SQL Clone
SQLServerCentral is supported by Redgate
 
Log in  ::  Register  ::  Not logged in
 
 
 


Sizing New Servers


Sizing New Servers

Author
Message
Steve Jones
Steve Jones
SSC Guru
SSC Guru (328K reputation)SSC Guru (328K reputation)SSC Guru (328K reputation)SSC Guru (328K reputation)SSC Guru (328K reputation)SSC Guru (328K reputation)SSC Guru (328K reputation)SSC Guru (328K reputation)

Group: Administrators
Points: 328361 Visits: 20105
Comments posted to this topic are about the item Sizing New Servers

Follow me on Twitter: @way0utwest
Forum Etiquette: How to post data/code on a forum to get the best help
My Blog: www.voiceofthedba.com
iposner
iposner
SSChasing Mays
SSChasing Mays (625 reputation)SSChasing Mays (625 reputation)SSChasing Mays (625 reputation)SSChasing Mays (625 reputation)SSChasing Mays (625 reputation)SSChasing Mays (625 reputation)SSChasing Mays (625 reputation)SSChasing Mays (625 reputation)

Group: General Forum Members
Points: 625 Visits: 130
I very often deal with high-end SQL Server systems: These are almost never virtualized, because there are only drawbacks, not gains that can be made from virtualizing machines that utilise all the processors in a server. Furthermore, when you're dealing with FusionIO cards, the relationship between the cards, the slots they go into and the processors controlling them because much more important.

With Enterprise Edition, the server is the cheap component - it's the licensing cost that really hits your client in the pocket. Therefore processor choice is very important: It pays to utilise high frequency, fewer core CPUs with greater amounts of L1, L2 and L3 cache to get the maximum bang for the buck.

The memory is very important too: Very often stuffing the server with the maximum amount of memory is sub-optimal: There is a maximum memory bandwidth (will be documented) when a given number of slots are filled - going beyond that will not increase the memory bandwidth -- and in some servers, necessitate a drop in the clock frequency of all memory when the optimal number of slots are filled.

Tuning HBAs is another example of a need to control the hardware - there is an optimal Queue Depth that controllers should be set to, which changes depending upon the SAN storage that sits behind it. This needs testing to squeeze out the optimal combination of low latency and high bandwidth.
iposner
iposner
SSChasing Mays
SSChasing Mays (625 reputation)SSChasing Mays (625 reputation)SSChasing Mays (625 reputation)SSChasing Mays (625 reputation)SSChasing Mays (625 reputation)SSChasing Mays (625 reputation)SSChasing Mays (625 reputation)SSChasing Mays (625 reputation)

Group: General Forum Members
Points: 625 Visits: 130
I very often deal with high-end SQL Server systems: These are almost never virtualized, because there are only drawbacks, not gains that can be made from virtualizing machines that utilise all the processors in a server. Furthermore, when you're dealing with FusionIO cards, the relationship between the cards, the slots they go into and the processors controlling them because much more important.

With Enterprise Edition, the server is the cheap component - it's the licensing cost that really hits your client in the pocket. Therefore processor choice is very important: It pays to utilise high frequency, fewer core CPUs with greater amounts of L1, L2 and L3 cache to get the maximum bang for the buck.

The memory is very important too: Very often stuffing the server with the maximum amount of memory is sub-optimal: There is a maximum memory bandwidth (will be documented) when a given number of slots are filled - going beyond that will not increase the memory bandwidth -- and in some servers, necessitate a drop in the clock frequency of all memory when the optimal number of slots are filled.

Tuning HBAs is another example of a need to control the hardware - there is an optimal Queue Depth that controllers should be set to, which changes depending upon the SAN storage that sits behind it. This needs testing to squeeze out the optimal combination of low latency and high bandwidth.
Go


Permissions

You can't post new topics.
You can't post topic replies.
You can't post new polls.
You can't post replies to polls.
You can't edit your own topics.
You can't delete your own topics.
You can't edit other topics.
You can't delete other topics.
You can't edit your own posts.
You can't edit other posts.
You can't delete your own posts.
You can't delete other posts.
You can't post events.
You can't edit your own events.
You can't edit other events.
You can't delete your own events.
You can't delete other events.
You can't send private messages.
You can't send emails.
You can read topics.
You can't vote in polls.
You can't upload attachments.
You can download attachments.
You can't post HTML code.
You can't edit HTML code.
You can't post IFCode.
You can't post JavaScript.
You can post emoticons.
You can't post or upload images.

Select a forum








































































































































































SQLServerCentral


Search