Re: raidframe: Initiating parity re-write time

["Jonathan A. Kollasch" <jakllsch%kollasch.net@localhost>]

On Tue, May 24, 2011 at 05:49:53PM +0000, Michael van Elst wrote:
> uhel%gmx.net@localhost writes:
> 
> >The time of initiating the re-write of parity with 
> >'raidctl -v -i raid0' took ~64 hours. 
> >Is that a timeframe one could expect?
> >The system is an Intel atom and the size of the disks is 698GB.
> 
> You should expect something like 5 hours.
> 
> >pciide0: bus-master DMA support present, but unused (no driver support)
>                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> Doesn't look nice and might be the reason for the slowness.

Probably is, that'll force you back to PIO.

> 
> >pciide0: vendor 0x10de product 0x0ab4 (rev. 0xb1)
> 
> That's NVIDIA chipset and apparently not fully supported even in -current.

I see some indication it's AHCI-compatible.  Probably needs IDs added to
ahcisata_pci.c.

        Jonathan Kollasch