On Thu, 31 May 2007, David Anderson wrote:
.... snip .....
Other:
-Others have reported that Sil3124 based SATA expansion cards work well with
Solaris.
[Sorry - don't mean to hijack this interesting thread]
I believe that there is a serious bug with the si3124 driver that has
not been addressed. Ben Rockwood and I have seen it firsthand, and a
quick look at the Hg logs shows that si3124.c has not been changed in
6 months.
Basic description of the bug: under heavy load (lots of I/O ops/Sec)
all data from the drive(s) will completely stop for an extended
period of time - 60 to 90+ Seconds.
There was a recent discussion of the same issue on the Solaris on x86
list ([EMAIL PROTECTED]) - several experienced x86ers have
seen this bug and found the current driver unusable. Interestingly,
one individual said (paraphrased) ... "don't see any issues" and then
later ... "now I see it and it was there the entire time".
Recommendation: If you plan to use the 3124 driver, test it yourself
under heavy load. A simple test with one disk drive will suffice.
In my case, it was plainly obvious with one (ex Sun M20) drive and a
UFS filesystem - all I was doing was tarring up /export/home to
another drive. Periodically the tar process would simply stop (iostat
went flatline) - it looked like the system was going to crash - then
(after 60+ Secs) the tar process continued as if nothing had happened.
This was repeated 4 or 5 times before the 'tar cvf' (of around 40Mb of
data) completed successfully.
Regards,
Al Hopper Logical Approach Inc, Plano, TX. [EMAIL PROTECTED]
Voice: 972.379.2133 Fax: 972.379.2134 Timezone: US CDT
OpenSolaris Governing Board (OGB) Member - Apr 2005 to Mar 2007
http://www.opensolaris.org/os/community/ogb/ogb_2005-2007/
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