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Tested Deployment
The following tables summarize the testing environment:
Simulated Exchange Configuration:
Number of Exchange mailboxes simulated
Number of hosts
Number of mailboxes/host
Number of storage groups/host
Number of mailbox stores/storage group
Number of mailboxes/mailbox store
Number of mailbox store LUNs/storage
group
Simulated profile: I/O‟s per second per
mailbox (IOPS, include 20% headroom)
Database LUN size
Log LUN size
Backup LUN size/storage group
Total database size for performance
testing
% storage capacity used by Exchange
database**
**Storage performance characteristics change based on the
percentage utilization of the individual disks. Tests that use a small
percentage of the storage (~25%) may exhibit reduced throughput if
the storage capacity utilization is significantly increased beyond what
is tested in this paper.
Primary Storage Hardware
Storage Connectivity (Fiber Channel,
SAS, SATA, iSCSI)
Storage model and OS/firmware
revision
Storage cache
Number of storage controllers
Number of storage ports
Maximum bandwidth of storage
connectivity to host
Switch type/model/firmware revision
HBA model and firmware
Number of HBA‟s/host
Host server type
600
1
600
1
1
1
1 database LUN , 1 log LUN and
1 Backup LUN.
0.45
300
10
400
120 GB
40 %
ISCSI
StorTrends 3200i
iTX 2.7
128 M (Adaptable/Dynamic)
1
2
2 * 1 Gbps Ethernet
NetGear JGS516
Microsoft iSCSI Software Initiator 2.0
build 3497
BroadCom BCM57095 NetXtreme II
GigE (NDIS VBD CLIENT)
2
Dell PowerEdge blade D905
Quad-Core AMD Opteron Processor
14
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