- Community Home
- >
- Storage
- >
- Midrange and Enterprise Storage
- >
- HPE EVA Storage
- >
- EVA4400 and IOPS sizing. Need some Help.
Categories
Company
Local Language
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Discussions
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Community
Resources
Forums
Blogs
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
12-03-2014 08:13 AM
12-03-2014 08:13 AM
EVA4400 and IOPS sizing. Need some Help.
Hi to all IT Workers.
We have a SAP implementation that was done without an initial Sizing. The Sizing was done recently and we need to do some upgrades to our actual Hardware.
My current infrastructure is this:
- EVA4400, Two controllers HSV300, Brocade SAN Switch x2 8/12 4Gb, 36 FC 300 GB 10k Disks in three disks enclosures (there are only one Disk Group for all 36 disks).
- c7000 enclosure
- 7 HP BL460c G6 Servers (64 GB RAM and duble Xeon 5400 family).
The software implementation is ESXi 5.5.
My concern is about Sotage I/O needs. The Sizing (SAP + HP) give me a need of 1300 IOPS for the Production System.
I got this formula to calculate disks needed for this load (http://www.vmware.com/files/pdf/partners/hp/hp_EVA_vmware_SRM-4AA2-8848ENW.pdf):
N° Disk Needed: (Total IOPS * RAID Penalty * write %) + (Total IOPS * read %)
_________________________________________________
Raw performance of the disks (36 *125)
So, i get this for RAID5, 33% write and 66% read for SQL DB, 36 disks of 125 IOPS:
N° Disk Needed: (1300*4*33) + (1300*66)
_____________________
4500
So i get a need of 58 disks for only one SQL Server with SAP. But, in all 7 ESXi server i have at least 6 SQL SAP Servers... and others VMs...
Is that sizing formula OK? Do i need to consider somthing else?
I configure EVA LUNs to optimize access paths by configuring Path A, Path B, PAth A, Path B, etc...
ESX rotates paths in a Round Robin fashion every 1 io. HBA Queue Depth is on 64...
Hope for some help here. Do yo have any other recomendation?
Regards,
A.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
12-03-2014 10:25 AM
12-03-2014 10:25 AM
Re: EVA4400 and IOPS sizing. Need some Help.
I just realize of my error... 66% is 66/100... that is 0,66.
Regard!
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
12-04-2014 01:08 PM
12-04-2014 01:08 PM
Re: EVA4400 and IOPS sizing. Need some Help.
Hi asoncini,
I suggest to also review the following document which offers a few best practices and performance tips:
Some of the items discussed in the document around performance improvements -
Tuning Disk.Sched.NumReqOutstanding Disk.DiskMaxIOSize
Using the paravirtualized virtual SCSI adapter
Using adaptive queuing (not recommended in most cases)
Regards,
YV
InfrastructureMania: Find the most risks and win an iPad Air 2
http://www.continuitysoftware.com/outbound/availability-risks-contest