On Thu, Mar 06, 2008 at 04:32:38PM +0000, Stuart Henderson wrote: > On 2008-03-06, Jose Fragoso <[EMAIL PROTECTED]> wrote: > > Hi, Stuart! Thanks for the hint. # scsi -f /dev/rsd0c -m 8 > > IC: 0 > > ABPF: 0 > > CAP: 0 > > DISC: 1 > > SIZE: 0 > > WCE: 0 > > MF: 0 > > RCD: 0 > > Demand Retention Priority: 0 > > Write Retention Priority: 0 > > Disable Pre-fetch Transfer Length: 65535 > > Minimum Pre-fetch: 0 > > Maximum Pre-fetch: 65535 > > Maximum Pre-fetch Ceiling: 65535 > > WCE being 0, means it is not enabled? > > Correct > > > If so, how can one enable it? > > As far as I know, you should normally have write cache disabled > on SCSI. I don't see how this can account for 10 seconds to update > a dir entry... > > You can edit the code page with scsi(8). This change is saved > permanently. But I think you should leave it alone.
It is save to use. This is just mfgs being conservative. Got a UPS? use it! > > > From > > top, I see mv goes to sleep state. On the WAIT, it showsgetblk. CPU usage > > is 0.05%. Thanks in advance for any help. Regards, Josi > > "What does top say? look at what state mv is in, **> WHAT CPU% IS USED > IN INTERRUPT <**, whether there's something else running that hits the > disks." > > Can you just paste in all the top output while it's running? > (top|cat is easy to paste).
