Date: Mon, 14 May 2018 18:10:01 +0200 From: =?ISO-8859-1?Q?Karli_Sj=F6berg?= <karli@inparadise.se> To: freebsd-fs@freebsd.org, Paul Esson <paul.esson@redstor.com>, "freebsd-fs@freebsd.org" <freebsd-fs@freebsd.org> Subject: Re: Releasing deleted blocks from a sparse ZVOL Message-ID: <FCD89CD5-B86F-41EB-A30B-6ABF67D4630A@inparadise.se> In-Reply-To: <AM5PR0102MB2578E94BA1F8894339FEB93C9E9C0@AM5PR0102MB2578.eurprd01.prod.exchangelabs.com> References: <AM5PR0102MB2578E94BA1F8894339FEB93C9E9C0@AM5PR0102MB2578.eurprd01.prod.exchangelabs.com>
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Paul Esson <paul=2Eesson@redstor=2Ecom> skrev: (14 maj 2018 17:35:21 CEST) >Hi Folks, > >I'm attempting to use a sparse ZVOL from a FreeBSD 11=2E1-RELEASE host as >a data disk for a bhyve FreeBSD 11=2E1-RELEASE guest that in turn uses >this device as the source for a ZFS filesystem=2E When I delete data >from the filesystem on the guest this is reflected in its used space, >but not in the ZVOL on the host=2E I've read suggestions that the use of >a block driver that supports TRIM or SCSi unmap is crucial such as >virtio-scsi, but from what I can tell my vm-bhyve implementation is >using virtio - certainly the disk1_type parameter in the configuration >file has a value of "virtio-blk"=2E Hey! Can't help you with changing the driver, I'll just state the obvious that = since it's called SCSI unmap, of course you need virtio-scsi in order for i= t to work:) Good luck with it! /K > >Can anyone confirm this is indeed the issue and whether it is possible >to switch to the relevant driver? Or am I barking up the wrong tree >altogether? > >Host ZFS Filesystem > >NAME PROPERTY VALUE SOURCE >dc1-hn-01 type filesystem - >dc1-hn-01 creation Mon Apr 23 14:35 2018 - >dc1-hn-01 used 36=2E7G - >dc1-hn-01 available 78=2E2T - >dc1-hn-01 referenced 201K - >dc1-hn-01 compressratio 1=2E00x - >dc1-hn-01 mounted yes - >dc1-hn-01 quota none default >dc1-hn-01 reservation none default >dc1-hn-01 recordsize 128K default >dc1-hn-01 mountpoint /export/data/dc1-hn-01 local >dc1-hn-01 sharenfs off default >dc1-hn-01 checksum on default >dc1-hn-01 compression off default >dc1-hn-01 atime on default >dc1-hn-01 devices on default >dc1-hn-01 exec on default >dc1-hn-01 setuid on default >dc1-hn-01 readonly off default >dc1-hn-01 jailed off default >dc1-hn-01 snapdir hidden default >dc1-hn-01 aclmode discard default >dc1-hn-01 aclinherit restricted default >dc1-hn-01 canmount on default >dc1-hn-01 xattr off temporary >dc1-hn-01 copies 1 default >dc1-hn-01 version 5 - >dc1-hn-01 utf8only off - >dc1-hn-01 normalization none - >dc1-hn-01 casesensitivity sensitive - >dc1-hn-01 vscan off default >dc1-hn-01 nbmand off default >dc1-hn-01 sharesmb off default >dc1-hn-01 refquota none default >dc1-hn-01 refreservation none default >dc1-hn-01 primarycache all default >dc1-hn-01 secondarycache all default >dc1-hn-01 usedbysnapshots 0 - >dc1-hn-01 usedbydataset 201K - >dc1-hn-01 usedbychildren 36=2E7G - >dc1-hn-01 usedbyrefreservation 0 - >dc1-hn-01 logbias latency default >dc1-hn-01 dedup off default >dc1-hn-01 mlslabel - >dc1-hn-01 sync standard default >dc1-hn-01 refcompressratio 1=2E00x - >dc1-hn-01 written 201K - >dc1-hn-01 logicalused 4=2E12G - >dc1-hn-01 logicalreferenced 36=2E5K - >dc1-hn-01 volmode default default >dc1-hn-01 filesystem_limit none default >dc1-hn-01 snapshot_limit none default >dc1-hn-01 filesystem_count none default >dc1-hn-01 snapshot_count none default >dc1-hn-01 redundant_metadata all default > > >Host ZFS volume - used by vm-bhyve guest > >NAME PROPERTY VALUE =20 > SOURCE >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 type volume =20 > - >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 creation Wed May 2 >14:06 2018 - >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 used 4=2E70G = =20 > - >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 available 78=2E2T = =20 > - >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 referenced 4=2E70G = =20 > - >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 compressratio 1=2E00x = =20 > - >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 reservation none =20 > default >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 volsize 28T =20 > local >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 