Re: double raid 1 & filesystem
> On Thu, Jul 19, 2007 at 08:22:40AM -0700, Francesco Pietra wrote:
> > I need more fast-HD space for computational work. I wonder whether by
> > adding a second SATA raid1 (a couple of new disks) to the existing SATA
> > raid1, my home could be spread on the two raid1 systems, as if it were a
> > single disk (or filesystem, if you want).
If you use software mirroring, you can do it all (I did it few weeks ago - I
added another two 250GB disks to mirror of two 250GB disks, I now have 500GB
RAID10). If you use hardware mirroring (if it's not real hardware mirror,
switch to software mirror! see http://linux-ata.org/faq-sata-raid.html), if
highly depends on what your RAID card(s) can do, or you can simply create
software stripe of two HW mirrors,
On 20.07.07 08:18, Alex Samad wrote:
> Also raid 10 - will give you benefits of striping and mirroring, 1 hard
> drive can fail and the other mirror will keep functioning.
RAID10 (shortcut from raid1+0) is strip of mirrors, you maybe thought "the
other _in_ mirror..."
(raid0+1, aka mirror of stripes, is also possible, but has much higher
probability of failing, when two disks fail)
--
Matus UHLAR - fantomas, uhlar@fantomas.sk ; http://www.fantomas.sk/
Warning: I wish NOT to receive e-mail advertising to this address.
Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
Quantum mechanics: The dreams stuff is made of.
Reply to: