Here is our goal:
Setup new servers to turn our entire physical computer network into 3 physical groups, which are:
- Server 1 - NAS - Openfiler/NexentaStor CE/FreeNAS/(Other Suggestions)
- Server 2 - ESXi Server with the following VM's:
- VM1 - AD/DNS/DHCP - Windows SBS 2008
- VM2 - SQL Server 2008 r2 / Database Tier - Windows Server 2008 R2
- VM3 - Sharepoint 2010 / Applicaton Server Tier - Windows Server 2008 R2
- VM4 - IIS / Web Front End Tier - Windows Server 2008 R2
- VM5 - Windows Multipoint Server 2011 - Supporting 10 Clients / Some with 2D Cad
- 10 Clients - Atrust M220 WMS Zero Clients
Question:
For servers 1 & 2, I would like to know what configuration ensures maximum performance?
Configuration means:
- Hot Swap Hard Disk Options
- iSCSI targets
- Regular volumes
- 7500 SAS disks
- 10/15K SAS disks
- VM's on iSCSI target on NAS machine
- VM's on DAS
- RAID 0/1/5/10
- No RAID and ZFS file system
- Memory Configurations
- 2/4/8/16/32 Gb DDR3 Memory
- CPU Configuration
- Xeon / Opteron
- 2/4/8 Cores
- 1/2 Physical CPU's
- OS
- For NAS server, Openfiler OR NexentaStor CE OR FreeNAS OR some other free option
Answer
It's quite a bit to digest. This is a solution that could work, and I am a proponent of ZFS-based solutions, but I'd initially ask why you wish to have a storage server with only one VM host. Granted, you could expand to multiple hosts over time... But looking at your setup plan, I'd almost recommend a large standalone server with robust local storage. The NAS wouldn't buy you anything with one VM host.
Think something like a current-model HP ProLiant DL380 with 8 or more disks (RAID 1+0, please), running ESXi with plenty of RAM to handle your setups without oversubscribing. Two 6-core CPUs should round it out.
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