First SAN for my company and it is breaking the bank.

pts.
Tags:
SAN
SAN spending
Storage products and equipment
On my windows 2 cpu server with 20 disks, disk queue lengths exceed 40. Windows perfmon and IOmeter benchmarks give me 0.9K IOPs for write and 2K for reads, 8K OLTP block size. #disks : 20 : 36 GB, 15K rpm, U320 scsi with two dual channel controllers with 256 MB cache each. I am moving to a SAN. How can I get double my current IO performance. In addition I also want a development/failover system with half the performance of production. production data size : 400 GB development data size : 400 GB temp table space : 100 GB each for production and develop. Log file : 100 GB each for development and production. In addition I have an application server which users upload data ( hence mainly writes). files are large : 50-100MB in uploads. All cases, 20 simultaneous access the SAN. My solution : 28, 73 GB 15K for production + temp tablespace. 28, 73 GB 10K for development/temp table space. 4 disks 146 GB, 10K for logs ( prod and develop) 8 disks 146 GB, 10K for application server. However the cost is 50% more than my budget. Also included is a tape library and d2d backup to tape. d2d window : 5 hrs. d2t window : 10 hrs. data size = 1 TB, compression ~ 20%.

Answer Wiki

Thanks. We'll let you know when a new response is added.

Here’s an article you may find useful:

http://www.tomshardware.com/storage/20041006/index.html

It references a system with 32 drives. The savings would come from using serial ata instead of scsi. By having enough serial ata controller boards you can make up for the fact that individual throughput per board is less than it would be for scsi. Of course having lots of scsi boards would be even better but since cost is a factor…

Discuss This Question:  

 
There was an error processing your information. Please try again later.
Thanks. We'll let you know when a new response is added.
Send me notifications when members answer or reply to this question.

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Forgot Password

No problem! Submit your e-mail address below. We'll send you an e-mail containing your password.

Your password has been sent to:

To follow this tag...

There was an error processing your information. Please try again later.

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Thanks! We'll email you when relevant content is added and updated.

Following