Storage System Performance Specifications
The following are graphs which illustrate IOPS under various conditions for Unified Communications applications. This area is under construction. Check back frequently for updates.
Unified Communications Manager
This section provides the IOPS data for a Cisco Unified Communications Manager system under load.
|Note:||Sending CDR/CMR to the billing server does not incur any IOPS spikes, but enabling CDR Analysis and Reporting (CAR) continuous loading results in around 300 IOPS average on the system.|
As a reference, the following steady state IOPS were observed for the loads (expressed in Busy Hour Call Attempts) indicated:
- 10K BHCA produces ~ 35 IOPS
- 25K BHCA produces ~ 50 IOPS
- 50K BHCA produces ~ 100 IOPS
- 100K BHCA produces ~ 150 IOPS
|Note:||The Unified Communications Manager data is based on ~93-98% sequential writes.|
- Software upgrades generate 800 to 1200 IOPS in addition to steady state IOPS.
- CAR-scheduled uploads is 250 IOPS.
- Trace collection is 100 IOPS.
- Nightly backup is 50 IOPS.
Cisco Unity Connection
Summary of IOPS for Unity Connection
Contact Center Enterprise
The SAN must be able to handle the following Unified CCE application disk I/O characteristics.
|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.|
|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|
Contact Center Express/IPIVR IOPS
The following table lists the IOPS numbers for Unified Contact Center Express/IPIVR.
|IOPS Avg per VM||150|
|IOPS Max spike per VM||1500|
|Back to: Unified Communications in a Virtualized Environment|