Re: [MLUG] RAID/Volume management opionions sought (was Re: [MLUG- DISCUSSION] HDC)

[Rick Buford <EMAIL:PROTECTED>]

While I've not had any experience with EVMS, LVM has served me quite 
well in my fileserver at home. The only problem that I've had with it is 
when I tried to add another hd,  and then add it to my vg, vgdisplay 
showed the appropriate volume size, but I could never get df to show it 
correctly. When I rebooted to try to force the system to re-see the vg, 
it would no longer mount the volume. Fearing corruption, I vgreduced the 
new drive out, and all returned to normal. It's still sitting there 
unmounted waiting for me to spend the time to figure it out. All in all, 
LVM is extremely easy to setup and configure for a basic arrangement, 
and I've been pondering moving to a "better" striped config to try that 
out. Does anyone wanna loan me an 80G drive for a weekend? =)

Rick

Mark Rages wrote:

>This is a separate question, but I'm replying to this one because it is
>slightly related.
>
>I've got a bunch of hard drives I've got to make into a file server.
>
>I've been looking at EVMS (http://evms.sourceforge.net/), LVM 
>(http://www.sistina.com/products_lvm.htm), and Linux software RAID5.
>
>Because we are storing movie files, a disk failure isa pain, but not a
>catashtrophe. A disk holds several days' work.
>
>I want a system that I can easily add disks to later, that maximizes
>the storage space available, and provides enough redundancy that one
>hard disk failure is recoverable, and two failures won't take the rest
>of the data with them (that *would* be catastrophe).
>
>Is there an economical way to back up this much storage?
>
>Anyone have opinions on EVMS v. LVM? (Last month LVM kernel stuff
>was accepted into 2.5, and EVMS announced their next version will be 
>userspace only, using the LVM kernel layer.) These systems are proud of
>their hot-swap ability, but we don't need 100% uptime, just a measure of
>reliability.
>
>I would appreciate any opinions.
>
>Regards,
>Mark
>
>On Mon, Jan 06, 2003 at 04:06:11PM -0600, Neil Bradshaw wrote:
>  
>
>>It might be cheaper to just have a data recovery place get the stuff for
>>you. As long as you don't have anything really private or illegal on
>>there, I would go this route. Once the drive is open, all it will take is
>>just a little dust in the wrong place to hose it for good.
>>
>>I'd give you trouble about backups, but I don't want to get killed by a
>>hard drive :)
>>
>>Cheers,
>>Neil Bradshaw
>>_______________________________________
>>http://www.pimpdomain.net/
>>EMAIL:PROTECTED
>>EMAIL:PROTECTED
>>
>>"Seishin ittou nanigoto ka narazaran."
>>
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