Re: Software raid5 through a sata port multiplier

2009-04-26 Thread Maxim Khitrov
On Sat, Apr 25, 2009 at 6:02 PM, Wojciech Puchar woj...@wojtek.tensor.gdynia.pl wrote: thinking that a software raid5 solution may not be such a bad idea. software raid5 isn't any more bad than hardware raid5 most cases. just raid5 is bad if you use it in ANY type of load except: a) mostly

Software raid5 through a sata port multiplier

2009-04-25 Thread Maxim Khitrov
can justify the performance. This is also an addition of yet another piece of hardware that can fail. The machine is using a Q6600 processor with 8 GB of memory, so I'm thinking that a software raid5 solution may not be such a bad idea. The question is what port multiplier hardware does FreeBSD 7

Re: Software raid5 through a sata port multiplier

2009-04-25 Thread Wojciech Puchar
thinking that a software raid5 solution may not be such a bad idea. software raid5 isn't any more bad than hardware raid5 most cases. just raid5 is bad if you use it in ANY type of load except: a) mostly reads - then set LARGE RAID stripe size b) mostly huge files - then set small RAID stripe

Re: Software RAID5

2007-09-23 Thread Gabriel Dragffy
On 22 Sep 2007, at 09:03, Wojciech Puchar wrote: If you google for gvinum you'll find tutorials etc. AFAICT, you can't have the root device on a RAID5 gvinum. Just make a small root partition. yes you can __ Hi Wojciech Would you be able to give me any tips or know of any howtos

Re: Software RAID5

2007-09-23 Thread Gabriel Dragffy
On 22 Sep 2007, at 01:13, Maxim Khitrov wrote: On 9/21/07, Gabriel Dragffy [EMAIL PROTECTED] wrote: Hi all Hoping to get some help setting up software RAID5. Guides on the internet seem to be few and far between, and official documentation is a little too technical. Basically I have 3 x

Re: Software RAID5

2007-09-23 Thread Roland Smith
On Sun, Sep 23, 2007 at 05:59:01PM +0100, Gabriel Dragffy wrote: This sounds good. How exactly did you manage to encrypt discs and then install freebsd there? I can just about setup software raid once freebsd is installed, but by then I am unable to use a hard drive because it already has

Re: Software RAID5

2007-09-23 Thread Maxim Khitrov
On 9/23/07, Roland Smith [EMAIL PROTECTED] wrote: On Sun, Sep 23, 2007 at 05:59:01PM +0100, Gabriel Dragffy wrote: This sounds good. How exactly did you manage to encrypt discs and then install freebsd there? I can just about setup software raid once freebsd is installed, but by then I am

Re: Software RAID5

2007-09-23 Thread Matthew Seaman
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Roland Smith wrote: The things that you should encrypt are /home and maybe /var. and swap. Encrypting the swap is really quite important. Cheers, Matthew - -- Dr Matthew J Seaman MA, D.Phil. 7 Priory

Re: Software RAID5

2007-09-23 Thread Gabriel Dragffy
On 23 Sep 2007, at 19:30, Matthew Seaman wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Roland Smith wrote: The things that you should encrypt are /home and maybe /var. and swap. Encrypting the swap is really quite important. Cheers, Matthew Oh you know what?

Re: Software RAID5

2007-09-22 Thread Roland Smith
On Fri, Sep 21, 2007 at 11:50:58PM +0100, Gabriel Dragffy wrote: Hi all Hoping to get some help setting up software RAID5. Guides on the internet seem to be few and far between, and official documentation is a little too technical. Basically I have 3 x 500GB hard drives which I'd like

Re: Software RAID5

2007-09-22 Thread Wojciech Puchar
Hoping to get some help setting up software RAID5. Guides on the internet seem to be few and far between, and official documentation is a little too technical. Basically I have 3 x 500GB hard drives which I'd like to have in a raid5 configuration, using software, root partition on their too

Re: Software RAID5

2007-09-22 Thread Wojciech Puchar
and put the kernel on that. Just use fdisk and bsdlabel to write the boot blocks. As long as the kernel has all needed drivers and you specify which root device to use (either via kernel configuration or /etc/fstab), that should allow you to put everything else on the RAID array. This is how I

Re: Software RAID5

2007-09-22 Thread Wojciech Puchar
If you google for gvinum you'll find tutorials etc. AFAICT, you can't have the root device on a RAID5 gvinum. Just make a small root partition. yes you can ___ freebsd-questions@freebsd.org mailing list

Re: Software RAID5

2007-09-22 Thread Gabriel Dragffy
On 22 Sep 2007, at 08:42, Roland Smith wrote: On Fri, Sep 21, 2007 at 11:50:58PM +0100, Gabriel Dragffy wrote: Hi all Hoping to get some help setting up software RAID5. Guides on the internet seem to be few and far between, and official documentation is a little too technical. Basically

Re: Software RAID5

2007-09-22 Thread Gabriel Dragffy
On 22 Sep 2007, at 01:13, Maxim Khitrov wrote: However, a simple solution to that is to get a 64+ MB USB flash drive and put the kernel on that. Just use fdisk and bsdlabel to write the boot blocks. As long as the kernel has all needed drivers and you specify which root device to use (either

Re: Software RAID5

2007-09-22 Thread Gabriel Dragffy
On 22 Sep 2007, at 12:19, Roland Smith wrote: To elaborate, the loader doesn't know about the RAID layout. It is only usable _after_ the kernel has loaded. I read in the FreeBSD hanbook that I can have root on raid 5 by doing the following: There is another option as well, to have

Software RAID5

2007-09-21 Thread Gabriel Dragffy
Hi all Hoping to get some help setting up software RAID5. Guides on the internet seem to be few and far between, and official documentation is a little too technical. Basically I have 3 x 500GB hard drives which I'd like to have in a raid5 configuration, using software, root partition

Re: Software RAID5

2007-09-21 Thread Maxim Khitrov
On 9/21/07, Gabriel Dragffy [EMAIL PROTECTED] wrote: Hi all Hoping to get some help setting up software RAID5. Guides on the internet seem to be few and far between, and official documentation is a little too technical. Basically I have 3 x 500GB hard drives which I'd like to have in a raid5