Re: [DRBD-user] format /dev/drbd0
On 01/05/18 08:22, Roland Kammerer wrote: On Mon, Apr 30, 2018 at 02:59:23PM +0300, Ran Shalit wrote: Hello, I've seen in tutorial that we format the /dev/drbd0 block device (mkfs.ext4 /dev/drbd0). Should it give the same result as if we formatted the real device (for example /dev/sdb1) or are there any differences ? When you use a device as backing device for DRBD, you then should never ever touch the backing device directly. Just saying. You "have to" (you really should) format the DRBD dev, and not the backing device. Besides that, "the user visible behavior" should be the same. Obviously the DRBD device might be slower because of the replication over the network. But it should contain a normal ext4 filesystem... Most likely difference would be when using internal metadata, the DRBD device will be a smidge smaller than the backing device to account for this which may cause you problems. As Roland says, don't touch the backing device! Simon ___ drbd-user mailing list drbd-user@lists.linbit.com http://lists.linbit.com/mailman/listinfo/drbd-user
Re: [DRBD-user] format /dev/drbd0
On Mon, Apr 30, 2018 at 02:59:23PM +0300, Ran Shalit wrote: > Hello, > > I've seen in tutorial that we format the /dev/drbd0 block device > (mkfs.ext4 /dev/drbd0). > Should it give the same result as if we formatted the real device (for > example /dev/sdb1) or are there any differences ? When you use a device as backing device for DRBD, you then should never ever touch the backing device directly. Just saying. You "have to" (you really should) format the DRBD dev, and not the backing device. Besides that, "the user visible behavior" should be the same. Obviously the DRBD device might be slower because of the replication over the network. But it should contain a normal ext4 filesystem... Regards, rck ___ drbd-user mailing list drbd-user@lists.linbit.com http://lists.linbit.com/mailman/listinfo/drbd-user
[DRBD-user] format /dev/drbd0
Hello, I've seen in tutorial that we format the /dev/drbd0 block device (mkfs.ext4 /dev/drbd0). Should it give the same result as if we formatted the real device (for example /dev/sdb1) or are there any differences ? Thank you, ran ___ drbd-user mailing list drbd-user@lists.linbit.com http://lists.linbit.com/mailman/listinfo/drbd-user
