-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > Beso wrote: >> second, i'd like to know if there's a need for a raid enabled >> motherboard and more than one disk to go on lvm. i only have a 100gb >> disk that i'd like to convert to lvm with no raid.
I recommend using software RAID unless you go all the way and get one of those really fancy (expensive) RAID cards. Honestly, software RAID has some advantages over even the expensive setups, although a few disadvantages as well. I definitely wouldn't use the RAID built-into a motherboard - it is effectively software RAID anyway and you're tossing the flexibility of linux software RAID. And LVM works fine without RAID - I've used it that way without issue at all. Of course, you have no protection so if you have a partition split across two disks without RAID you lose data no matter which drive fails. LVM is all about taking one pool of block devices and chopping it up into a different pool of block devices - that's all. You could run LVM2 on a floppy disk, on a USB drive, or whatever. You could use LVM2 to combine a floopy disk, an mp3-player, and a USB flash drive into a single storage pool and then split it into a whole bunch of read-only partitions. It really has nothing to do with RAID other than the fact that a RAID gives you one really big block device that is inconvenient to use on its own. One thing I haven't done is run boot/root on LVM2 - you might want to look into that. It might work with a initrd - I never bothered with those so I keep it simple. Besides, I keep little to nothing on my 1GB root partition so it never fills up (root only contains /bin, /sbin, /root, /lib, and /etc). >> and last, does it make sense doing a passage to lvm? i currently run >> into some problems with my root partition that gets filled and that i >> always have to watch the free space on it, so if i don't pass to raid >> i'll try to duplicate the partition on a greater one. I'd recommend lvm for anybody doing anything at all. It gives you a whole lot more flexibility with your disk space. If all your data is on lvm and you want to add a raid later, or just add some new non-raid drives, moving your data around becomes trivial (even with the system running in full production). Growing and shrinking partitions is trivial as long as your filesystem supports it (I tend to use ext3 for this reason - I don't think anything else supports both growing and shrinking). >> i was forgetting: i'd like to use it on amd64. is there any problem? i >> have seen around some problems with lvm and amd64 some of them marked >> as solved, so i'd like to know if there could be problems with this arch. >> thanks for your help. Maybe in the early dawns of time there were problems with lvm and amd64, but I haven't experienced them. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHD1KnG4/rWKZmVWkRAmowAJ9zk0Y71XPxfnopJY2El45nu5GpXgCgldZg SiSjzsVfBCcDwy5UtE6Cj1I= =CPm6 -----END PGP SIGNATURE-----
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