volblocksize 8K =20 > - >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 checksum on =20 > default >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 compression off =20 > default >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 readonly off =20 > default >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 copies 1 =20 > default >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 refreservation none =20 > default >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 primarycache all =20 > default >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 secondarycache all =20 > default >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 usedbysnapshots 0 =20 > - >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 usedbydataset 4=2E70G = =20 > - >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 usedbychildren 0 =20 > - >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 usedbyrefreservation 0 =20 > - >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 logbias latency =20 > default >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 dedup off =20 > default >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 mlslabel =20 > - >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 sync standard =20 > default >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 refcompressratio 1=2E00x = =20 > - >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 written 4=2E70G = =20 > - >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 logicalused 2=2E06G = =20 > - >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 logicalreferenced 2=2E06G = =20 > - >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 volmode dev =20 > local >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 snapshot_limit none =20 > default >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 snapshot_count none =20 > default >dc1-hn-01/vm/dc1-olbp-sn-11/disk1 redundant_metadata all =20 > default > >Guest ZFS Filesystem > >NAME PROPERTY VALUE SOURCE >dc1-sn-11 type filesystem - >dc1-sn-11 creation Wed May 2 15:49 2018 - >dc1-sn-11 used 752K - >dc1-sn-11 available 26=2E9T - >dc1-sn-11 referenced 176K - >dc1-sn-11 compressratio 1=2E00x - >dc1-sn-11 mounted yes - >dc1-sn-11 quota none default >dc1-sn-11 reservation none default >dc1-sn-11 recordsize 128K default >dc1-sn-11 mountpoint /export/data/dc1-sn-11 local >dc1-sn-11 sharenfs off default >dc1-sn-11 checksum on default >dc1-sn-11 compression off default >dc1-sn-11 atime on default >dc1-sn-11 devices on default >dc1-sn-11 exec on default >dc1-sn-11 setuid on default >dc1-sn-11 readonly off default >dc1-sn-11 jailed off default >dc1-sn-11 snapdir hidden default >dc1-sn-11 aclmode discard default >dc1-sn-11 aclinherit restricted default >dc1-sn-11 canmount on default >dc1-sn-11 xattr off temporary >dc1-sn-11 copies 1 default >dc1-sn-11 version 5 - >dc1-sn-11 utf8only off - >dc1-sn-11 normalization none - >dc1-sn-11 casesensitivity sensitive - >dc1-sn-11 vscan off default >dc1-sn-11 nbmand off default >dc1-sn-11 sharesmb off default >dc1-sn-11 refquota none default >dc1-sn-11 refreservation none default >dc1-sn-11 primarycache all default >dc1-sn-11 secondarycache all default >dc1-sn-11 usedbysnapshots 0 - >dc1-sn-11 usedbydataset 176K - >dc1-sn-11 usedbychildren 576K - >dc1-sn-11 usedbyrefreservation 0 - >dc1-sn-11 logbias latency default >dc1-sn-11 dedup off default >dc1-sn-11 mlslabel - >dc1-sn-11 sync standard default >dc1-sn-11 refcompressratio 1=2E00x - >dc1-sn-11 written 176K - >dc1-sn-11 logicalused 153K - >dc1-sn-11 logicalreferenced 55K - >dc1-sn-11 volmode default default >dc1-sn-11 filesystem_limit none default >dc1-sn-11 snapshot_limit none default >dc1-sn-11 filesystem_count none default >dc1-sn-11 snapshot_count none default >dc1-sn-11 redundant_metadata all default > > >Regards, > >Paul Esson | Redstor Limited >e paul=2Eesson@redstor=2Ecom<mailto:paul=2Eesson@redstor=2Ecom> > > > >_______________________________________________ >freebsd-fs@freebsd=2Eorg mailing list >https://lists=2Efreebsd=2Eorg/mailman/listinfo/freebsd-fs >To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd=2Eorg" --=20 Skickat fr=C3=A5n min Android-enhet med K-9 Mail=2E Urs=C3=A4kta min f=C3= =A5ordighet=2E
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