Re: Rebuilding a Raid 1
"Ian Stakenvicius, Aerobiology Research" <[email protected]> Sat, 18 May 2013 09:04:05 -0400
| Newsgroups | gmane.linux.ataraid |
|---|---|
| Message-ID | <[email protected]> |
--===============4817296983179657411== Content-Type: multipart/alternative; boundary=Apple-Mail-22EA9F47-8755-4314-8E2B-A42B573FDA5A Content-Transfer-Encoding: 7bit --Apple-Mail-22EA9F47-8755-4314-8E2B-A42B573FDA5A Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable A small bit of terminology difference is being used, I think. Traditionally= : hardware raid: raid cards that handle all HDD io independently. Bios raid / fake raid: what dmraid is meant for (or mdraid, for isw) software raid: pure software/kernel solution; using mdraid. now, as for booting -- as far as I know the only way to boot a full raid0 sy= stem is to use biosraid, since the bios cannot assemble the striped drives o= f a mdraid-0 in order to load the bootloader or kernel. yes this is probabl= y a rare config (i would never run it) but if someone so chose, dmraid would= be the tool for this job. On 2013-05-18, at 6:00 AM, Danny <[email protected]> wrote: > You can boot from mdadm fake RAID and it is far superior in terms of featu= res and support/maintenence and the performance is the same. So anyone with a= pure linux install would be better off in mdadm. >=20 >=20 > On Fri, May 17, 2013 at 8:54 PM, Kristian Rasmussen <kristian.rasmussen@br= oadpark.no> wrote: >> On 17.05.2013 20:10, Danny wrote: >> > The problem with dmraid is that the only people who use it are dual boo= ting >> > windows, >> Or anybody who wants to boot from fakeRAID. >>=20 >> _______________________________________________ >> Ataraid-list mailing list >> [email protected] >> https://www.redhat.com/mailman/listinfo/ataraid-list >=20 > _______________________________________________ > Ataraid-list mailing list > [email protected] > https://www.redhat.com/mailman/listinfo/ataraid-list --Apple-Mail-22EA9F47-8755-4314-8E2B-A42B573FDA5A Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D= utf-8"></head><body dir=3D"auto"><div><br>A small bit of terminology differe= nce is being used, I think. Traditionally:</div><div><br></div><div>ha= rdware raid: raid cards that handle all HDD io independently.</div><di= v><br></div><div>Bios raid / fake raid: what dmraid is meant for (or m= draid, for isw)</div><div><br></div><div>software raid: pure software/kernel= solution; using mdraid.</div><div><br></div><div>now, as for booting -- as f= ar as I know the only way to boot a full raid0 system is to use biosraid, si= nce the bios cannot assemble the striped drives of a mdraid-0 in order to lo= ad the bootloader or kernel. yes this is probably a rare config (i wou= ld never run it) but if someone so chose, dmraid would be the tool for this j= ob.</div><div><br></div><div><br>On 2013-05-18, at 6:00 AM, Danny <<a hre= f=3D"mailto:[email protected]">[email protected]</a>> wrote:<br><br><= /div><blockquote type=3D"cite"><div><div dir=3D"ltr"><div>You can boot from m= dadm fake RAID and it is far superior in terms of features and support/maint= enence and the performance is the same. So anyone with a pure linux install w= ould be better off in mdadm.<br> </div></div><div class=3D"gmail_extra"><br><br><div class=3D"gmail_quote">On= Fri, May 17, 2013 at 8:54 PM, Kristian Rasmussen <span dir=3D"ltr"><<a h= ref=3D"mailto:[email protected]" target=3D"_blank">kristian.ra= [email protected]</a>></span> wrote:<br> <blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px= #ccc solid;padding-left:1ex"><div class=3D"im">On 17.05.2013 20:10, Danny w= rote:<br> > The problem with dmraid is that the only people who use it are dual boo= ting<br> > windows,<br> </div>Or anybody who wants to boot from fakeRAID.<br> <div class=3D"HOEnZb"><div class=3D"h5"><br> _______________________________________________<br> Ataraid-list mailing list<br> <a href=3D"mailto:[email protected]">[email protected]</a><br> <a href=3D"https://www.redhat.com/mailman/listinfo/ataraid-list" target=3D"_= blank">https://www.redhat.com/mailman/listinfo/ataraid-list</a><br> </div></div></blockquote></div><br></div> </div></blockquote><blockquote type=3D"cite"><div><span>____________________= ___________________________</span><br><span>Ataraid-list mailing list</span>= <br><span><a href=3D"mailto:[email protected]">[email protected]= </a></span><br><span><a href=3D"https://www.redhat.com/mailman/listinfo/atar= aid-list">https://www.redhat.com/mailman/listinfo/ataraid-list</a></span></d= iv></blockquote></body></html>= --Apple-Mail-22EA9F47-8755-4314-8E2B-A42B573FDA5A-- --===============4817296983179657411== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Ataraid-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/ataraid-list --===============4817296983179657411==--