Kofax Communication Server 9.2.0 User Manual
Page 30
Environment Guide
Version 9.02.00
30
© Copyright Kofax, Inc. All information is subject to change without notice.
3. All received documents are fetched and printed by the IPPrinter (running in the separate VM) to the
Windows printer server
Following resource estimation and key performance indicators table consists of three parts:
1. Required granted resources are those that must be permanently allocated on the ESX Server for the
TCOSS VM. The ESX Server itself guarantees that these resources are available
2. Resource capacity to be planned must be taken into account during the virtualization planning phase by
the system administrators. Note that it is planning stuff only and availability of these resources cannot
be explicitly checked, only indirectly by observing key performance indicators.
3. Key performance indicators are values that must be fulfilled and measured during the operation in order
to check whether planned resources (see point 2. above) are really available. Refer to the chapter
Resources Estimation and Key Performance Indicators for TCOSS Tandem Server
Load channels [x] / throughput in fax pages
/ minute
Primary / secondary master metrics
20
40 fax pages / min
40
80 fax pages / min
60
120 fax pages / min
P
S
P
S
P
S
Required granted resources on the ESX server:
CPU [MHz]
1300
1300
1400
1400
1500
1500
RAM [MByte]
(1)
512
512
512
512
512
512
Resource capacity to be planned on the ESX server:
Average TCOSS Disk kBytes/s
50
50
100
100
150
150
Average TCOSS Disk IOPS/s
12
12
24
24
36
36
Average Network kBytes/s
(2)
150
50
250
100
350
250
Network bandwidth [Mbit/s]
(2)
10
10
10
10
10
10
Key performance indicators that must be measured and fulfilled for the proper operation:
Average RTT
ls1
[ms]
<100
<100
<100
<100
<100
<100
Peak RTT
ls1
[ms]
<1000
<1000
<1000
<1000
<1000
<1000
Average RTT
prim-sec
[ms]
<10
<10
<10
<10
<10
<10
Peak RTT
prim-sec
[ms]
<500
<500
<500
<500
<500
<500
Average RTT
storage-media
[ms]
<10
<10
<10
<10
<10
<10
Peak RTT
storage-media
[ms]
<500
<500
<500
<500
<500
<500
Average Write Disk Latency [ms]
(3)
<20
<20
<20
<20
<20
<20
Peak Write Disk latency [ms]
(3)
<2000
<2000
<2000
<2000
<2000
<2000
(1) Add 128 MByte RAM for each additional TCOSS storage or media server instance
(2) Average Network kBytes/s is the real bandwidth consumption, the Network bandwidth is the
recommended capacity to be planned for the TCOSS server