Re: [Qemu-devel] [RFC] Disk integrity in QEMU

[Avi Kivity]

Jens Axboe wrote:
> > IDE is limited to 256 sectors per transaction, or 128KB.  If a sync
> > transaction takes 5 ms, then your write rate is limited to 25 MB/sec. 
> > It's much worse if you're allocating qcow2 data, so each transaction is
> > several sync writes.
> >     
>
> No it isn't, even most IDE drives support lba48 which raises that limit
> to 64K sectors, or 32MB.
>   

Right, and qemu even supports this.  Thanks for the correction.

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