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OpenVZ & RAID [message #30424] Sun, 25 May 2008 13:33 Go to next message
nt1303 is currently offline  nt1303
Messages: 11
Registered: April 2006
Junior Member
Hello all,

I have mainboard Intel Server S5000VSA and installed Centos OS 5.1 work with driver on intel website. But it can not work on OpenVZ Kernel , error: kernel panic ...

Can you help fix it work with OpenVZ kernel ??

Raid: Intel® Embedded Server RAID Technology II


Thank You,
Ngoc Thang
Re: OpenVZ & RAID [message #30425 is a reply to message #30424] Sun, 25 May 2008 13:37 Go to previous messageGo to next message
azagzin is currently offline  azagzin
Messages: 38
Registered: May 2008
Location: Vilnius
Member
do you compiled intel raid support in OpenVZ kernel ?
Re: OpenVZ & RAID [message #30426 is a reply to message #30424] Sun, 25 May 2008 14:25 Go to previous messageGo to next message
ugob is currently offline  ugob
Messages: 271
Registered: March 2007
Senior Member
Which openvz kernel have you tried?

Please read the manual before asking questions:
http://download.openvz.org/doc/OpenVZ-Users-Guide.pdf

Please have a look at the wiki before asking questions:
http://wiki.openvz.org/Main_Page
Re: OpenVZ & RAID [message #30440 is a reply to message #30425] Mon, 26 May 2008 09:32 Go to previous messageGo to next message
nt1303 is currently offline  nt1303
Messages: 11
Registered: April 2006
Junior Member
I used : Kernel RHEL5 2.6.18-53.1.19.el5 028stab053.14 released

Can you help me compile intel raid support in OpenVZ kernel ?


Thank You
Re: OpenVZ & RAID [message #30441 is a reply to message #30440] Mon, 26 May 2008 10:54 Go to previous messageGo to next message
khorenko is currently offline  khorenko
Messages: 533
Registered: January 2006
Location: Moscow, Russia
Senior Member
Hi.

Do you have a link to the sources of the driver you want to compile? Can you please post it?

Thanks,
Konstantin


If your problem is solved - please, report it!
It's even more important than reporting the problem itself...
Re: OpenVZ & RAID [message #30445 is a reply to message #30441] Mon, 26 May 2008 12:30 Go to previous messageGo to next message
ugob is currently offline  ugob
Messages: 271
Registered: March 2007
Senior Member
Have you tried another kernel from here:

http://download.openvz.org/kernel/


Please read the manual before asking questions:
http://download.openvz.org/doc/OpenVZ-Users-Guide.pdf

Please have a look at the wiki before asking questions:
http://wiki.openvz.org/Main_Page
Re: OpenVZ & RAID [message #32366 is a reply to message #30424] Sun, 03 August 2008 12:26 Go to previous messageGo to next message
paveo is currently offline  paveo
Messages: 17
Registered: April 2008
Junior Member
I have this problem with newest kernel installed. Sad
Re: OpenVZ & RAID [message #32367 is a reply to message #32366] Sun, 03 August 2008 14:04 Go to previous messageGo to next message
ugob is currently offline  ugob
Messages: 271
Registered: March 2007
Senior Member
What would make most sense is to use software RAID. Intel raid is most likely fake RAID anyway.

Please read the manual before asking questions:
http://download.openvz.org/doc/OpenVZ-Users-Guide.pdf

Please have a look at the wiki before asking questions:
http://wiki.openvz.org/Main_Page
Re: OpenVZ & RAID [message #32368 is a reply to message #32367] Sun, 03 August 2008 14:08 Go to previous messageGo to next message
paveo is currently offline  paveo
Messages: 17
Registered: April 2008
Junior Member
So, now how can we get it support to OpenVZ? Confused
Re: OpenVZ & RAID [message #32371 is a reply to message #32368] Sun, 03 August 2008 22:41 Go to previous messageGo to next message
ugob is currently offline  ugob
Messages: 271
Registered: March 2007
Senior Member
If it is fake raid, it is rather useless to have it supported in the kernel. It adds complexity for no reason.

Please read the manual before asking questions:
http://download.openvz.org/doc/OpenVZ-Users-Guide.pdf

Please have a look at the wiki before asking questions:
http://wiki.openvz.org/Main_Page
Re: OpenVZ & RAID [message #32380 is a reply to message #32368] Mon, 04 August 2008 18:21 Go to previous message
khorenko is currently offline  khorenko
Messages: 533
Registered: January 2006
Location: Moscow, Russia
Senior Member
Hello guys,

just to clarify a little bit the term "fake raid":
http://linuxmafia.com/faq/Hardware/sata.html#fakeraid
Quote:

Most ATA RAID host adapters (except 3Ware Escalade, Adaptec 24x0, Areca, HP/Compaq, IBM ServeRAID, Intel SRC*/ICP Vortex, LSI Logic MegaRAID 150-4/150-6, and Tekram) turn out, upon examination, to not be real hardware RAID, but rather software/BIOS-dependent fakeraid. (I.e., missing hardware functionality is traditionally emulated inside idiosyncratic, undocumented, and proprietary software drivers, to hit low price points). Fakeraid is difficult to support in Linux — absent either reverse-engineering, special proprietary drivers, or (rare) manufacturer cooperation. (HighPoint, LSI Logic, Nvidia, Promise, and VIA provide proprietary drivers to support their respective fakeraids. I personally would steer clear.)

Linux often cannot read existing fakeraid volumes on such host adapters, unless you're willing to use proprietary fakeraid drivers (where available). But unless you're dual-booting MS-Windows, you shouldn't care, because Linux's software RAID (kernel "md" driver) is much faster and more reliable. You're advised to blow away fakeraid volumes, use SATA drives as straight block devices, and enable Linux software RAID instead, during Linux installation.


So, just try to use native Linux software raid - it's nothing to worry about!

Hope that helps.

--
Konstantin


If your problem is solved - please, report it!
It's even more important than reporting the problem itself...
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