Storage
| IT Resource Sub Tower | Definitions | Examples | Unit Cost Unit of Measure (standard) (see definition ) | FTE Efficiency Unit of Measure (see definition ) |
|---|---|---|---|---|
| Online | Online Storage resources attached to Servers. It excludes storage that is bundled (internal) in the server (it is included in the server cost). This includes Disaster Recovery storage. | SAN, NAS, iSCSI, CAS | Installed TB | Servers installed TB per FTE |
| Offline | Offline Storage resources attached to Servers. This includes Disaster Recovery storage. | Tape Backup Backup/Archival S/W | Installed TB | Servers Offline installed TB per FTE |
| Mainframe Online | Online Storage resources attached to Mainframes. This includes Disaster Recovery storage. |
SAN, NAS, iSCSI, CAS |
Installed TB | Mainframe installed TB per FTE |
| Mainframe Offline | Offline Storage resources attached to Mainframes. This includes Disaster Recovery storage. |
Tape Backup Backup/Archival S/W |
Installed TB | Mainframe Offline installed TB per FTE |
Storage Cost Pool Composition
| IT Resource Sub Tower | Internal/External Labor | Hardware | Software | Outside Services | Facilities & Power | Telecom |
|---|---|---|---|---|---|---|
|
Online Mainframe Online |
Storage analysts/engineers providing technical operations & support, Planning & Process Mgmt, Admin (including mgmt.) | Storage disk & controllers, Storage servers, Fiber switches | Storage management, virtualization, Replication, Reporting, Security, Monitoring. Drivers & network software for NAS. | Managed storage services. | N/A (at the Tower Level, included in the technology services TCO) | N/A |
|
Offline Mainframe Offline |
Systems analysts/engineers providing technical operations & support (online backup & tape mgmt), Planning & Process Mgmt, Admin (including mgmt.) | Specialized backup/ archive systems, Tape subsystems, Offline supplies (e.g. tapes) | Backup/restore/ archive maintenance, Reporting, Security, Monitoring, Media Handling/migration | Managed storage services. Managed off-site archive services. | N/A (at the Tower Level, included in the technology services TCO) | N/A |
Storage Units of Measure
| IT Resource Sub Tower | Unit of Measure (standard) | Guidelines |
|---|---|---|
|
Online Mainframe Online |
Total installed (raw) disk storage in TB |
The maximum raw physical capacity of all disk drives, technologies (i.e. SAN, NAS, iSCSI, CAS, DASD etc.) and locations (including Disaster Recovery locations). For example, for storage array containing 64 disk drives rated by the manufacturer as 800 Gbyte drives, the installed disk storage is 51.2 Tbytes. For virtual storage arrays such as RAMAC or ICEBERG, enter the vendor’s maximum claimed capacity of the device after compression, as found in purchasing agreements or product brochures. Production and Failover – FC SAN, High End NAS, SSD Include disaster recovery volumes |
|
Offline Mainframe Offline |
Total installed tape storage in TB |
Tape back up Include disaster recovery volumes |