[K12OSN] Sever load , calculating
Barry Cisna
brcisna at eazylivin.net
Sat Sep 11 13:45:15 UTC 2010
Hello All,
Some findings after doing an hdparm -t -T on this servers HD's.
1. On both of the HD's *cached reads* they are doing a respectable
870mb/sec
2. On both Hd's the *buffered reads* they doing a sucky 250kb/sec !!!
This is with no one accessing the server too.
Anyone have any ideas as to why the buffered reads are so pathetic?
These are a pair of new a couple months ago WDC drives. I used an 80
conductor IDE cable. Is it possible not having hyper-threading enabled
in the system bios(I think) that this is tanking the buffered reads?
dmegs shows drives are doing UDMA 133mhz.
CPU hyper-threading disabled,,,:(.
hda: irq timeout: status=0xd0 { Busy }
ide: failed opcode was: 0xb0
hda: irq timeout: status=0xd0 { Busy }
ide: failed opcode was: 0xb0
hda: irq timeout: status=0xd0 { Busy }
ide: failed opcode was: 0xb0
hda: status error: status=0x58 { DriveReady SeekComplete DataRequest }
,,* many lines of the above failed opcode hda*
hdb drive shows none of these errors..?
Looks like something is haywire with hda drive to me,or is it simply never 'catching up'
from disk writing?
I have noticed when in the server room the HD light on this server is in fact running
like mad,but not all the time.
I have not gotten any complaints (yet) of slowness in regards to file
access but I cant imagine it can be anywhere close to what it should be
with these readings.
Bottom line I am kinda stuck as of now as this is what I set up.
Sorry for long post again.
Take Care,
BC
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