Re: [gentoo-user] Is it possible to mirror 2 drives, that are currently striped in LVM2?
Ow Mun Heng wrote: On Thu, 2005-07-07 at 17:50 +0200, Jakub Krajcovic wrote: Hi Guys, the subject says it all, but i'll go into more detail now, if anyone would be interested in helping. I currently have my system installed on 2 40GB IDE drives. They are in an LVM volumegroup, and the 2 drives are striped. What i need to do is transform this striped disk cluster into a mirror. (preferably using the most cheapest and painless method). I kind of know my way around LVM, so i don't really need a _totally_ detailed answer, but i need to know, if this that i am trying to accomplish is a) possible b) what are the steps that i should follow in order to do this? I was thinking like this: use pvmove or something to move all of the pv's from one disk to the other, then reduce the volumegroup (remove the disk eg physical volume from it) add it as a mirror... Seems to me the best way to do this would be a third Disk. Is this an option?? Personally, I'd just get two more disks and turn it into a RAID 0+1 setup. If you've got the space, the money and the Molex connectors, I'd go for it. Or just get one more disk, backup your data, create a three-drive RAID 5 volume and then copy it all back. RAID 0+1 would be easier to setup, require much less overhead and have more fault-tolerance than a three-disk RAID 5 setup. However, it's more expensive (you need two more disks instead of one more) and it's not as cool-sounding as RAID 5. :-P -- Colin -- gentoo-user@gentoo.org mailing list
[gentoo-user] Is it possible to mirror 2 drives, that are currently striped in LVM2?
Hi Guys, the subject says it all, but i'll go into more detail now, if anyone would be interested in helping. I currently have my system installed on 2 40GB IDE drives. They are in an LVM volumegroup, and the 2 drives are striped. What i need to do is transform this striped disk cluster into a mirror. (preferably using the most cheapest and painless method). I kind of know my way around LVM, so i don't really need a _totally_ detailed answer, but i need to know, if this that i am trying to accomplish is a) possible b) what are the steps that i should follow in order to do this? I was thinking like this: use pvmove or something to move all of the pv's from one disk to the other, then reduce the volumegroup (remove the disk eg physical volume from it) add it as a mirror... can someone confirm, if this is theright way to go, or if not, could anyone please suggest how i could accomplish this task... thanks jakub krajcovic -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Is it possible to mirror 2 drives, that are currently striped in LVM2?
On Thu, 2005-07-07 at 17:50 +0200, Jakub Krajcovic wrote: Hi Guys, the subject says it all, but i'll go into more detail now, if anyone would be interested in helping. I currently have my system installed on 2 40GB IDE drives. They are in an LVM volumegroup, and the 2 drives are striped. What i need to do is transform this striped disk cluster into a mirror. (preferably using the most cheapest and painless method). I kind of know my way around LVM, so i don't really need a _totally_ detailed answer, but i need to know, if this that i am trying to accomplish is a) possible b) what are the steps that i should follow in order to do this? I was thinking like this: use pvmove or something to move all of the pv's from one disk to the other, then reduce the volumegroup (remove the disk eg physical volume from it) add it as a mirror... Seems to me the best way to do this would be a third Disk. Is this an option?? -- Ow Mun Heng Gentoo/Linux on DELL D600 1.4Ghz 1.5GB RAM 98% Microsoft(tm) Free!! Neuromancer 13:46:15 up 21:42, 7 users, load average: 1.93, 1.68, 1.21 -- gentoo-user@gentoo.org mailing list
