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ddolbel
n00b
Joined: 30 Nov 2005
Posts: 30
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 Posted: Sat May 20, 2006 11:42 am Post subject: E450 and RAID |
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ok, I just bought another e450 and I have 10 scsi disks, I want to setup 2 raid 5 arrays
I don't have a clue what I need to do to make this happen.....
does anyone have any doco or can point me in the right direction.
Any help is grately appreaciated.
Thanks in advance. |
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bin-doph
Guru
Joined: 23 May 2003
Posts: 302
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| Posted: Mon May 22, 2006 9:55 am Post subject: |
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hard- or software-raid?
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P3SM
Tux's lil' helper
Joined: 13 Apr 2006
Posts: 93
Location: Gronsveld - The Netherlands
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| Posted: Mon May 22, 2006 10:22 am Post subject: |
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I think we can safely assume that software raid is meant, since the E450 standard doesn't provide hardware raid and posting a question about hardware raid in the Gentoo forum might be a bit off topic.
That said:
For software raid any Google on "linux software raid" will give you loads of info.
A good place to start is: http://www.tldp.org/HOWTO/Software-RAID-HOWTO.html#toc5
Cheers, P3SM
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Smaug: Sun Netra T1 105, UltraSPARC-IIi 440MHz, 512MB, 2*36GB 10kRPM; 2 Sun Netra D130: 6*36GB 10kRPM, swraid 0
Haku: Dual P3 Xeon 500MHz, 512MB; Sun Multipack: 12*18GB 10kRPM, hwraid 5
Falkor: Sun SparcStation LX, 128 MB, 2.1GB |
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bin-doph
Guru
Joined: 23 May 2003
Posts: 302
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| Posted: Mon May 22, 2006 11:23 am Post subject: |
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| P3SM wrote: | I think we can safely assume that software raid is meant, since the E450 standard doesn't provide hardware raid and posting a question about hardware raid in the Gentoo forum might be a bit off topic.
That said:
For software raid any Google on "linux software raid" will give you loads of info.
A good place to start is: http://www.tldp.org/HOWTO/Software-RAID-HOWTO.html#toc5
Cheers, P3SM |
Why not talk about hardware-issues on these forums? The ref to that document on tldp is what I'd also recommend. If you haven't yet installed your system you could go by this walkthrough to
http://gentoo-wiki.com/HOWTO_Gentoo_Install_on_Software_RAID
hth
-fe
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P3SM
Tux's lil' helper
Joined: 13 Apr 2006
Posts: 93
Location: Gronsveld - The Netherlands
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| Posted: Mon May 22, 2006 11:34 am Post subject: |
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| Quote: | | Why not talk about hardware-issues on these forums? |
Yeah you're right! Why not!
Cheers, P3SM
_________________
Smaug: Sun Netra T1 105, UltraSPARC-IIi 440MHz, 512MB, 2*36GB 10kRPM; 2 Sun Netra D130: 6*36GB 10kRPM, swraid 0
Haku: Dual P3 Xeon 500MHz, 512MB; Sun Multipack: 12*18GB 10kRPM, hwraid 5
Falkor: Sun SparcStation LX, 128 MB, 2.1GB |
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ddolbel
n00b
Joined: 30 Nov 2005
Posts: 30
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| Posted: Tue May 23, 2006 10:46 am Post subject: |
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Software raid, is what i'm after, I will check out the links you provided thanks for your assistance,
I agree also, I would love to see more hardware issues being raised on the forum, good call!  |
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gaidh
n00b
Joined: 23 Jun 2006
Posts: 4
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| Posted: Fri Jun 23, 2006 6:36 am Post subject: |
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| Both of my E450s have PCI controllers added to handle the hotswap arrays (the onboard is handling the CDROM and tape). Since I inhereted these things I don't know if they were ordered this way, but it might be worth checking your PCI bus to see if you have a hardware controller added on - hardware RAID will usually be more efficient and transparent if you've got a controller capable of it. 'Course, then you'd have to figure out how to configure it, while software RAID promises to be much easier to setup and monitor (especially with mdadm in place of raidtools). |
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P3SM
Tux's lil' helper
Joined: 13 Apr 2006
Posts: 93
Location: Gronsveld - The Netherlands
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| Posted: Fri Jun 23, 2006 7:36 am Post subject: |
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| gaidh wrote: | | 'Course, then you'd have to figure out how to configure it |
Actually normally a hardware raid card has its own bios that you can access at startup. In there you configure all raid stuff. In the OS the raid is then invisible and it presents itself as /dev/sdx
At least the HP Megaraid card I'm using works like that 
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Smaug: Sun Netra T1 105, UltraSPARC-IIi 440MHz, 512MB, 2*36GB 10kRPM; 2 Sun Netra D130: 6*36GB 10kRPM, swraid 0
Haku: Dual P3 Xeon 500MHz, 512MB; Sun Multipack: 12*18GB 10kRPM, hwraid 5
Falkor: Sun SparcStation LX, 128 MB, 2.1GB |
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Weeve
Retired Dev
Joined: 30 Oct 2002
Posts: 641
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| Posted: Fri Jun 23, 2006 2:21 pm Post subject: |
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| P3SM wrote: |
Actually normally a hardware raid card has its own bios that you can access at startup. In there you configure all raid stuff. In the OS the raid is then invisible and it presents itself as /dev/sdx
At least the HP Megaraid card I'm using works like that |
Is that card in an x86/x86_64 host or in a SPARC? |
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P3SM
Tux's lil' helper
Joined: 13 Apr 2006
Posts: 93
Location: Gronsveld - The Netherlands
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| Posted: Fri Jun 23, 2006 7:40 pm Post subject: |
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| Weeve wrote: | | Is that card in an x86/x86_64 host or in a SPARC? |
It is in my P3 Xeon box!
_________________
Smaug: Sun Netra T1 105, UltraSPARC-IIi 440MHz, 512MB, 2*36GB 10kRPM; 2 Sun Netra D130: 6*36GB 10kRPM, swraid 0
Haku: Dual P3 Xeon 500MHz, 512MB; Sun Multipack: 12*18GB 10kRPM, hwraid 5
Falkor: Sun SparcStation LX, 128 MB, 2.1GB |
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krakadikt5k
n00b
Joined: 26 Oct 2004
Posts: 18
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| Posted: Fri Jul 14, 2006 10:56 pm Post subject: |
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| P3SM wrote: | | Weeve wrote: | | Is that card in an x86/x86_64 host or in a SPARC? |
It is in my P3 Xeon box! |
your card has a x86 bios. sun cards dont have a bios because suns dont have a bios. OBP doesn't have the faculties to configure raid cards (not that i've ever heard). usually sun hardware raid systems need to be configured by a sun binary that probably requires hooks in the sun kernel. so it probably wouldn't even work in emulation. you need a dual boot solaris partition to configure hardware raid on a sun.
-dan |
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Gentoo on Sparc
