Date: Wed, 17 Aug 2016 10:04:10 -0600 From: Warner Losh <imp@bsdimp.com> To: =?UTF-8?Q?Dag=2DErling_Sm=C3=B8rgrav?= <des@des.no> Cc: Nathan Whitehorn <nwhitehorn@freebsd.org>, src-committers <src-committers@freebsd.org>, "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, "svn-src-head@freebsd.org" <svn-src-head@freebsd.org> Subject: Re: svn commit: r304142 - head/usr.sbin/bsdinstall/partedit Message-ID: <CANCZdfoU-UeO=64xVpmLa=q_6LXS42smBzP1taU6WFt=o_LvYQ@mail.gmail.com> In-Reply-To: <86k2ff4cxs.fsf@desk.des.no> References: <201608150930.u7F9UL1V069576@repo.freebsd.org> <e3454e8e-5d98-5bec-21de-8ea0db2b9b08@freebsd.org> <861t1n6749.fsf@desk.des.no> <581c856c-826b-529e-c9c6-a397fb679708@freebsd.org> <86wpjf4eun.fsf@desk.des.no> <8cb3fa1a-50cb-e238-d006-b98a628d446d@freebsd.org> <86k2ff4cxs.fsf@desk.des.no>
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On Wed, Aug 17, 2016 at 9:45 AM, Dag-Erling Sm=C3=B8rgrav <des@des.no> wrot= e: > Nathan Whitehorn <nwhitehorn@freebsd.org> writes: >> Dag-Erling Sm=C3=B8rgrav <des@des.no> writes: >> > I have mentioned several examples to you, and even told you how to >> > confirm, by inspecting the source code, that most drivers do *not* >> > set the stripe size. >> Most drivers? Yes, sure. Most drivers that people use? No. > > Every. Single. Dell. Server. > > Probably every single HP server as well, I haven't checked. > > VirtualBox gets it wrong. Xen gets it wrong. I believe KVM (including > RHEV) and VMWare get it wrong too, but haven't been able to verify. > > I guess those aren't important to you? Also, SD cards get it wrong. It is reported, true enough, but it is often wrong in the sense it can be suboptimal. Different SD cards report different things for the number of sectors to erase at a time. Some vendors do an excellent job of reporting the optimal amount. Others do not (often because the Warner
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