Re: when is a disk non-fresh?

2008-02-08 Thread Dexter Filmore
On Friday 08 February 2008 00:22:36 Neil Brown wrote: On Thursday February 7, [EMAIL PROTECTED] wrote: On Tuesday 05 February 2008 03:02:00 Neil Brown wrote: On Monday February 4, [EMAIL PROTECTED] wrote: Seems the other topic wasn't quite clear... not necessarily. sometimes it

Re: Any inexpensive hardware recommendations for PCI interface cards?

2008-02-08 Thread Tim Southerwood
Hi Steve, Steve Fairbairn wrote: snip Is anyone using an array with disks on PCI interface cards? Almost, I have a Sil3132 PCI-E card (2 port SATA-300) mixed with 6 on board ports (on Asus M2N-E mobo). No problems there, I quite pleased with it. Is there an issue with mixing motherboard

Any inexpensive hardware recommendations for PCI interface cards?

2008-02-08 Thread Steve Fairbairn
Hi All, I currently have a couple of IT8212 PCI ATA RAID (1, 0 ot 1+0) cards which Linux RAID doesn't seem to like too well. Initially I tried creating an array out of 4 disks on the 4 primaries over the 2 cards. Although this seemed to work, the access performance was impossibly low and I

Re: raid5: two writing algorithms

2008-02-08 Thread Keld Jørn Simonsen
On Fri, Feb 08, 2008 at 12:51:39PM +1100, Neil Brown wrote: On Friday February 8, [EMAIL PROTECTED] wrote: On Fri, Feb 08, 2008 at 07:25:31AM +1100, Neil Brown wrote: On Thursday February 7, [EMAIL PROTECTED] wrote: So I hereby give the idea for inspiration to kernel hackers.

Re: Deleting mdadm RAID arrays

2008-02-08 Thread Marcin Krol
Thursday 07 February 2008 22:35:45 Bill Davidsen napisał(a): As you may remember, I have configured udev to associate /dev/d_* devices with serial numbers (to keep them from changing depending on boot module loading sequence). Why do you care? Because /dev/sd* devices get swapped

Re: Any inexpensive hardware recommendations for PCI interface cards?

2008-02-08 Thread Bill Davidsen
Steve Fairbairn wrote: Can anyone see any issues with what I'm trying to do? No. Are there any known issues with IT8212 cards (They worked as straight disks on linux fine)? No idea, don't have that card. Is anyone using an array with disks on PCI interface cards? Works. I've

Re: Deleting mdadm RAID arrays

2008-02-08 Thread Marcin Krol
Friday 08 February 2008 13:44:18 Bill Davidsen napisał(a): This is exactly what is not clear for me: what is it that identifies drive/partition as part of the array? /dev/sd name? UUID as part of superblock? /dev/d_n? If it's UUID I should be safe regardless of /dev/sd* designation?

Re: Deleting mdadm RAID arrays

2008-02-08 Thread Bill Davidsen
Marcin Krol wrote: Thursday 07 February 2008 22:35:45 Bill Davidsen napisał(a): As you may remember, I have configured udev to associate /dev/d_* devices with serial numbers (to keep them from changing depending on boot module loading sequence). Why do you care? Because

mdadm 2.6 creates slow RAID 5 while mdadm 2.5.6 rocks

2008-02-08 Thread Hubert Verstraete
Hi All, My RAID 5 array is running slow. I've made a lot of test to find out where this issue is laying. I've come to the conclusion that once the array is created with mdadm 2.6.x (up to 2.6.4), whatever the kernel you run, whatever the mdadm you use to re-assemble the array, the array's

Re: mdadm 2.6 creates slow RAID 5 while mdadm 2.5.6 rocks

2008-02-08 Thread michael
Quoting Hubert Verstraete [EMAIL PROTECTED]: Hi All, My RAID 5 array is running slow. I've made a lot of test to find out where this issue is laying. I've come to the conclusion that once the array is created with mdadm 2.6.x (up to 2.6.4), whatever the kernel you run, whatever the mdadm you

Re: Any inexpensive hardware recommendations for PCI interface cards?

