Mon, 2006-04-03 08:41:12 -0400, Thomas Schwinge <tschwinge (AT) gnu (DOT) orgwrote:
Mon, Apr 03, 2006 at 01:32:48PM +0100, Jim Ford wrote:
Hmm, there are so many horror stories on this forum that I'm beginning
to wish that I hadn't chosen the LVM option when I installed my Kubuntu
system! Mind you, having said that, I never had problems with 5 years of
software raid on a Slackware box.

Well, it's commonly know that mostly the horror stories are what people
tell each other and remember. And especially in this very place, as it's
main purpose (apart from developing the software further) is to be a
contact point for people encountering such issues.

Full ACK. The most scary cases are those where people expect to get
high-availability by LVM'ing some IDE disks together.

Hey, LVM on MD really is a nice thing, even dm-crypt ontop, works
flawlessly :)

MfG, JBG

4/3/06, Jim Ford <jaford (AT) watford53 (DOT) freeserve.co.ukwrote:

Hmm, there are so many horror stories on this forum that I'm beginning
to wish that I hadn't chosen the LVM option when I installed my Kubuntu
system! Mind you, having said that, I never had problems with 5 years of
software raid on a Slackware box.
--
I agree it is scary, by which I mean that you got to play with it carefully
Having said that, I find LVM a step (generation) above normal partitioning
system.
It can give lot of flexibility provided that is planned properly and in
advance.
In many cases I find users (not anyone particular), let's call 'click
happy',
and here I mean to say that people have taken it for granted that LVM will
be a cake walk, It is if you know how you can play with it.
LVM is not like a computer game where one plays and learns. Here, replay is
very costly and that is causing lot of anguish among users.

4/3/06, Thomas Schwinge <tschwinge (AT) gnu (DOT) org wrote:

Mon, Apr 03, 2006 at 01:32:48PM +0100, Jim Ford wrote:
Hmm, there are so many horror stories on this forum that I'm beginning
to wish that I hadn't chosen the LVM option when I installed my Kubuntu
system! Mind you, having said that, I never had problems with 5 years of

software raid on a Slackware box.

Well, it's commonly know that mostly the horror stories are what people
tell each other and remember. And especially in this very place, as it's
main purpose (apart from developing the software further) is to be a
contact point for people encountering such issues.

I'm quite sure that there are (ten- / hundred-)thousands of LVM
installations that just work; like those I did on a number of systems.

Lists move too fast, what I wrote in other thread should have appeared here

P.S . Next project for me: make GRUB2 read LVM volumes. Anyone who wants
to help or has already done something, please speak up now.
--
Can contribute in testing, please intimate pointer to test versions.
Meanwhile wish you all the best for making GRUB2.

Monday April 3 2006 15:41, Jim Ford wrote:
Jan-Benedict Glaw wrote:
Full ACK. The most scary cases are those where people expect to get
>
>high-availability by LVM'ing some IDE disks together.
>
>Hey, LVM on MD really is a nice thing, even dm-crypt ontop, works
>flawlessly :)
>
What, you mean Mini Disk - the little magneto optical disks used for
personal audio players? What's the advantage in that, aren't they only
about a 1 gig storage?

No, he is talking about MD in the Linux kernel - the things that enables
device mapping, RAID, and all the other wonderful thingies. :-D

Regards
Martin

Jim Ford

linux-lvm mailing list
linux-lvm (AT) redhat (DOT) com

read the LVM HW-T at http://tldp.org/HWT/LVM-HWT/

Mon, 2006-04-03 14:41:18 +0100, Jim Ford <jaford (AT) watford53 (DOT) freeserve.co.ukwrote:
Jan-Benedict Glaw wrote:
>Full ACK. The most scary cases are those where people expect to get
>
>high-availability by LVM'ing some IDE disks together.
>
>Hey, LVM on MD really is a nice thing, even dm-crypt ontop, works
>flawlessly :)
What, you mean Mini Disk - the little magneto optical disks used for
personal audio players? What's the advantage in that, aren't they only
about a 1 gig storage?

No, Linux' MultiDisk stuff was ment (SoftRAID). You take a bunch of
HDDs, put it to different controllers and configure those *carefully*
after *thinking* to show up as a RAID device. Then you can use LVM
(again, after careful thinking) with these.

MfG, JBG