Re: Advice on hardware server to use for small a dedicated data center
On Wed, Jul 01, 2020 at 08:49:09PM +1000, elvis wrote:
>
> On 1/7/20 4:51 am, Dan Ritter wrote:
> > Miles Fidelman wrote:
> > > On 6/29/20 7:20 PM, Dan Ritter wrote:
> > >
> > > > Miles Fidelman wrote:
> > > > > On 6/29/20 9:10 AM, Dan Ritter wrote:
> > > > >
> > > > > > Miles Fidelman wrote:
> > > > > Now who's being pedantic?
> > > > Precisely.
> > > >
> > > > > And isn't this exactly what I said??? mdadm is an admin program, it doesn't
> > > > > perform the raid function.
> > > > And it's OK to refer to the whole thing as an mdadm RAID.
> > > No.. if you want to be pedantic, the proper terminology is "Linux Raid" or
> > > "md RAID."?? mdadm is one of several admin programs available
> > What are the others, please? (That will work on a modern system,
> > say, Debian stable or oldstable or unstable.)
> >
> > I think there's precisely one -- libblockdev2.
>
> lvm does its own raid now too...
>
> https://www.reddit.com/r/linuxquestions/comments/9kkk3b/md_raid_lvm_vs_lvm_raid/
... and it's not the mdraid, but entirely different kernel subsystem.
Last time I've checked it, they did not even implemented incremental
RAID assembly in LVM, meaning that you won't be able to use such array
if a single drive from LVM-based RAID will fail.
They've solved this problem in mdraid like 15 years ago.
But staying on-topic, I'm too very interested to hear about alternative
interfaces to mdraid, which do not involve mdadm. libblockdev2 does not
count, it's merely a wrapper.
Reco
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