[plug] Raid 0 software? hardware?

[WolfBite]

cool, thanks

at the moment I'm still trying the hardware raid, as
this works with xp & linux at the same time.
(slowly getting off xp, but still best option with
games. except for ut2k4 which is now solely linux. :)

the software raid main option is if I only want to
part raid some linux partitions (which is still a
possability)

just surprised that the speed difference is not as
much as people said it would be :(

WolfBite

--- Adrian Woodley <Adrian at ScreamingRoot.org> wrote:
> Biggest problem with hardware RAID is that if your
> controller blows up, 
> you need to get an exact replacement to recover your
> array. With 
> software RAID, all you need is a generic IDE
> controller, so when it dies 
> you don't need and extact replacement.
> 
> Other advantages are that you can mix your hardware
> types - SATA, IDE, 
> SCSI, USB, etc.
> 
> Have had great success with software RAID5 (3+1
> disks) on a production 
> machine. Still provides reasonable speed.
> 
> Gandalf:~# hdparm -t -T /dev/md1
> 
> /dev/md1:
>  Timing cached reads:   1600 MB in  2.00 seconds =
> 799.32 MB/sec
>  Timing buffered disk reads:   94 MB in  3.04
> seconds =  30.94 MB/sec
> Gandalf:~# hdparm -t -T /dev/hda
> 
> /dev/hda:
>  Timing cached reads:   1592 MB in  2.00 seconds =
> 794.93 MB/sec
>  Timing buffered disk reads:  150 MB in  3.00
> seconds =  49.94 MB/sec
> Gandalf:~# hdparm -t -T /dev/hdc
> 
> /dev/hdc:
>  Timing cached reads:   1608 MB in  2.00 seconds =
> 803.72 MB/sec
>  Timing buffered disk reads:  174 MB in  3.02
> seconds =  57.61 MB/sec
> Gandalf:~# hdparm -t -T /dev/hde
> 
> /dev/hde:
>  Timing cached reads:   1588 MB in  2.00 seconds =
> 793.33 MB/sec
>  Timing buffered disk reads:  126 MB in  3.06
> seconds =  41.12 MB/sec
> Gandalf:~# hdparm -t -T /dev/hdg
> 
> /dev/hdg:
>  Timing cached reads:   1608 MB in  2.00 seconds =
> 802.92 MB/sec
>  Timing buffered disk reads:  160 MB in  3.02
> seconds =  52.94 MB/sec
> Gandalf:~# uname -a
> Linux Gandalf 2.6.10-ac10 #1 Tue Jan 25 14:19:44 WST
> 2005 i686 GNU/Linux
> Gandalf:~# cat /proc/cpuinfo
> processor       : 0
> vendor_id       : AuthenticAMD
> cpu family      : 6
> model           : 10
> model name      : AMD Athlon(tm) XP 2500+
> stepping        : 0
> cpu MHz         : 1829.888
> cache size      : 512 KB
> fdiv_bug        : no
> hlt_bug         : no
> f00f_bug        : no
> coma_bug        : no
> fpu             : yes
> fpu_exception   : yes
> cpuid level     : 1
> wp              : yes
> flags           : fpu vme de pse tsc msr pae mce cx8
> apic sep mtrr pge 
> mca cmov pat pse36 mmx fxsr sse pni syscall mmxext
> 3dnowext 3dnow
> bogomips        : 3612.67
> 
> Regards,
> Adrian
> 
> WolfBite wrote:
> 
> >pretty disappointed with my speeds using ITE8212
> >hdparm 49->60
> >Havent tested speeds with software raid yet.
> >
> >I would like some feed back on success/failure of
> >raid.
> >
> >Anyone using a decent raid controller (hopefully
> >doesnt cost alot :) with decent results?
> >that is HOPEFULLY reckonized by the kernel (the
> hoops
> >I have to go through for each raid controller has
> been
> >a pain)
> >
> >the ite8212 is onboard (gigabyte raid)
> >even got an old adaptec 1200a
> >
> >I would like some DECENT speed increase.
> >
> >Anyone?
> >
> >WolfBite
> >
> >
> >		
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> >_______________________________________________
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> >  
> >
> 
> > _______________________________________________
> PLUG discussion list: plug at plug.org.au
> http://www.plug.org.au/mailman/listinfo/plug
> Committee e-mail: committee at plug.linux.org.au
> 


		
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