Date: Mon, 13 May 2019 13:58:32 +0000 From: bugzilla-noreply@freebsd.org To: fs@FreeBSD.org Subject: [Bug 237807] ZFS: ZVOL writes fast, ZVOL reads abysmal... Message-ID: <bug-237807-3630-wvnf2p47Nv@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-237807-3630@https.bugs.freebsd.org/bugzilla/> References: <bug-237807-3630@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D237807 --- Comment #7 from Nils Beyer <nbe@renzel.net> --- (In reply to crest from comment #6) the ZVOLs are used for ReFS-formatted (64kB cluster size) Veeam backup repositories connected via iSCSI and 10GBit: =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D morsleben-grube2/dshyp02-veeam type volume = - morsleben-grube2/dshyp02-veeam creation Fri Mar 29 11:01 2019= - morsleben-grube2/dshyp02-veeam used 40.2T = - morsleben-grube2/dshyp02-veeam available 12.8T = - morsleben-grube2/dshyp02-veeam referenced 30.4T = - morsleben-grube2/dshyp02-veeam compressratio 1.00x = - morsleben-grube2/dshyp02-veeam reservation none=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20 default morsleben-grube2/dshyp02-veeam volsize 40T=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20 local morsleben-grube2/dshyp02-veeam volblocksize 64K = - morsleben-grube2/dshyp02-veeam checksum on=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20 default morsleben-grube2/dshyp02-veeam compression lz4=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20 inherited from morsleben-grube2 morsleben-grube2/dshyp02-veeam readonly off=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20 default morsleben-grube2/dshyp02-veeam createtxg 76 = - morsleben-grube2/dshyp02-veeam copies 1=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 default morsleben-grube2/dshyp02-veeam refreservation 40.2T=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20 local morsleben-grube2/dshyp02-veeam guid 10198386066639651165 = - morsleben-grube2/dshyp02-veeam primarycache metadata=20=20=20=20= =20=20=20=20=20=20=20=20=20=20 local morsleben-grube2/dshyp02-veeam secondarycache none=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20 local morsleben-grube2/dshyp02-veeam usedbysnapshots 0 = - morsleben-grube2/dshyp02-veeam usedbydataset 30.4T = - morsleben-grube2/dshyp02-veeam usedbychildren 0 = - morsleben-grube2/dshyp02-veeam usedbyrefreservation 9.78T = - morsleben-grube2/dshyp02-veeam logbias latency=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20 default morsleben-grube2/dshyp02-veeam dedup off=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20 default morsleben-grube2/dshyp02-veeam mlslabel = - morsleben-grube2/dshyp02-veeam sync standard=20=20=20=20= =20=20=20=20=20=20=20=20=20=20 default morsleben-grube2/dshyp02-veeam refcompressratio 1.00x = - morsleben-grube2/dshyp02-veeam written 30.4T = - morsleben-grube2/dshyp02-veeam logicalused 30.5T = - morsleben-grube2/dshyp02-veeam logicalreferenced 30.5T = - morsleben-grube2/dshyp02-veeam volmode default=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20 default morsleben-grube2/dshyp02-veeam snapshot_limit none=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20 default morsleben-grube2/dshyp02-veeam snapshot_count none=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20 default morsleben-grube2/dshyp02-veeam redundant_metadata all=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20 default =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D Using CTL as the iSCSI target (4k blocksize) for the Windows Server 2016 ho= sts: =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D lun 0 { path /dev/zvol/morsleben-grube2/dshyp02-veeam blocksize 4k } =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D Nothing else besides "ctld" is running on the storage system... --=20 You are receiving this mail because: You are the assignee for the bug.=
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