Kofax Communication Server 9.1.1 - Manual (Page 29)

Environment Guide Version 3.00.04
© Copyright Kofax, Inc. All information is subject to change without notice. 29
Diskperf –Y <Enter>
After the measurement has been finished, consider especially following counters:
1. a.) Number of processors (n)
b.) Processor(s) total utilization in % (u)
along with information on CPU model and frequency (f) (e.g., Pentium IV 1500MHz)
c.) Processor(s) bandwidth in MHz (if already running in the VM)
Evaluation: Calculate estimated CPU bandwidth in MHz for the ESX server based on processor
utilization u in % on the physical system:
CPUMHz = (n * f * u)/100
In the case of real-time applications this is the minimum CPU bandwidth that must be granted for the
particular VM
Example: Total processor utilization u=50% on dual-PIV 1500MHz processor (f=1500) corresponds
with
CPUMHz = (2 * 1500 * 50)/100 = 1500MHz
2. Memory Committed Bytes
Evaluation: Determines the memory (RAM) demand.
In the case of real-time applications this is the minimum amount of RAM memory that must be granted
for the particular VM
3. Physical disk Transfers/Sec (IO per second = IOPS)
Physical disk Bytes/Sec
Network Bytes Total/Sec
Evaluation: Disk and network requirements must taken into account by the system administrator during
the planning phase of the particular ESX server
After the performance data of all P2V (physical to virtual) candidates have been collected, administrators
will make a plan how to combine different applications and their workloads on the particular ESX server(s).
However, availability of the planned resources must be checked during the server operation, refer to the
chapter KCS Platform Virtualized Operation.
5.2.5 Resource Estimation and Key Performance Indicators
TCOSS Server
This chapter provides resource requirements of the ESX Server resources (CPU, RAM, Disk and Network)
for a typical TCOSS Tandem Fax Server fully utilizing particular number of fax channels (e.g. 20, 40, 60)
using the following scenario:
1. TC/Link-FI (running in the separate VM) is sending 2 page image documents (ca. 100kByte TCI code)
2. Received documents are being sent via the half number of available fax channels and received via the
same number of channels (2 LS1V2 servers connected through loop PRI cable)
(Standard TCOSS UIF configuration with backreception activated, TCOSS Tandem Server configured
with 2 LS1V2 servers with 30 fax channels each, both LS1V2 servers connected through loop PRI
cable)