Storage System Performance Specifications
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This page illustrates IOPS under various conditions for Unified Communications applications. This area is under construction. Check back frequently for updates.
Contents |
Unified Communications Manager
This section provides the IOPS data for a Cisco Unified Communications Manager system under load. These values are per active VM OVA. Which VM OVAs are active, and how many are active simultaneously, depends on how the CUCM cluster nodes are setup with respect to service activation, redundancy groups, etc. (see www.cisco.com/go/ucsrnd for details).
CUCM storage access is on average 93-98% sequential writes with an IO block size of 4 kilobytes.
- Active call processing: As a reference, the following steady state IOPS were observed at various loads (expressed in Busy Hour Call Attempts):
- 10K BHCA produces ~ 35 IOPS
- 25K BHCA produces ~ 50 IOPS
- 50K BHCA produces ~ 100 IOPS
- 100K BHCA produces ~ 150 IOPS
- Software upgrades during business hours generate 800 to 1200 IOPS in addition to steady state IOPS.
- CDR/CMR via CDR Analysis and Reporting (CAR)
- CUCM sending CDR/CMR to the external billing server does not incur any additional IOPS.
- Enabling CAR continuous loading results in around 300 IOPS average on the system.
- Scheduled uploads are around 250 IOPS for Publisher's VM only.
- Trace collection is 100 IOPS (occurs on all VMs for which tracing is enabled).
- Nightly backup (usually Publisher's VM only) is 50 IOPS.
Cisco Emergency Responder
100 IOPS is a good typical value to plan around. Otherwise use values for Cisco Unified Communications Manager above (they will be conservatively high).
Cisco Intercompany Media Engine
Use values for Cisco Unified Communications Manager above (they will be conservatively high).
Cisco Unity Connection
Summary of IOPS for Unity Connection
| IOPS Type | 1vCPU | 2vCPU | 4vCPU | 7vCPU |
|---|---|---|---|---|
| Avg Total | 78.66 | 129.01 | 217.89 | 201.73 |
| Peak Total | 760.99 | 714.06 | 867.88 | 773.70 |
| Avg Read | 5.90 | 19.60 | 45.67 | 9.53 |
| Peak Read | 601.84 | 469.46 | 693.21 | 526.22 |
| Avg Write | 72.77 | 109.40 | 172.22 | 192.20 |
| Peak Write | 247.14 | 293.51 | 371.97 | 413.50 |
Unified Presence
The CUP 1000 user OVA generates about 60 IOPS during steady-state. Expect similar peaks as CUCM during backups and upgrades.
Cisco Unified Attendant Consoles
This section provides the IOPS data for Cisco Unified Attendant Consoles (using Enterprise Attendant Console to produce heaviest load). Load test and average operations are represented. These tests use the published OVA template for Cisco Unified Attendant Consoles.
| LOAD TESTING | ||||||||
| | IOPS (Read) | | IOPS (Write) | | ||||
| | Min | Max | Average | | Min | Max | Average | Operating Conditions |
| Cisco Unified Attendant Console Server | 0 | 1013.605 | 0.442 | | 0 | 1112.87 | 12.121 | 5,000 calls per hour, 25 concurrent operators, continuous LDAP sync, full logging |
| Upgrade | 0 | 320.006 | 3.691 | | 0 | 105.001 | 10.341 | Major upgrade |
| AVERAGE OPERATIONS | ||||||||
| | IOPS (Read) | | IOPS (Write) | | ||||
| | Min | Max | Average | | Min | Max | Average | Operating Conditions |
| Cisco Unified Attendant Console Server | 0 | 11.6 | 0.092 | | 0 | 561.05 | 10.82 | Synchronized directory, cached BLF, minimum online changes |
| Upgrade | 0 | 107.001 | 5.751 | | 0 | 50 | 3.57 | Minor upgrade |
Cisco Customer Collaboration/Contact Center
Cisco Contact Center Enterprise
The SAN must be able to handle the following Unified CCE application disk I/O characteristics.
The data below is based on CCE 8.5(3) running on Windows Server 2008 R2 Enterprise
| Unified CCE Component | IOPS | Disk Read KBytes / sec | Disk Write KBytes / sec | Operating Conditions | ||||||
| Peak | Avg. | 95th Pct | Peak | Avg. | 95th Pct | Peak | Avg. | 95th Pct. | ||
| Router | 27 | 14 | 19 | 619 | 11 | 12 | 436 | 246 | 313 | 12,000 agent;100 CPS, ECC: 5 scalars @ 40 bytes each; 200 Reporting users at max query load |
| Logger | 3662 | 917 | 1793 | 12821 | 735 | 11571 | 38043 | 2777 | 11832 | |
| HDS | 1017 | 321 | 693 | 2748 | 250 | 2368 | 19351 | 1441 | 3879 | |
| Router | 118 | 11 | 13 | 1681 | 14 | 5 | 971 | 66 | 172 | 8,000 agents;60 CPS; ECC:5 scalars @ 40 bytes each; 200 Reporting users at max query load |
| Logger | 1614 | 502 | 1065 | 6137 | 341 | 4993 | 30379 | 558 | 5911 | |
| HDS | 1395 | 165 | 541 | 1995 | 186 | 1776 | 12525 | 1299 | 2965 | |
The data below is based on CCE 8.0(2) running on Windows Server 2003 R2
| Unified CCE Component | IOPS | Disk Read KBytes / sec | Disk Write KBytes / sec | Operating Conditions | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Peak | Avg. | 95th Pct. | Peak | Avg. | 95th Pct. | Peak | Avg. | 95th Pct.
