960 sectors, which is later the "limit" > in the "attempt ..." messages. > > > drbd0: rw=0, want=3072065536, limit=3071016960 [A] ^^^^^^^^^^ ^^^^^^^^^^ [B] > whereas XFS still thinks it has 3072065536 sectors, > and tries to use them. > > does that make sense to you? you want to compare # cat /proc/partitions # lvs --units s # dmsetup table # ... -- : Lars Ellenberg Tel +43-1-8178292-0 : : LINBIT Information Technologies GmbH Fax +43-1-8178292-82 : : Schoenbrunner Str. 244, A-1120 Vienna/Europe http://www.linbit.com : __ please use the "List-Reply" function of your email client.