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Re: Am I using my hard drives right?



On Mon, Jan 12, 2004 at 04:17:28AM -0500, Antonio Rodriguez wrote:
> hdparm -tT /dev/hda
> hdparm -i /dev/hda

What do these numbers tell you?  Sucks, or joy?
Like I said, I tried to grok the zen of hdparm, but I threw up my hands 
-- it all looks very experimental and there is very little clear cut 
"when x, do y" advice.

I've running 2.4.24 and have done nothing special with hdparm; is it 
*possible* there is nothing to do, or is hdparm tweaking *always* 
required?

desk:/home/tom# hdparm -i /dev/hda
 
/dev/hda:
 
 Model=Maxtor 54610H6, FwRev=JAC61HU0, SerialNo=F603SFXC
 Config={ Fixed }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57
 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=90045648
 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4
 DMA modes:  mdma0 mdma1 mdma2
 UDMA modes: udma0 udma1 udma2
 AdvancedPM=yes: disabled (255) WriteCache=enabled
 Drive conforms to: ATA/ATAPI-6 T13 1410D revision 0:
 
 * signifies the current active mode
 
desk:/home/tom# hdparm -tT /dev/hda
 
/dev/hda:
 Timing buffer-cache reads:   1916 MB in  2.00 seconds = 958.00 MB/sec
 Timing buffered disk reads:   92 MB in  3.02 seconds =  30.46 MB/sec



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