| ||
| Router | 20 | 8 | 10 | 520 | 30 | 180 | 400 | 60 | 150 | 8,000 agents; 60 cps; ECC: 5 scalars @ 35 bytes each; No reporting. |
| Logger | 1,000 | 600 | 700 | 4,000 | 600 | 2,500 | 12,000 | 3,000 | 7,000 | |
| HDS | 1,600 | 1,000 | 1,100 | 600 | 70 | 400 | 6,000 | 2,000 | 3,800 | |
| Agent PG | 125 | 40 | 70 | 300 | 5 | 20 | 2,000 | 1,200 | 1,500 | 2,000 agents, 15 cps
|
| HDS | 3,900 | 2,500 | 3,800 | 75,000 | 30,000 | 50,000 | 9,500 | 2,200 | 5,800 | 8,000 agents; 60 cps; 200 reporting users at max query load; ECC: 5 scalars @ 35 bytes each. |
| ROGGER | 610 | 360 | 425 | 2,700 | 400 | 1,600 | 7,500 | 2,150 | 4,300 | 4,000 agents; 30 cps; ECC: 5 scalars @ 35 bytes each |
Cisco Contact Center Express/IPIVR IOPS
The following table lists the IOPS numbers for Unified Contact Center Express/IPIVR.
| IOPS Type | 2vCPU |
|---|---|
| IOPS Avg per VM | 150 |
| IOPS Max spike per VM | 1500 |
Workforce Optimization (WFO) IOPS
The following table lists the IOPS numbers for Cisco Unified Workforce Optimization 8.5(2) onward.
| Workforce Optimization Component | IOPS (Read) | IOPS (Write) | Operating Conditions |
| QM 8.5.2 Base Server | 4 | 2 | Idle |
| 4 | 12 | Recording 300 concurrent calls | |
| 11 | 38 | During recording upload | |
| QM 8.5.2 Recording Server | 1 | 2 | Idle |
| 74 | 187 | Recording 300 concurrent calls | |
| 102 | 71 | During recording upload |
Cisco MediaSense
The following table lists the IOPS numbers for Cisco MediaSense partitions.
| Media Partitions | IOPS Specifications |
|---|---|
|
Average IOPS for non-media partitions | 1700 ops/sec |
| Average IOPS for media partitions | 50 ops/sec |
| Average bandwidth for non-media partitions | 7300 kbytes/sec |
| Average bandwidth for media partitions | 1000 kbytes/sec |
Cisco Finesse
The following table lists the IOPS numbers for Cisco Finesse.
| IOPS Type | IOPS Specification |
| Max IOPS | 160 |
| 95th percentile | 150 |
Cisco Unfied Email Interaction Manager and Web Interaction Manager
| EIM-WIM component | IOPS | Disk Read KBytes / sec | Disk Write KBytes / sec | ||||||
| Peak | 95th Pct. | Avg. | Peak | 95th Pct. | Avg. | Peak | 95th Pct. | Avg. | |
| Application Server | 11.7 | 3.21 | 1.55 | 51 | 1 | 0.726 | 103 | 19 | 8.32 |
| File Server | 43.65 | 25.23 | 14.36 | 189 | 2 | 2 | 1769 | 1025.9 | 446 |
| Database Server | 736.9 | 552 | 263.31 | 35450 | 23184 | 3903 | 5737 | 2872 | 1625 |
| Messaging Server | 9.15 | 2.71 | 1.47 | 57 | 1 | 0.7 | 88 | 15.1 | 8 |
| Services Server | 11.15 | 3.155 | 1.53 | 55 | 1 | 0.73 | 1.89 | 17 | 9 |
| Web Server | 11.2 | 3.36 | 1.43 | 55 | 1 | 0.8 | 173 | 21 | 10.24 |
| Cisco Media Blender | 12.25 | 7.45 | 5.51 | 47 | 0 | 0.516 | 384 | 289 | 177.47 |
Cisco Unified Intelligence Center
- CPU usage (average) should not exceed 60% for the ESXi Server and for each of the individual processors, and for each VM.
- Memory usage (average) should not exceed 80% for the ESXi Server and for each of the VMs.
- VM snapshots are not supported in production since they have significant impact on system performance.
- The SAN must be able to handle the following Cisco Unified Intelligence Center application disk I/O characteristics.
- Enable hyper threading on all ESXi servers.
The following table lists the IOPS numbers for Cisco Unified Intelligence Center.
| Details | Write (Kilobytes/Sec) | Read (Kilobytes/Sec) | IOPS |
| Maximum | 7758.00 | 466.00 | 781.40 |
| 95 Percentile | 6446.30 | 433.10 | 628.34 |
| Average | 5727.44 | 74.32 | 460.17 |
| Minimum | 4897.00 | 0.00 | 288.75 |
Cisco Customer Voice Portal
The following table lists the IOPS numbers for Cisco Unified Customer Voice Portal.
IOPS Summary: (Unit in Number, Data are Blade-based)
| CVP Server component | Average | MAX | 95th Percentile |
|---|---|---|---|
| Call Server/VXML Servers | 380 | 1536 | 797 |
| Reporting Server | 692 | 3403 | 2024 |
| Operation Server | NA (Insignificant) | NA | NA |
| Back to: Unified Communications in a Virtualized Environment |
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