On Tue, Nov 19, 2013 at 09:02:41AM +0100, Stefan Priebe wrote:
...
> >You might be able to vary this behavior by experimenting with sdparm,
> >smartctl or other tools, or possibly with different microcode in the drive.
> Which values or which settings do you think of?
...
Off-hand, I don't know. Probably the first thing would be
to compare the configuration of your 520 & 530; anything that's
different is certainly worth investigating.
This should display all pages,
sdparm --all --long /dev/sdX
the 520 only appears to have 3 pages, which can be fetched directly w/
sdparm --page=ca --long /dev/sdX
sdparm --page=co --long /dev/sdX
sdparm --page=rw --long /dev/sdX
The sample machine I'm looking has an intel 520, and on ours,
most options show as 0 except for
AWRE 1 [cha: n, def: 1] Automatic write reallocation enabled
WCE 1 [cha: y, def: 1] Write cache enable
DRA 1 [cha: n, def: 1] Disable read ahead
GLTSD 1 [cha: n, def: 1] Global logging target save disable
BTP -1 [cha: n, def: -1] Busy timeout period (100us)
ESTCT 30 [cha: n, def: 30] Extended self test completion time (sec)
Perhaps that's an interesting data point to compare with yours.
Figuring out if you have up-to-date intel firmware appears to require
burning and running an iso image from
https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=18455
The results of sdparm --page=<whatever> --long /dev/sdc
show the intel firmware, but this labels it better:
smartctl -i /dev/sdc
Our 520 has firmware "400i" loaded.
-Marcus Watts
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