3 Jul
2008
3 Jul
'08
12:27 a.m.
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@sgvwater.com mailto:ssilva@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@softdux.com <mailto:Rudi@softdux.com> <mailto:Rudi@softdux.com <mailto:Rudi@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 cards. Performance should be better? Compatibility certainly is better, there's 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): http://www.geeks.com/details.asp?invtid=SY-ADIDE2CF-B1&cpc=SCH <http://www.geeks.com/details.asp?invtid=SY-ADIDE2CF-B1&cpc=SCH> <http://www.geeks.com/details.asp?invtid=SY-ADIDE2CF-B1&cpc=SCH <http://www.geeks.com/details.asp?invtid=SY-ADIDE2CF-B1&cpc=SCH>> 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 cards are a few years old, today maybe everything out there is reasonably fast. 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 experience in supermicro systems). But no guarantees. You may need another adapter or perhaps a male to female IDE cable so that you can mount it another 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. nate ______________________________________________ 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@centos.org <mailto:CentOS@centos.org> <mailto:CentOS@centos.org <mailto:CentOS@centos.org>> http://lists.centos.org/mailman/listinfo/centos Hi, (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.
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