Now that I have my disk online and working, I ran a few diagnostics.
Unfortunately, I'm an idiot and don't really know if these numbers are
good or bad, so I'm hoping someone here can shed some light on this.
Here's the information on the disk.
# hdparm -i /dev/hde
Model=WDC WD450AA-00BAA0, FwRev=10.09K11, SerialNo=WD-WMA2E1419330
Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq
}
RawCHS=16383/16/63, TrkSize=57600, SectSize=600, ECCbytes=40
BuffType=3(DualPortCache), BuffSize=2048kB, MaxMultSect=16, MultSect=off
DblWordIO=no, maxPIO=2(fast), DMA=yes, maxDMA=0(slow)
CurCHS=16383/16/63, CurSects=-66060037, LBA=yes
LBA CHS=1023/256/63 Remapping, LBA=yes, LBAsects=87930864
tDMA={min:120,rec:120}, DMA modes: mword0 mword1 mword2
IORDY=on/off, tPIO={min:120,w/IORDY:120}, PIO modes: mode3 mode4
UDMA modes: mode0 mode1 mode2
According to the promotional material, the specs of the disk are as
follows:
Western Digital Caviar 45.0GB EIDE Ultra ATA/66 3.5LP 5400RPM 9.5MS
Here's the disk performance:
# hdparm -Tt /dev/hde
/dev/hde:
Timing buffer-cache reads: 128 MB in 2.75 seconds =46.55 MB/sec
Timing buffered disk reads: 64 MB in 5.00 seconds =12.80 MB/sec
And here's the current settings of the disk:
# hdparm /dev/hde
/dev/hde:
multcount = 0 (off)
I/O support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 1 (on)
keepsettings = 0 (off)
nowerr = 0 (off)
readonly = 0 (off)
readahead = 8 (on)
geometry = 5473/255/63, sectors = 87930864, start = 0
Here's the info on the /proc/ide/pdc202xx. Although the promotional
materials state that the disk its ATA/66 and the PCI board is 66MHz, it
appears to me that it's running at 33MHz. But, again, you've got to
consider the idiot factor.
# cat pdc202xx
PDC20262 Chipset.
------------------------------- General Status
---------------------------------
Burst Mode : enabled
Host Mode : Normal
Bus Clocking : 33 PCI Internal
IO pad select : 4 mA
Status Polling Period : 14
Interrupt Check Status Polling Delay : 1
--------------- Primary Channel ---------------- Secondary Channel
-------------
enabled enabled
66 Clocking enabled disabled
Mode MASTER Mode MASTER
FIFO Empty FIFO Empty
--------------- drive0 --------- drive1 -------- drive0 ----------
drive1 ------
DMA enabled: yes no no no
DMA Mode: UDMA 4 NOTSET NOTSET
NOTSET
PIO Mode: PIO 4 NOTSET NOTSET
NOTSET
Here's the info in /proc/ide/ide2/hde/settings. I have no idea how or
if I should affect these values:
name value min max
mode
---- ----- --- ---
----
bios_cyl 5473 0 65535
rw
bios_head 255 0 255
rw
bios_sect 63 0 63
rw
breada_readahead 4 0 127
rw
bswap 0 0 1
r
current_speed 0 0 69
rw
file_readahead 124 0 2097151
rw
ide_scsi 0 0 1
rw
init_speed 0 0 69
rw
io_32bit 0 0 3
rw
keepsettings 0 0 1
rw
lun 0 0 7
rw
max_kb_per_request 64 1 127
rw
multcount 0 0 8
rw
nice1 1 0 1
rw
nowerr 0 0 1
rw
number 0 0 3
rw
pio_mode write-only 0 255
w
slow 0 0 1
rw
unmaskirq 0 0 1
rw
using_dma 1 0 1
rw
Did I leave anything out? Can anyone tell me if the disk is performing
up to snuff? And if not, what should I do to improve the performance?
Thanks!
--
Steve
_______________________________________________
Redhat-list mailing list
[EMAIL PROTECTED]
https://listman.redhat.com/mailman/listinfo/redhat-list
