Hi there,
we had the same idea here, and we used option number two...
I would not consider my advice as guru-guidance and neither should
you, just more some sort of moral support... :-)
Just works fine, except some errors we get on some of the disks,
while copying big amount of stuff (2gig in several directories) from
the raid to the raid. The errors look like this:
hds: dma_intr: status=0x51 { DriveReady SeekComplete Error }
hds: dma_intr: error=0x84 { DriveStatusError BadCRC }
I have checked deja.com, but nobody seems to have those errors like that,
some had it with additional interupt losses and a reset of the disk to no-dma.
Dont really know yet, what it is, so if you get the same, and figure out what it
is
tell me.. :-)
have fun raiding
remo
PS with a raid-5 with 5 disks we get between 50-58MB/s with hdparm -t
/dev/mdx.....
(not eliminating all other processes currently running...)
Darren Nickerson wrote:
> Folks,
>
> I'm looking for the recommended way to cobble together a kernel which will
> support both RAID and the new Ultra66 66MHz ide interface cards (a nice cheap
> way to run a decently zippy RAID array, if I do say so musself ;-) ). As I
> see it, I have the following options:
>
> 1. linux-2.3.x branch
> - Ultra66 support works
> - RAID support absent
>
> 2. linux-2.2.13 + ide.2.2.13.19991111.patch + raid0145-19990824-2.2.11
> - ide patch SEEMS to apply on top of raid0145, rejects appear minor,
> but not yet tested
>
> 3. linux-2.2.13 + patch-2.2.13ac3 + ide.2.2.13.19991111.patch
> - simply a mess of rejects
>
> 4. linux-2.2.14-pre
>
