On Wednesday 02 June 2004 19:00, Stefan G. Weichinger wrote: >Hi, Jon, > >on Donnerstag, 03. Juni 2004 at 00:48 you wrote to amanda-users: > >JL> On Solaris x86, one thing that terribly degrades IDE disk >JL> performance is if the driver does not use dma but uses pio mode. >JL> There are even reports of diagnostic tools saying the drive is >JL> using dma, but digging deeper determines that pio mode is in > use. > >JL> I know not how to check or configure the HD driver on linux, >JL> but it might be something to check. > >OT: > >hdparm may help. > >Try > >hdparm -i /dev/hdX > >(substitute X with the fitting char for your prim/sec Master/Slave >whatever ....)
And then to measure how fast that drive can go, do "hdparm -tT /dev/hdX" It should look something like this: [EMAIL PROTECTED] root]# hdparm -tT /dev/hda /dev/hda: Timing buffer-cache reads: 920 MB in 2.01 seconds = 458.47 MB/sec Timing buffered disk reads: 170 MB in 3.00 seconds = 56.58 MB/sec Thats a fairly fresh drive, older ones will be a little slower. Extended study of 'man hdparm' can be enlightening. -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) 99.23% setiathome rank, not too shabby for a WV hillbilly Yahoo.com attorneys please note, additions to this message by Gene Heskett are: Copyright 2004 by Maurice Eugene Heskett, all rights reserved.
