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Cisco Unified ICM/Unified CC Enterprise & Hosted Editions, Release 7.2(x) Rev. 1.30
Hardware and System Software Specification
3BServer Hardware Configuration Guidelines
©2010 Cisco Systems, Inc. 7
unless otherwise specified. Components where Serial or Parallel ATA drive use is acceptable are explicitly identified in the
applicable node’s hardware specifications.
Required controllers:
• SCSI/SAS
o Ultra160/3 (minimum)
o Ultra320 (recommended)
o
SAS 3.0Gb/s (highly recommended)
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• ATA
o Serial (recommended)
o Parallel
Disk Speed:
• SCSI/SAS
o 3.5” Form Factor
15,000 RPM for Cisco Unified ICM and Unified CC Loggers, Historical Data Servers and other database
servers
10,000 RPM (minimum) for all other nodes
o 2.5” Form Factor
15,000 RPM preferred for database servers (if available)
10,000 RPM (standard) for all other nodes
• ATA
o
7,200 RPM
Configuration guidelines:
• A dedicated on-board or add-in RAID controller must be used with a minimum of 128 MB of battery backed
cache.
• Increasing the number of physical drives increases the overall fault tolerance of the disk array.
• Use multi-channel controllers connected to discrete drive bays or backplanes.
Note:
Multiple controller channels can be of significant advantage when there are multiple drive bays and backplane
connections. Each channel of the controller can connect to a separate backplane connection, and arrays split
between the channels and backplanes can take advantage of the increased throughput as well as increased
resiliency.
• Two channels per external storage enclosure.
• Multiple external storage enclosures are desirable (when needed) for increased performance and fault tolerance.
• External storage enclosures with dedicated RAID controllers are supported with MCS server systems.
Supported configurations:
• Fibre Channel is supported only in a point-to-point topology deployment.
• Dedicated on-board or add-in RAID controllers are required to use any of the RAID levels supported.
• RAID 1 (Mirroring and Duplexing) – This is the minimum RAID level for all critical Unified ICM and Unified
Contact Center components. See
Appendix B – RAID Configuration Requirements for details. Mirroring is
typically used for boot drives on all servers to prevent loss of data and down time in the event of a disk failure.
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Serial Attached SCSI. This is a new SCSI interface and is applicable to all SCSI requirements found in this document.