On Thu, Oct 18, 2007 at 01:39:21PM +0200, Martin Marcher wrote: > 2007/10/18, Andy Smith <[EMAIL PROTECTED]>: > > On Wed, Oct 17, 2007 at 08:53:09PM +1000, Alex Samad wrote: > > > Interesting, I have a habit though of keeping root out of LVM, > > > very easy to get access to root in emergency when its a raid1 > > > parition > > > > Agree. > > Only partly, with a somewhat recent boot CD you won't have any > problems mounting LVM on RAID or doing the necessary recovery tasks. > The debian Etch (even netinst iirc) has all the necessary tools. > > > However, I personally use a much smaller root, say 1G or less, and > > then have /usr, /var (and possibly some others depending on the > > purpose of the machine) inside LVM. > > For that reason i keep as much as possible in LVM. Maintenance just is > easier when you find you ran out of space on some partition and simply > can lvresize it. But I guess that is just personal preference
The other issue is that if you look at the filesystem dependancies in the boot-up scripts, on Debian you can't finish single-user mode without needing all filesystems. I'm rather perturbed about it since before raid1/LVM (i.e. Etch) I had need of a properly funcitoning single-user mode and if I hadn't had busybox-static installed I would have been SOL since the box can't boot a LiveCD. The invention of LiveCDs seems to have caused whoever sets up the boot-up policy to forget about such niceties as a properly functioning stand-alone single mode. The Etch install CD does have a nice rescue mode that finds LVM and raid arrays, if your box has enough ram to activate it. I have only one that does. > > > I have avoided LVM mirroring because as far as I am aware the > > machine would not come up entirely without human intervention if a > > drive would be lost - please correct me if I am wrong there.. > > IMHO lvm mirroring is useless. if I do LVM (on servers) I have > multiple drives and i tend to trust mdadm more in this field than LVM > (don't ask me why - I couldn't logically say why). The advantage I see to LVM mirroring is the ability to create mirrored filesystems on the fly and to resize them. Can't do that with mdadm raid1. I don't use LVM mirroring since it isn't part of Etch's install system. Doug. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
