Hi Allan/Jason,
I think Ill have a go at the "missing space" situation again after some reading up. Since I went with the default block sizes (on both the zvol and the ext4 fs) I probably have some reconfiguration to do.. Thank you very much for your feedback/directions! Kind regards, Ruben On 03/09/17 06:01, Allan Jude wrote: > On 2017-09-02 10:52, Ruben wrote: >> Hi Jason, >> >> >>> Make sure >>> you adjust the zvol block size in the default config before creating your >>> guest or you will wonder where your storage starts to disappear to. >>> >>> Cheers, >>> >>> Jason >> Perhaps slightly off-topic, but might you have any recommendations >> regarding those blocksizes? >> >> I'm not really that well versed in blocksizes / filesystems and am often >> wondering where my 5TB zvol (bhyves into an ext4 volume for an ubuntu >> guest) exactly disappears into :P >> >> Regards, >> >> Ruben >>> On 2 Sep 2017 2:46 p.m., "Dylan Williams" <free...@host852.com> wrote: >>> >>> Dear all, >>> >>> Is there a limit with respect to the size of the virtual drive I can create >>> for a VM using bhyve? Presumably not but I’m running into problems with a >>> larger drive. >>> >>> I am trying to create a 4T Ubuntu machine on a FreeBSD11.1 server using >>> iohyve. There’s plenty of drive space available so it’s not a drive space >>> issue. I am able to create a 40G machine without any problems but exactly >>> the same commands to create a 4000G machine results in a server that won’t >>> boot past Grub. Is this an iohyve issue perhaps? >>> >>> Commands used that results in a working Ubuntu server: >>> >>> iohyve create ubu 40G >>> iohyve set ubu loader=grub-bhyve os=debian ram=40G cpu=10 >>> iohyve install ubu ubuntu-16.04.3-server-amd64.iso < >>> ftp://ftp.cuhk.edu.hk/pub/Linux/ubuntu-releases/16.04.3/ >>> ubuntu-16.04.3-server-amd64.iso> >>> >>> Commands used that results in a broken Ubuntu server: >>> >>> iohyve create ubu 4000G >>> iohyve set ubu loader=grub-bhyve os=debian ram=40G cpu=10 >>> iohyve install ubu ubuntu-16.04.3-server-amd64.iso < >>> ftp://ftp.cuhk.edu.hk/pub/Linux/ubuntu-releases/16.04.3/ >>> ubuntu-16.04.3-server-amd64.iso> >>> >>> The screen I get in the console when I boot (iohyve start ubu) the 4T >>> machine is: >>> >>> GNU GRUB version 2.00 >>> >>> Minimal BASH-like line editing is supported. For the first word, TAB >>> lists possible command completions. Anywhere else TAB lists possible >>> device or file completions. >>> >>> >>> grub> >>> >>> Does anyone have any ideas? I’ve been at this for hours trying different >>> configurations. LVM is not selected when installing either of the above >>> machines as that seems to cause more problems. >>> >>> Many thanks, >>> Dylan. >>> _______________________________________________ >>> freebsd-virtualization@freebsd.org mailing list >>> https://lists.freebsd.org/mailman/listinfo/freebsd-virtualization >>> To unsubscribe, send any mail to "freebsd-virtualization- >>> unsubscr...@freebsd.org" >>> _______________________________________________ >>> freebsd-virtualization@freebsd.org mailing list >>> https://lists.freebsd.org/mailman/listinfo/freebsd-virtualization >>> To unsubscribe, send any mail to >>> "freebsd-virtualization-unsubscr...@freebsd.org" >> _______________________________________________ >> freebsd-virtualization@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-virtualization >> To unsubscribe, send any mail to >> "freebsd-virtualization-unsubscr...@freebsd.org" >> > To understand why space in a ZVOL goes missing, research 'raidz padding'. > > See here: > https://www.delphix.com/blog/delphix-engineering/zfs-raidz-stripe-width-or-how-i-learned-stop-worrying-and-love-raidz > > For more detail, see Chapter 9 of "FreeBSD Mastery: Advanced ZFS" from > http://www.zfsbook.com > > _______________________________________________ freebsd-virtualization@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-virtualization To unsubscribe, send any mail to "freebsd-virtualization-unsubscr...@freebsd.org"
