WaaSuuuup Roger,

Good to hear from you. That is exactly what were considering 1 cold standby
instead of clustering. All we would have to do is change the World Wide Name
of our HBA fiber card in the SAN switch and were back up and running. Thanks
for the info I will follow up with that, and will make sure I post my
findings back here when I have them.

-TOny

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Roger Seielstad
Sent: Friday, January 09, 2004 10:44 AM
To: Exchange Discussions
Subject: RE: Location of Transaction Logs

Yo, Tony! I see you survived the trip back from Orlando...

If I remember correctly, you can bypass caching at the RAID group (not the
LUN) level through Navisphere. I don't currently have access to mine to
check, but I know I asked that question. 

Another option is to change the read/write cache percentage to be mostly
read caching and reduce the potential exposure.

I'd suggest skipping boot-from-SAN, but that's just me. The only reason I'd
see boot-from-SAN helping is if you are going to have identical cold standby
hardware available to replace in the case of system failure. I'm not sure
you want to use non-identical hardware for cold spares in that kind of case.

Roger
--------------------------------------------------------------
Roger D. Seielstad - MTS MCSE MS-MVP
Sr. Systems Administrator
Inovis Inc.


> -----Original Message-----
> From: Anthony Sollars [mailto:[EMAIL PROTECTED] 
> Sent: Friday, January 09, 2004 12:11 PM
> To: Exchange Discussions
> Subject: Location of Transaction Logs
> 
> 
> 
> Hello all,
> 
> ����������� 
> ����������� We are planning a global Exchange upgrade here to 
> 2003 and are
> researching an issue that an email admin here is having with 
> the location of
> the Transaction logs in our new Exchange Architecture. We are 
> planning to
> Deploy Quad-proc servers that are boot-to-SAN on an EMC 
> Clarion CX600. The
> OS, Logs and DATA will be stored on the SAN. The problem is 
> we are not sure
> if the transaction log data will be secure in the case of 
> server outage,
> since the SAN utilizes a very hefty cache before it writes 
> the data to SAN
> disk. We have already begun queuing our SAN vendor and MS, 
> but they do take
> awhile in complex questions such as these, I was wondering if 
> anyone in the
> list has deployed Exchange 200x on a SAN and has come across 
> this question?
> 
> Thanks again,
> 
> Anthony L. Sollars��������������������______________
> Technology Consultant
> Information Technology Division, PACCAR Inc.
> 
> 
> 
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