Am Do, den 20.05.2004 schrieb Jack Howarth um 15:41: > I have some questions regarding the proper way to > set up a software RAID 1 mirror under Fedora on two > identical SATA drives using the installation tools. > In particular I am seeking to create a complete > RAID 1 mirror so that if the main drive fails I can > simply move it out and reboot under the mirror. > What I am unclear on is how should I partition the > two drives and how these partitions are related > in the software RAID 1 mirror. http://www.redhat.com/docs/manuals/linux/RHL-9-Manual/install-guide/s1-diskpartitioning.html Just create first the software RAID partitions you like with the size you prefer, as just a rough example /boot = 100MB on sda and sdb, / = 4GB an both drives and swap = 512MB on both drives. Then in a second step create the RAID1 arrays from both drive's partitions. From my example choose the partitions you made for /boot on sda and sdb and set them as RAID1 array. Do that with the others too. > My first inclination is to use DiskDruid in the > installer to create identical sized partitions on > both SATA drives (three partitions each... > /boot, / and /swap). Of these I would only place the > partitions for /boot and / in the RAID. My rational > for this is that there is no point in mirroring the > /swap partition. If you really want to have swap as RAID1 mirror too, that is possible through Disk Druid. > Assuming this approach is correct, I am still > unclear on how the software RAID 1 mirror knows > which partitions on each drive to map to each other? The information is stored creating the RAID arrays. A map is to be found as /etc/raidtab, telling you which drive's partitions are building an array. > Does it just try to grossly map them by size and > do they have to be of identical size on both > drives of the RAID 1 or just bigger on ther mirror? > Thanks in advance for any clarifications. > Jack http://www.redhat.com/docs/manuals/linux/RHL-9-Manual/custom-guide/ch-raid-intro.html Alexander -- Alexander Dalloz | Enger, Germany | GPG key 1024D/ED695653 1999-07-13 Fedora GNU/Linux Core 1 (Yarrow) on Athlon CPU kernel 2.4.22-1.2188.nptl Sirendipity 16:09:28 up 7 days, 13:54, load average: 0.72, 0.42, 0.30 [ ÎÎÏÎÎ Ï'ÎÏÏÎÎ - gnothi seauton ] my life is a planetarium - and you are the stars
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