We replaced our batteries a few weeks ago. Our only problem was the CE
thought I meant 7am and arrived 12 hours too early. We are now good
until sometime around November 2009.
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[
mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of DebbieKelemen
Sent: Tuesday, June 05, 2007 1:21 PM
To: 'Midrange Systems Technical Discussion'
Subject: RE: CACHE BATT EXP 90 DAYS???
We just had to replace our batteries Friday night. The CE who came out
to
do this wasn't even quite sure where the cards were located. He pulled
just
about every panel off of both of our towers to locate the cards. He
called
our usual CE, who was working at another customer & IBM to determine
exactly
how to swap the batteries. One of the set of batteries had to be hot
swapped
to get them recognized & one had to be cold swapped. He pulled both
cards
all the way out. When he started using his car key to pop the batteries
out
of the first card it made me nervous & I offered him our set of
screwdrivers
to use instead. I was so glad that I had done a full save before he got
there!! The man had my nerves on edge. What should have been a 5
minute
job took over an hour and a half.
- Debbie Kelemen
Senior Programmer/Analyst
Chefs Catalog
5070 Centennial Blvd
Colorado Springs, CO 80919
Work: (719) 272-2617
Fax: (719) 272-2627
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[
mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Chris Bipes
Sent: Monday, June 04, 2007 2:52 PM
To: Midrange Systems Technical Discussion
Subject: RE: CACHE BATT EXP 90 DAYS???
With mirroring you can loose several drives, an entire cage, or a
controller and still not go down, that is if you mirror at least at the
controller level. However if you loose two drive in the same raid set,
or any upstream hardware, you are down until repair. If you loose two
drives in the same raid set, you are reloading that ASP/entire system.
As for replacing the battery, you should force the error to disable and
flush the cashe to be safe, that is to prevent loosing data if the power
should fail in the minute you have the battery out. (It does happen.)
Old controllers you had to remove the card to get to the battery, new
cards are accessable with the card in place, in fact I think you can get
to them with the covers on.
Christopher Bipes
Information Services Director
CrossCheck, Inc.
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[
mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of rob@xxxxxxxxx
Sent: Monday, June 04, 2007 1:30 PM
To: Midrange Systems Technical Discussion
Subject: RE: CACHE BATT EXP 90 DAYS???
Honestly I've lost several disk drives under RAID. However, I've
experienced no downtime because of it. The drives were hot replaced and
the users didn't notice a thing. Just trying to find out what the big
advantage is to mirroring. I thought with mirroring when you lost a
drive, you still didn't lose data, but you did have to drop the system
to replace the drive. I hope I am misinformed because I fail to see the
advantage in that. Perhaps that's just how it used to be?
midrange.com
