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Beso wrote: |
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> i'd like to commute my laptop system to lvm2, but before doing that |
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> i'd like some hints. |
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> first, i'd like to know if there's a way of passing an existing gentoo |
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> installation on a hda disk going through the sda stack (i needed to do |
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> that cause it was the only thing that fixed a problem with my ata disk |
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> going only on udma-33 after kernel 2.20) with sata-pata piix |
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> controller which is still experimental. i've taken a look around but |
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> haven't actually seen a document explaining if it is possible to do |
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> that and how to do that. |
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> second, i'd like to know if there's a need for a raid enabled |
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> motherboard and more than one disk to go on lvm. i only have a 100gb |
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> disk that i'd like to convert to lvm with no raid. |
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> and last, does it make sense doing a passage to lvm? i currently run |
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> into some problems with my root partition that gets filled and that i |
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> always have to watch the free space on it, so if i don't pass to raid |
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> i'll try to duplicate the partition on a greater one. |
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> i was forgetting: i'd like to use it on amd64. is there any problem? i |
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> have seen around some problems with lvm and amd64 some of them marked |
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> as solved, so i'd like to know if there could be problems with this arch. |
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> thanks for your help. |
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> |
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> -- |
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> dott. ing. beso |
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Here's my $0.02. LVM is great is you need better fault tolerance. i.e. |
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a RAID setup. I have LVM volumes on our SAN (20TB or so @ RAID 5) and I |
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have less trouble out of it than a couple of RAID systems I have that |
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are straight xfs. That said I do not know about the first part, I've |
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never tried it. For the second part, a RAID enabled MB would be fine if |
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you plan on going RAID at some point. I don't normally get my RAID on |
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the motherboard simply because I have more control over what controller |
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to put in the system to make sure it's compatible with various flavors |
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of linux. I run LVM at home in a RAID5 config and I've had to extend / |
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a couple of times, so it is beneficial in that respect. You can do that |
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as well with xfs or a clustered fs (like gfs from RH), but LVMs seem to |
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be a little more painless in my experience. |
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|
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I run almost exclusively 64-bit systems and distros from *BSD to SuSE to |
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Fedora (and gentoo) and I've never seen any problem at all with LVM in a |
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64-bit environment. My SAN runs on a dual opteron box and it handles |
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2TB of data a day with no trouble out of LVM. |
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HTH. |
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-- |
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Mark Haney |
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Sr. Systems Administrator |
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ERC Broadband |
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-- |
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