On Wed, Nov 02, 2016 at 09:58:41AM +0100, Christian Völker wrote: > Hi all, > > I am using btrfs as follows: > root@srv:/srv# btrfs filesystem show > Label: none uuid: c8f24351-ddc4-4866-843c-4e95fcb498d4 > Total devices 2 FS bytes used 1005.37GB > devid 2 size 1.00TB used 1023.98GB path /dev/sdc > devid 1 size 1.46TB used 1.00TB path /dev/sdb > > Btrfs Btrfs v0.19
That's positively antique. If your kernel is anything close to the same age, this experience with btrfs is probably going to be extremely painful for you. > It is running inside a virtual machines running on VMware ESXi. I > increased both virtual disks to 1.5TB now. I did a scsi-rescan and fdisk > -l tells me the new size: > Disk /dev/sdb: 1610.6 GB, 1610612736000 bytes > Disk /dev/sdc: 1610.6 GB, 1610612736000 bytes > > There are no partitions created on the disks, just raw devices used for > BTRFS. I found several sites where they resized a btrfs filesystem based > on LVM and the new size was immediately recognized. But how to do on raw > partitions? Than those sites are mistaken. :) > How do I tell btrfs the devices have been resized? > I did not find a rescan command. btrfs scan does not change anything. > Do I really have to reboot? btrfs fi resize <devid>:max /mountpoint btrfs dev scan is just used to tell the kernel which devices contain [parts of] which btrfs filesystems. Hugo. -- Hugo Mills | In one respect at least, the Martians are a happy hugo@... carfax.org.uk | people: they have no lawyers http://carfax.org.uk/ | PGP: E2AB1DE4 | John Carter, A Princess of Mars
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