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Re: [SLUG] Data Redundancy, RAID5/LVM backup decisions
- To: SLUG list <slug@xxxxxxxxxxx>
- Subject: Re: [SLUG] Data Redundancy, RAID5/LVM backup decisions
- From: Kevin Shackleton <kevins@xxxxxxxxxxxxxxx>
- Date: Sun, 08 Nov 2009 14:57:44 +0800
- Reply-to: kevins@xxxxxxxxxxxxxxx
My ReadyNAS Duo runs Linux:
kevins@mypc:/$ ssh mynas
kevins@mynas:/$ uname -a
Linux mynas 18.104.22.168ReadyNAS #1 Tue Jun 9 13:59:28 PDT 2009 padre \
total used free shared buffers
Mem: 487808 453392 34416 0 94944
-/+ buffers/cache: 152608 335200
Swap: 255968 320 255648
(you have to run a patch from Netgear to access the system, since then
I've seldom used the web interface)
The processor is a little slow but is ok for me. I upgraded the RAM
from 256 GB using a 2nd-hand 512 GB (only 1 slot.
You might prefer a unit that does RAID5 rather than RAID1 but there's
only a 50% increase in capacity when filling a box that will hold 4
discs from the basic 3 discs. I doubled my box's capacity by stepping:
single 500 GB - as supplied
500 GB + 1 TB - 2nd drive provided under a promotion some weeks later
1 TB + 1 TB - for the cost of one drive
I removed some plastic from the front of the caddies that used a wedge
system to jump the caddy catch. When the wedge got a little dusty it
all jammed up. Now I can jump the catch with a biro.
One feature you may want that the Duo doesn't have but some boxes do is
a 2nd Ethernet adapter. I presume with 2 adapters you can use the box
to do some firewalling / DMZ sort of stuff.
On Sun, 2009-11-08 at 15:51 +1100, Sridhar Dhanapalan wrote:
> 2009/11/8 Kevin Shackleton <kevins@xxxxxxxxxxxxxxx>:
> > Save the environment - buy a NAS.
> > (my mirrored 2-disc NAS averages about 20 W)
> That's a good suggestion. My reluctance to use a NAS myself stems from
> the perception of less configurability. Are they any good and
> affordable NAS solutions out there that allow a decent level of
> configurability and permissions-setting?
> Something based on FOSS would be preferable.