2008-02-08 Thread Iustin Pop
On Fri, Feb 08, 2008 at 08:54:55AM -0500, Justin Piszcz wrote: The promise tx4 pci works great and supports sata/300+ncq/etc $60-$70. Wait, I have used tx4 pci up until ~2.6.22 and it didn't support AFAIK ncq. Are you sure that current driver supports NCQ? I might then revive that card :)

Re: Any inexpensive hardware recommendations for PCI interface cards?

2008-02-08 Thread Justin Piszcz
On Fri, 8 Feb 2008, Iustin Pop wrote: On Fri, Feb 08, 2008 at 08:54:55AM -0500, Justin Piszcz wrote: The promise tx4 pci works great and supports sata/300+ncq/etc $60-$70. Wait, I have used tx4 pci up until ~2.6.22 and it didn't support AFAIK ncq. Are you sure that current driver supports

Re: Any inexpensive hardware recommendations for PCI interface cards?

2008-02-08 Thread Iustin Pop
On Fri, Feb 08, 2008 at 02:24:15PM -0500, Justin Piszcz wrote: On Fri, 8 Feb 2008, Iustin Pop wrote: On Fri, Feb 08, 2008 at 08:54:55AM -0500, Justin Piszcz wrote: The promise tx4 pci works great and supports sata/300+ncq/etc $60-$70. Wait, I have used tx4 pci up until ~2.6.22 and it

Re: Any inexpensive hardware recommendations for PCI interface cards?

2008-02-08 Thread Justin Piszcz
On Fri, 8 Feb 2008, Iustin Pop wrote: On Fri, Feb 08, 2008 at 02:24:15PM -0500, Justin Piszcz wrote: On Fri, 8 Feb 2008, Iustin Pop wrote: On Fri, Feb 08, 2008 at 08:54:55AM -0500, Justin Piszcz wrote: The promise tx4 pci works great and supports sata/300+ncq/etc $60-$70. Wait, I have

ICH10 support

2008-02-08 Thread Mike Myers
Hi, I'm thinking about building a few storage servers that use PMP's via the new ICH10R southbridges that are supposed to support FIS based switching (with PMPs). These boards should ship in a couple months (with the P45 Northbridges) according to my distributors. My question is when should

Re: Any inexpensive hardware recommendations for PCI interface cards?

2008-02-08 Thread Justin Piszcz
On Fri, 8 Feb 2008, Bill Davidsen wrote: Steve Fairbairn wrote: Can anyone see any issues with what I'm trying to do? No. Are there any known issues with IT8212 cards (They worked as straight disks on linux fine)? No idea, don't have that card. Is anyone using an array with disks

Re: Any inexpensive hardware recommendations for PCI interface cards?

2008-02-08 Thread Jeff Breidenbach
Does anyone recommend any inexpensive (probably SATA-II) PCI interface cards? See this message and surrounding thread from November 2007 on the linux-ide list. http://www.mail-archive.com/[EMAIL PROTECTED]/msg12726.html - To unsubscribe from this list: send the line unsubscribe linux-raid in the

Re[4]: mdadm 2.6.4 : How i can check out current status of reshaping ?

2008-02-08 Thread Andreas-Sokov
Hello, Neil. YOU WROTE : 5 февраля 2008 г., 13:10:00: On Tuesday February 5, [EMAIL PROTECTED] wrote: Feb 5 11:56:12 raid01 kernel: BUG: unable to handle kernel paging request at virtual address 001cd901 This looks like some sort of memory corruption. Possible you have bad memory,

RAID5 how chage chunck size from 64 to 128, 256 ? is it possible ?

2008-02-08 Thread Andreas-Sokov
Hi linux-raid. RAID5 how chage chunck size from 64 to 128, 256 ? is it possible ? Somebody did this ? -- Best regards, Andreas-Sokov - To unsubscribe from this list: send the line unsubscribe linux-raid in the body of a message to [EMAIL PROTECTED] More majordomo info at