On 05/09/07, Denis Melnikov <<a href="mailto:dmelnik@regent.ru">dmelnik@regent.ru</a>> wrote:<div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> > I managed to get RAID working partially. It took me a while > to figure out how to do it. > RAID doesn't come up as an option on the initial screen, so I > thought I would document what I did for others who wonder how > to access the RAID function from the installer. > > 1. I got to the partition stage of the installation (on the > standard install). > 2. For each of my 4 disks I created a partition. > 3. I selected each parttion one by one and set it as physical > partition for RAID. > Once the disks are assigned as RAID, the setup RAID option > appears on the main screen. > 4. Select Setup RAID, > 5. Assign RAID 1 to the first two drives, with on spare. > 6. Do the same for the next pair of drives. > At this point it is possible to set up LVM. But I want to do > RAID 0 on the 2 RAID 1 devices. > It doesn't seem possible to do this from the installation > partition manager. > > How can I take my pairs of RAID1s and make them into RAID10? > Can I continue the installation setting up LVM one of the > RAID1s then once the system is setup run mdadm to make a > raid0 out of the two raid pairs? Yes. You can make up a volume of several partitions including RAID ones. Make sure you have /boot on a separate RAID1 partition, because GRUB cannot load from LVM prepared one. </blockquote><div> OK. So I should make 2 partitions on each disk. One small one for /boot which can be RAID1 with 2 spares. The other partition would be as previously described. 2 Raid1 pairs striped into one RAID10 Drive. </div> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">> Or is there a better way? Can you make a RAID partition for RAID0 over previously prepared RAID1 partition? Unfortunately, I cannot try it now. Denis > I was thinking of setting up one 320GB RAID10 drive with one > LV and using the guided partitioning within the LV. Would > that be a reasonable approach?</blockquote><div>Actually it would be a 640GB drive because RAID 0 usage space on both disks.  </div> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> > > Thanks, > Krsnendu dasa > > > On 26/08/07, Scott Balneaves <<a href="mailto:sbalneav@legalaid.mb.ca">sbalneav@legalaid.mb.ca</a>> wrote: > On Sat, Aug 25, 2007 at 12:35:38PM -0700, Joe Rowe wrote: > > > > Like myself, > > More and more people are using Edubuntu or Ubuntu > > servers or critical workstations with inadequate plans for > Disk failure. > > > > > > Anyone, > > Please reply if you have done software RAID on Ubuntu/Edubuntu > > and you are good at documenting steps by step tips. > > I've done software raid for years and years.  It's pretty > easy, and just > required doing a bit of reading and understanding.  The > O'Reilly "Managing Raid > on Linux" is an excellent book on the subject. > > Scott > > -- > Scott L. Balneaves | "Eternity is a very long time, > Systems Department |  especially towards the end." > Legal Aid Manitoba |    -- Woody Allen -- edubuntu-users mailing list <a href="mailto:edubuntu-users@lists.ubuntu.com">edubuntu-users@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/edubuntu-users">https://lists.ubuntu.com/mailman/listinfo/edubuntu-users </a> </blockquote></div>