FW: EMC monitoring - slightly OT
- From: "Bobak, Mark" <Mark.Bobak@xxxxxxxxxxxxxxx>
- To: <henry@xxxxxxxxxxxxxxx>
- Date: Wed, 15 Mar 2006 10:45:12 -0500
Henry,
I forwarded your question to one of our Sys Admins. See below for what
he had to say.
-Mark
--
Mark J. Bobak
Senior Oracle Architect
ProQuest Information & Learning
"Exception: Some dividends may be reported as qualified dividends but
are not qualified dividends. These include:
* Dividends you received on any share of stock that you held for less
than 61 days during the 121-day period that began 60 days before the
ex-dividend date. The ex-dividend date is the first date following the
declaration of a dividend on which the purchaser of a stock is not
entitled to receive the next dividend payment. When counting the number
of days you held the stock, include the day you disposed of the stock
but not the day you acquired it. See the examples below. Also, when
counting the number of days you held the stock, you cannot count certain
days during which your risk of loss was diminished. See Pub. 550 for
more details."
--IRS, Form 1040-A Instruction Booklet, Line 9b: Qualified Dividends
________________________________
From: Suiter, Thomas
Sent: Wednesday, March 15, 2006 10:38 AM
To: Bobak, Mark
Subject: RE: EMC monitoring - slightly OT
As to more "nice" monitoring tools it all depends upon what you want to
pay (or not):
If you are into the whole integrated world view with larger $$, you can
use ECC with PerformanceManager, that will tie in end to end: Database
tables (which are hot, I/O's to each, etc), host information (cpu,
memory, etc), san switch (ports running at max throughput or counting
errors degrading perf), than into the storage
Many people use navisphere analyzer which is a fairly inexpensive add on
to navisphere that you can monitor your clariion, this will give storage
specific information: physical disk getting hot, cache information,
connectivity port information, etc (highly recommend this, gives nice
trend information using graphs)
Lastly you can turn on a snmp agent for the clariion and allow read
requests, we have the above two so I don't know what information you
would be able retrieve from this; I assume some performance information
should be available
For his specific problem he should also be able to continue to use the
navicli command with the "getcache" attribute to retrieve information
about each individual SP (after you have enable statistics logging
inside each sp, else you won't get meaningful information): meaningful
switches would be:
-pdp - percent of dirty pages in cache (pages modified in cache but not
written to disk, high number means most write changes are occurring in
cache rather than in physical disk)
-high - write cache high watermark (when percent dirty pages reaches
this force flushing of cache)
-low - write cache low watermark (force flush cache down to this
watermark than stop flushing)
These two commands should retrieve what I believe he's interested in
navicli -h <spA ip address> getcache -pdp -high -low
navicli -h <spB ip address> getcache -pdp -high -low
here is the output from one of our clariions:
navicli -h 192.168.20.169 getcache -pdp -high -low
Prct Dirty Cache Pages = 49
High Watermark: 80
Low Watermark: 60
On the SP at 192.168.20.169 if 80% of cache is dirty it will flush cache
down to 60%, it currently is at 49%
________________________________
From: Bobak, Mark
Sent: Wednesday, March 15, 2006 9:53 AM
To: Suiter, Thomas
Subject: FW: EMC monitoring - slightly OT
Thomas,
This question comes from an Oracle mailing list I'm on. What tools do
you use to monitor our EMC boxes?
-Mark
--
Mark J. Bobak
Senior Oracle Architect
ProQuest Information & Learning
"Exception: Some dividends may be reported as qualified dividends but
are not qualified dividends. These include:
* Dividends you received on any share of stock that you held for less
than 61 days during the 121-day period that began 60 days before the
ex-dividend date. The ex-dividend date is the first date following the
declaration of a dividend on which the purchaser of a stock is not
entitled to receive the next dividend payment. When counting the number
of days you held the stock, include the day you disposed of the stock
but not the day you acquired it. See the examples below. Also, when
counting the number of days you held the stock, you cannot count certain
days during which your risk of loss was diminished. See Pub. 550 for
more details."
--IRS, Form 1040-A Instruction Booklet, Line 9b: Qualified Dividends
________________________________
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Henry Poras
Sent: Tuesday, March 14, 2006 12:47 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: EMC monitoring - slightly OT
I'm trying to find some simple way of monitoring our EMC SAN (Clariion).
I assume emc provides something, but I haven't turned it up as of yet.
All I really need is a way to check out our cache (is it saturated yet?)
and disk i/o utilization. I have found navicli which seems to be good
for providing static information (how things are configured), but not so
good for dynamic. I've been looking at the EMC web site and will head
back there, but they don't seem to be good at posting docs online.
Thanks.
Henry
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