Cisco Cisco Unified Contact Center Enterprise 9.0(1) Technical References
Cisco Unified ICM/Contact Center Enterprise & Hosted Editions, Release 9.0(x)
Hardware and System Software Specification
© 2008
– 2014 Cisco Systems, Inc.
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4.1.4.1 Supported Configurations
The following list provides information on 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 CCE components. See
Unified CCE components. See
U
Appendix B – RAID Configuration Requirements
U
for details.
Mirroring is typically used for boot drives on all servers to prevent loss of data and downtime in the
event of a disk failure.
event of a disk failure.
RAID 5 (Block-level striping with distributed parity)–This is the minimum RAID level required for
medium to large Unified ICM/CCE Rogger, Logger and AW-HDS(-DDS) database components
(virtual machine guests) on Cisco Unified Computing System (UCS) hardware; RAID 5 is supported
only on UCS.
Caution: Some disk I/O performance degradation is likely when one disk in a RAID 5 array fails.
medium to large Unified ICM/CCE Rogger, Logger and AW-HDS(-DDS) database components
(virtual machine guests) on Cisco Unified Computing System (UCS) hardware; RAID 5 is supported
only on UCS.
Caution: Some disk I/O performance degradation is likely when one disk in a RAID 5 array fails.
Replace failed disks at the earliest appropriate opportunity to avoid system impairment or
loss of data. A hot-standby may be allocated for a potential disk failure so that a rebuild can
be initiated as soon as practical. A disk rebuild will degrade disk I/O performance during
the actual rebuild (degradation level is dependent on the configured priority of a disk
rebuild); choose your rebuild time window accordingly (for example, not during busy
hours).
loss of data. A hot-standby may be allocated for a potential disk failure so that a rebuild can
be initiated as soon as practical. A disk rebuild will degrade disk I/O performance during
the actual rebuild (degradation level is dependent on the configured priority of a disk
rebuild); choose your rebuild time window accordingly (for example, not during busy
hours).
RAID 10 (A Stripe of Mirrors) – This is an additional RAID level option for medium to large Unified
ICM/CCE Rogger, Logger and AW-HDS(-DDS) database components (virtual machine guests) on
UCS hardware. It is the required RAID level for the same database components, as well as CCMP, on
direct-attached storage (that is, local disk) on MCS hardware. RAID 10 offers the highest level of disk
I/O performance and redundancy.
ICM/CCE Rogger, Logger and AW-HDS(-DDS) database components (virtual machine guests) on
UCS hardware. It is the required RAID level for the same database components, as well as CCMP, on
direct-attached storage (that is, local disk) on MCS hardware. RAID 10 offers the highest level of disk
I/O performance and redundancy.
4.1.4.2
4B
Unsupported Configurations
The following storage configurations are not supported:
Fibre Channel Arbitrated Loop (FC-AL) fabric topology
Software-based RAID provided by the operating system or other software
Proprietary RAID solutions
RAID 0 (Striped Disk Array without Fault Tolerance)
RAID 0+1 (A Mirror of Stripes)
Caution: RAID 0 is not supported due to the lack of fault tolerance. If one drive fails, all data in the array is
lost. RAID 0+1 is not supported due to increased risks of data loss or downtime in the event of a
failure.
failure.
Network Attached Storage
Network Attached Storage (NAS) solutions pose unacceptable risk due to the variability of the
interface between the server and the NAS device; specifically, latency and bandwidth of the network
link can introduce performance delays that put the solution at risk. Because of this variability, Cisco
cannot support NAS for Unified ICM or Unified CCE deployments.
interface between the server and the NAS device; specifically, latency and bandwidth of the network
link can introduce performance delays that put the solution at risk. Because of this variability, Cisco
cannot support NAS for Unified ICM or Unified CCE deployments.
4.1.5 Alternative Storage Option
Unified ICM and Unified CCE server components are qualified and tuned for optimal operation on a dedicated
storage solution – direct attached (internal/external) SAS. However, recognizing that some deployments have
storage solution – direct attached (internal/external) SAS. However, recognizing that some deployments have