Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
I recently set up a new DRBD+heartbeat cluster for our webmail servers. All works well but... I'm a bit concerned because the partitions aren't exactly the same size. The hard disks are PATA disks in identical models in identical machines, and I created them exactly the same in fdisk - by using +4G as the size. Problem is, which I discovered after the fact, is that one machine shows the drive's partition table in CHS notation, and the other LBA, so for whatever reason, fdisk interpreted +4G differently on each. So here's what I have now: *** NODE 1: Device Model: FUJITSU MPF3102AT Serial Number: 05119851 Firmware Version: 0028 Disk /dev/hda: 10.2 GB, 10248118272 bytes 255 heads, 63 sectors/track, 1245 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/hda1 1 32 257008+ 82 Linux swap / Solaris /dev/hda2 * 33 519 3911827+ 83 Linux /dev/hda3 520 1245 5831595 83 Linux *** NODE 2: Device Model: FUJITSU MPF3102AT Serial Number: 05117966 Firmware Version: 0028 Disk /dev/hda: 10.2 GB, 10248118272 bytes 16 heads, 63 sectors/track, 19857 cylinders Units = cylinders of 1008 * 512 = 516096 bytes Device Boot Start End Blocks Id System /dev/hda1 1 497 250456+ 82 Linux swap / Solaris /dev/hda2 * 498 8248 3906504 83 Linux /dev/hda3 8249 19857 5850936 83 Linux hda3 is what drbd0 uses. As you can see the block size is different for each. It contains a reiserfs partition and doesn't seem to be causing any problems...yet...but it concerns me. I don't have any recollection of which machine the filesystem was mkfs'd on. The real question here is why is one disk shown using CHS instead of LBA? I checked the BIOS's on both machines, and both have LBA enabled. I don't mind rebuilding one of the nodes in order to get this remedied - does anybody know how to fix it? Somebody I was talking to said that a product called 'spinrite' might fix the drive, but he wasn't certain. -- Casey Allen Shobe | cshobe at seattleserver.com | 206-381-2800 SeattleServer.com, Inc. | http://www.seattleserver.com