Contract # GS00T01AHD0002
Proposal to Add Federal Telecommunications Service Long Distance (FTS LD)
18.104.22.168 Network Attached Storage (NAS) on Demand
Network Attached Storage (NAS) on Demand is another optional primary data
storage solution available. NAS on Demand is perfect for read intensive applications
requiring multiple servers to access the same data.
This differs from SAN by utilizing an IP network architecture, rather than a fibre
channel technology. With NAS on Demand, file systems rather than raw storage
volumes are made available over the network and the file server manages the data
NAS on Demand is client oriented, so that I/O commands are made via a standard IP
connection. The file server manages data placement. As a result, NAS on Demand
can provide file sharing among users and among operating systems via Network File
System (NFS) for UNIX and Common Interface File System (CIFS) for NT protocols.
Multiple hosts can see the file systems simultaneously. Refer to Table 22.214.171.124 1 for
Managed Storage services comparisons.
Table 126.96.36.199 1. Managed Storage Services Comparison
SAN on Demand
NAS on Demand
File (NFS, CIFS)
High no sharing
Shared with Controls
Data not shared
NAS on Demand can utilize existing NICs. There is no additional server side
hardware or software required, assuming NICs exist
This service is provided in conjunction with StorageNetworks. NAS on Demand is
not available in all AT&T Internet Data Centers. Other restrictions may apply.
Use or disclosure of data contained on this sheet is subject to the restriction on the title page of this proposal.
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