Date: Wed, 04 Oct 2017 21:05:10 +0200 From: Harry Schmalzbauer <freebsd@omnilan.de> To: freebsd-scsi@freebsd.org Subject: Re: ZFS prefers iSCSI disks over local ones ? Message-ID: <59D530E6.6090506@omnilan.de> In-Reply-To: <20171003172857.2497b931@mwoffice.virtualtec.office> References: <4A0E9EB8-57EA-4E76-9D7E-3E344B2037D2@gmail.com> <feff135a-3175-c5d0-eeb4-5639bb76789e@FreeBSD.org> <69fbca90-9a18-ad5d-a2f7-ad527d79f8ba@freebsd.org> <9342D2A7-CE29-445B-9C40-7B6A9C960D59@gmail.com> <caa120ab-5b88-8602-45b6-1fbbea9ad194@multiplay.co.uk> <A0EA3117-A40A-4163-AF84-76A08ABBFE4A@gmail.com> <49ADB654-E68B-4B88-AE8E-49F755092848@gmail.com> <20171003172857.2497b931@mwoffice.virtualtec.office>
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Bezüglich Markus Wild's Nachricht vom 03.10.2017 17:28 (localtime):
>>> Any way however to set rotationrate to 7200 (or to a slightly greater value (*)) as well for iSCSI drives ?
>>> I looked through ctl.conf(5) and iscsi.conf(5) but did not found anything related.
>> Sorry, (*) or to a slightly lower value (of course...).
>> I forgot to mention that as the initiator, target is a FreeBSD 11.0 server.
> We use this in our ctl.conf to ensure vmware doesn't consider the iscsi volumes to be ssd drives:
>
> [...]
> lun 1 { path /dev/zvol/data/volumes/zvol1 ; option rpm 10000 }
mav@ also added the formfactor option in r273687, which is configurable
via ctl.conf(5) and documented in ctladm(8).
Another not very well knwon option is "product".
This is significant for WindowsServerBackup e.g.
A ctl.conf(5) LUN specification example I generally use:
lun 0 {
# blocksize 4096 doesn't work for WSB2008, vhdx is prerequisite (2012+)!
blocksize 4096
device-id "da5"
option vendor "FreeBSD-ctl"
option product "BackVOL15-1"
# RPM 0=not reported, 1=non-rotating(SSD), n>1024 rpm
option rpm 7200
# FormFactor 0=not reported, 1=5.25, 2=3.5, 3=2.5, 4=1.8, 5=less 1.8
inch
option formfactor 2
path /dev/da5
serial "10000001"
}
-harry
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