[K12OSN] Linux "Software RAID"

[Krsnendu dasa]

On Ubuntu Raid still installs grub, but if you install lvm you get lilo
instead.

2008/8/8 James P. Kinney III <jkinney at localnetsolutions.com>

> On Fri, 2008-08-08 at 00:47 -0400, Terrell Prude' Jr. wrote:
> > Andrew @ ATM Logic wrote:
> > >
> > >> He wants RAID 5, not RAID 1.  That calls for hardware RAID.
> > >>
> > >
> > > NO, Linux (and Windows) support software raid 5....  However... They
> are
> > > BOTH stupid, and DO NOT WORK WELL and leave you to hang and
> > > dry!!!!!!!!!!!!!!!!!!
> > >
> > -
> Bear in mind: a two drive failure in RAID5 is very very bad. In many
> cases, recovery is from backups only. If the system is built with
> sequential serial numbered drives and a manufacturing defect is in one,
> it very well may spread to others in the array before the array can be
> rebuilt with the new drive in place. Been there, cursed about it. It
> doesn't matter if its hardware or software raid if 2 drives fail.
>
> Mirrors are easy and reliable. I've seen too many places that actually
> think RAID5 removes the need for backups!
>
> I have had good success with RAID5 recovery using tools from :
> http://www.runtime.org/
> Very affordable and they worked well for me multiple times. They can
> even be embedded in a Barts PE disk setup to make a live Windows CD with
> recovery tools.
>
> Not that anyone _here_ would need a windows recovery tool...
> :-)
> >
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> >
> --
> James P. Kinney III
> CEO & Director of Engineering
> Local Net Solutions,LLC
> http://www.localnetsolutions.com
>
> GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
> <jkinney at localnetsolutions.com>
> Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7
>
>
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