[CentOS] Re: settings up cheap a NAS / SAN server, is it possible?
ssilva at sgvwater.com
Wed Jul 2 22:27:18 UTC 2008
on 7-2-2008 3:14 PM Victor Padro spake the following:
> "It is human nature to think wisely and act in an absurd fashion."
> "Todo el desorden del mundo proviene de las profesiones mal o
> mediocremente servidas"
> On Wed, Jul 2, 2008 at 11:08 AM, Scott Silva
> <ssilva at sgvwater.com
> <mailto:ssilva at sgvwater.com>> wrote:
> on 7-2-2008 8:52 AM Victor Padro spake the following:
> On Wed, Jul 2, 2008 at 8:50 AM, Rudi Ahlers
> <Rudi at softdux.com
> <mailto:Rudi at softdux.com>
> <mailto:Rudi at softdux.com
> <mailto:Rudi at softdux.com>>> wrote:
> nate wrote:
> Rudi Ahlers wrote:
> I think my action plan now will be to figure out how to
> install CentOS
> on a USB memory stick and make it boot on any machine
> (making it easy to
> replace if need be), and then to play around with the
> RAID a
> bit and see
> how well it works.
> Another option you may want to consider is a PATA->CF
> adapter. I use
> these for my OpenBSD firewalls and have them installed on
> 1GB CF
> Performance should be better? Compatibility certainly is
> no way I could boot to USB off these aging P3-800
> systems. The
> CF cards
> just show up as regular HDs
> I use these ($7):
> Paired with Lexar CF cards. Not all CF is created equal, well
> maybe it is
> today. I found my Lexar CF cards were 5-10x faster than my
> Kingston cards
> of the same size, which surprised me. Not that I need high
> performance in
> firewalls that do no disk I/O but it was painful for the OS
> install to
> take hours(Kingston) instead of minutes(Lexar). Both
> pairs of CF
> are a few years old, today maybe everything out there is
> At least with the above adapters be aware that those
> adapters above
> do stick up. I think a 2U chassis can fit them(I have tons of
> in supermicro systems). But no guarantees. You may need
> or perhaps a male to female IDE cable so that you can
> mount it
> way in the chassis.
> I suppose you could even get two and run RAID.
> Just don't put your swap on the flash if you can avoid it.
> Thanx, nate
> That's a good suggestion, but I think the USB memory sticks could
> work better / more reliable, and will be easier to access in the
> cabinet. I'll play around with it a bit and see how it works.
> Kind Regards
> Rudi Ahlers
> CEO, SoftDux
> Web: http://www.SoftDux.com
> Check out my technical blog, http://blog.softdux.com for Linux or
> other technical stuff, or visit
> http://www.WebHostingTalk.co.za for
> Web Hosting stuff
> CentOS mailing list
> CentOS at centos.org
> <mailto:CentOS at centos.org>
> <mailto:CentOS at centos.org
> <mailto:CentOS at centos.org>>
> (I apologize in advance if someone thinks this is OT)
> I've been reading this thread since it started, and what I could
> really say is you should go for freenas, it can be installed in
> a matter of minutes in a usb pendrive, I use it on a 2gb
> kingston one using an IBM eServer tower chassis, Intel D201GLY2
> mainboard, 1Gb 667Mhz RAM, 2 HDs those are 750gb SATA in RAID5
> 2 drives in raid5? Then it is really only a raid 0, and will fail
> sooner or later.
> Even if it's fake RAID5(RAID software)?
> Didn't know that.
Raid 5 need a minimum of 3 drives. The only way to get 2 drives in software
raid is to create the array with the "missing" statement.
With only 2 drives, you have a stripe with a failed parity.
So 2 drives is already missing one, and the next failure is doom.
Raid 1 (mirror) is fine with 2 drives.
MailScanner is like deodorant...
You hope everybody uses it, and
you notice quickly if they don't!!!!
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 258 bytes
Desc: OpenPGP digital signature
Url : http://lists.centos.org/pipermail/centos/attachments/20080702/ad545200/signature.bin
More information about the CentOS