Dne 25.1.2011 15:53, Carlos Mennens napsal(a): > I've got 4 identical 1 TB drives and would like to use them in a > software RAID configuration on my home server. I'm running Debian > Linux using 'mdadm' utility to manage the software RAID. I don't know > how much I've read is fact or dated or even false so I decided I would > ask here to get help from people who know more about this than I do. > This is essentially just a file server machine to store all my data so > being that I've got four identical SATA hard drives, I was thinking > about doing RAID level 5. I guess I'll start here and ask if that is > the recommended level of RAID. I think RAID level 5 will be fine for > my general server usage. My second issue is partitioning the four > individual drives to get maximum performance / space from them. > Basically just asking here how would you or you recommend I partition > the drives? I was thinking about doing three seperate partitions per > drive: > > /dev/sda1 = 4 GB (swap) > /dev/sda2 = 1 GB (/boot) > /dev/sda3 = 995 GB (/) > > Now from that partition schema above, obviously all the types will be > 'fd' for RAID and the partition for /boot is going to be bootable. My > confusion is that I read Grub doesn't support booting from RAID 5 > since Grub can't handle disk assembly. If /dev/sdx2 (sda2, sdb2, sdc2, > sdd2) are partitioned for /boot (bootable), how would you guys > configure this RAID to match up equally? I don't think I do a RAID > level 1 on 4 identical partitions, right? Can anyone please help and > tell me how I should configure these 4 identical drives to work on my > system? How would you set this up? > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html You can use RAID1 with 2+ drives without any problems. sd[a-d]1 /boot (128MB?, RAID1) - metadata 0.90 for GRUB compatibility sd[a-d]2 / (2GB?, RAID10) - for better system maintenance sd[a-d]3 swap (2GB?, RAID10) - for high availability sd[a-d]4 /data (REST, RAID5) Since you mentioned Debian, wait with new installation for new version (around february). HTH, Z. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
