> >First off, some disk caches are getting > 10megs, that's a lot
> >of potnetial seeking after loosing power depending on the cache
> >contents...
>
> I've heard that most modern drives reserve a contiguous area of the
> disk the size of the cache near where the heads park to dump any
> cache co
Pete French writes:
> All very interesting, but a small point has been forgotten
> hasnt it ? The way I read this thread is that until recentlly
> write-caching was enabled by default and has now been disabled (hence
> the original obseravtion of disc performance dropping).
>
> I havent noticed t
* Mike Meyer <[EMAIL PROTECTED]> [010313 01:10] wrote:
> Helge Oldach <[EMAIL PROTECTED]> types:
> > Generally I'd say it's not a bad idea to have write caching on the disk
> > enabled - assuming that it is decently implemented. BTW, don't SCSI
> > disks use write cacheing as well? :-)
>
> Yes, t
* Helge Oldach <[EMAIL PROTECTED]> [010313 01:07] wrote:
> Alfred Perlstein:
> >* Helge Oldach <[EMAIL PROTECTED]> [010313 00:48] wrote:
> >> Alfred Perlstein:
> >> >If basically running with blind write caching turned on is akin to
> >> >running your filesystem in async mode. This is because wri
Helge Oldach <[EMAIL PROTECTED]> types:
> Generally I'd say it's not a bad idea to have write caching on the disk
> enabled - assuming that it is decently implemented. BTW, don't SCSI
> disks use write cacheing as well? :-)
Yes, they do. And it's recommended that you turn it off if you turn on
so
Alfred Perlstein:
>* Helge Oldach <[EMAIL PROTECTED]> [010313 00:48] wrote:
>> Alfred Perlstein:
>> >If basically running with blind write caching turned on is akin to
>> >running your filesystem in async mode. This is because write
>> >caching gives the drive license to lie about completing a wr
* Helge Oldach <[EMAIL PROTECTED]> [010313 00:48] wrote:
> Alfred Perlstein:
> >* Kevin Oberman <[EMAIL PROTECTED]> [010312 13:46] wrote:
> >> How serious is the possible corruption issue, anyway. The loss in
> >> performance is pretty drastic although it may be that dd is an
> >> especially bad c
Alfred Perlstein:
>* Kevin Oberman <[EMAIL PROTECTED]> [010312 13:46] wrote:
>> How serious is the possible corruption issue, anyway. The loss in
>> performance is pretty drastic although it may be that dd is an
>> especially bad case, but I really don't like to corrupt my disks,
>> either.
>
>If
