Hi,
We are planning to implement SAP ERP along with other products like BI, BOBJ, SRM, Portal and PO on Oracle 12 and RHEL7 environment and our server requirement is-
1) Almost 120000 SAPS
2) 30 TB usable storage.
3) VMware for all systems
Different Hardware OEMs have proposed different architecture related to IOPS and CPU and I have few doubts on IOPS as OEMs have proposed mix architecture of SSD, SAS and NL SAS disks, (Production will have SSD and SAS only).
1) How the filesystem should be design as per storage specific like Production file systems on RAID 10 and DEV and QAS on RAID 5 or 6.
2) Some vendors has proposed SSD for cache and licensing for auto tearing in which hot data will automatically move to SSD for better IOPS from SAS disks.
3) Some vendors has proposed SSD for some file system too in PRD environment like for BW and BOBJ as they need high IOPS and redolog file system too (origlog and mirrlog).
What is standard best practice, we are considering 20% SSD to meet our IOPS requirement as per SAPS calculation, We don't want to install systems on pure SSD disks as we can get the required IOPS from 20%SSD and remaining SAS drives.
We are also planning to implement D2D backup and then tape out and wants to keep 1 day backup on disk.
a) Shall we consider SSD only for caching or for filesystem too ??
b) What all filesystem we should plan on SSD ??
c) What different architecture we should consider for ERP (OLTP) and BW (OLAP) ?
d) What should be RAID design for PRD and non PRD environment ??
Saurabh Mishra