Re: Disk partition for Ex2k with Disaster recovery....
- From: "John Tolmachoff \(Lists\)" <johnlist@xxxxxxxxxxxxxxxxxxx>
- To: "'[ExchangeList]'" <exchangelist@xxxxxxxxxxxxx>
- Date: Wed, 16 Jul 2003 11:18:48 -0700
For the amount of users and such, you can either use a 2 channel controller
for the databases and use the on-board EIDE for the OS, page and transaction
logs, or use 4 channels, on for each disk. Use hardware raid 1 for the
databases.
I do not like using hardware raid on the disks that will hold the page
files, as mirror of the page file can cause a slight performance hit. I
welcome any information that indicates it is fine to mirror the page file.
John Tolmachoff MCSE CSSA
Engineer/Consultant
eServices For You
www.eservicesforyou.com
-----Original Message-----
From: David Liles [mailto:dave@xxxxxxxxxxxxxxxxxxx]
Sent: Wednesday, July 16, 2003 10:54 AM
To: [ExchangeList]
Subject: RE: [exchangelist] Re: Disk partition for Ex2k with Disaster
recovery....
This being the case, is it better to have two 2-channel controllers or two
4-channel controllers? Or does it make much difference?
-----Original Message-----
From: John Tolmachoff (Lists) [mailto:johnlist@xxxxxxxxxxxxxxxxxxx]
Sent: Tue 7/15/2003 8:28 PM
To: [ExchangeList]
Cc:
Subject: [exchangelist] Re: Disk partition for Ex2k with Disaster
recovery....
Raid 5 should not be used for any kind of logs. Logs by nature are read and
write intensive. Raid 5 will slow down on heavy write.
If you can only have 4 drives, use 2 drives Raid one for OS, Page file and
logs. Use 2 drives Raid 1 for database.
If you can have 6 drives, use 2 drives raid 1 for OS and page file, 2 drives
raid 1 for transaction log and 2 drives Raid 1 for database.
It kind of depends on the work load too.
How many users and what kind of usage?
John Tolmachoff MCSE CSSA
Engineer/Consultant
eServices For You
www.eservicesforyou.com
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