Re: Exchange 2007 mailbox storage Design

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At least you didn't say SATA.

"Missy Koslosky" <missy@xxxxxxxxxxxxxxxxxx> wrote in message news:%23NzKOhJNJHA.6124@xxxxxxxxxxxxxxxxxxxxxxx
I would question the cost comment, Ed. If Chua were to use DAS instead of a SAN for disk, the cost could be greatly reduced for CCR. While many folks feel they need the SAN to protect data, that really goes back to when the only clustering option was SCC or MSCS with that horrid single point of failure in the database. With CCR, there are two copies of the data, and two copies of data on tier 2 storage are always better than one copy of data on tier 1 storage.

Chua, is there any reason you're tied to the SAN? There's really no need to use it for CCR clusters - it's prohibitively expensive and harder to manage. DAS tends to be a better solution for CCR.

Missy
(waiting for Ed to slam me for waiting so long to jump in the thread)

"Ed Crowley [MVP]" <curspice@xxxxxxxxxx> wrote in message news:%23DdmzF%23LJHA.1160@xxxxxxxxxxxxxxxxxxxxxxx
That's true, but you get a level of redundancy that you don't get with SCC. I've never understood the business value of SCC, but CCR seems like it has a compelling story even with the extra cost for storage.
--
Ed Crowley MVP
"There are seldom good technological solutions to behavioral problems."
.

"chua" <chua@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message news:9909D982-B1D9-4F35-B5C8-42F3EEA7B35A@xxxxxxxxxxxxxxxx
However, For exchange CCR for sure is recommened to use 2 different set of
disks for Active n passive mailboxes.. so it is consider more disk needed
than 2003 clusters. isn't it?

Reg,
Chua

"Ed Crowley [MVP]" wrote:

Exchange 2007 doesn't require more disks than Exchange 2003 for the same
load in any situation, and if you add memory, you should be able to install
fewer.
--
Ed Crowley MVP
"There are seldom good technological solutions to behavioral problems."
..

"chua" <chua@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:107966EB-8489-4F31-923B-C7791AED1DFD@xxxxxxxxxxxxxxxx
> Hi,
>
> u guys suspect eve 4 harddisks (raid 10) not enough too (for database > and
> logs)? i used the Exchange capacity calculator, it recommends 4 > disks
> (raid
> 10) for Database and 2 disks (raid 1) for Logs. Which means i will > need a
> total of 12 disks (6 disks each) for active and passive mailbox > servers.
> Isn't a more expensive approach for my storage investment? 1 entire
> storage
> enclosure just for my Exchange design.. Just don't make sense to me > to
> tell
> customer to invest the number of disks on Exchange 2007. As > Exchange2007
> preach, no requirements for storage in CCR design. But now , we have > to
> invest so much in storage for CCR deisgn.
>
> regards,
> Chua
>
> "Ed Crowley [MVP]" wrote:
>
>> Probably lots more.
>> -- >> Ed Crowley MVP
>> "There are seldom good technological solutions to behavioral >> problems."
>> ..
>>
>> "Martin Blackstone [MVP]" <martinb@xxxxxxxxxxxxx> wrote in message
>> news:%23S%23epmJLJHA.1556@xxxxxxxxxxxxxxxxxxxxxxx
>> > In other words you need more physical hard drives.
>> >
>> > "Ed Crowley [MVP]" <curspice@xxxxxxxxxx> wrote in message
>> > news:eENwzhJLJHA.5692@xxxxxxxxxxxxxxxxxxxxxxx
>> >> Not enough to handle the I/O requirements for 600 users, unless >> >> they
>> >> log
>> >> on very infrequently and not at the same time.
>> >> -- >> >> Ed Crowley MVP
>> >> "There are seldom good technological solutions to behavioral
>> >> problems."
>> >> .
>> >>
>> >> "chua" <chua@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
>> >> news:BAD33E4B-80C1-4D8F-9252-A7C1F6A595D1@xxxxxxxxxxxxxxxx
>> >>> Hi Ed,
>> >>>
>> >>> Pardon for asking silly question. What u mean i do not have >> >>> enough
>> >>> spindles?
>> >>> not in enough for the passive mailboxes (2 mirror disks)?
>> >>>
>> >>> regards,
>> >>> steve
>> >>>
>> >>>
>> >>> "Ed Crowley [MVP]" wrote:
>> >>>
>> >>>> You're don't have enough spindles.
>> >>>> -- >> >>>> Ed Crowley MVP
>> >>>> "There are seldom good technological solutions to behavioral
>> >>>> problems."
>> >>>> ..
>> >>>>
>> >>>> "chua" <chua@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
>> >>>> news:6A4A6458-522C-4526-9AD8-05A0A9489D4A@xxxxxxxxxxxxxxxx
>> >>>> > For 600 users, Yes, i have another 2 boxes for HT/CAS.
>> >>>> >
>> >>>> >
>> >>>> > "Oliver Moazzezi [MVP]" wrote:
>> >>>> >
>> >>>> >> Before we talk RAID (without getting into any talks about >> >>>> >> having
>> >>>> >> logs and
>> >>>> >> database on the same RAID set (although a different logical
>> >>>> >> partition).
>> >>>> >>
>> >>>> >> How many users is this for? And you have hardware for CAS >> >>>> >> and HT
>> >>>> >> roles?
>> >>>> >>
>> >>>> >> Oliver
>> >>>> >>
>> >>>> >>
>> >>>> >>
>> >>>>
>> >>>>
>> >>>>
>> >>
>> >>
>> >
>>
>>
>>







.

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