Sify's Network Attached Storage is an industry standard storage solution offering simple & faster on-demand storage provisioning / expansion on an end-to-end redundant path to match the assured high-availability.
With provisioning options from SAS/SATA, this solution drives in an assured transfer rate through GigaBit Ethernet connectivity. Scalable and pay-as-you grow flexibility; Sify NAS' automation policy based data migration simplifies management.
Multiple snapshots with versioning for instant recovery, file level access through NFS/CIFS shares mounting to the servers through ethernet connectivity are the other noteworthy highlights.
|Network Attached Storage (NAS) Tiers|
|Category||Service Feature||Enhanced Tier||Standard Tier|
|Storage Specifications||Performance||450 Mbps||250 Mbps|
|Storage Availability Guarantee (SLA)||99.99%||99.99%|
|Access Mechanism to Storage||10 Gbps FCOE / 1 Gbps iSCSI||10 Gbps FCOE / 1 Gbps iSCSI|
|HBA Cards Compatibility||2x 4Gbps FC HBA's / 4x iSCSI Hardware HBA's||2x 4Gbps FC HBA's / 2x iSCSI HBA's|
|File System||CIFS / NFS||CIFS / NFS|
|Snapshots / Versioning||Up to 10 Snapshots||Up to 10 Snapshots|
|Files Per Directory||Up to 16 Million||Up to 16 Million|
|Single Name Space||Yes||Yes|
|File System Audit||As Required||As Required|
Backup on Dedicated Tape Media- LTO4
(At additional fee)
|Deployment scenario's||Near line as well as Long Distance over WAN Link||Near line as well as Long Distance over WAN Link|
|Minimum Storage Capacity Subscription||100 GB||100 GB|
|Additional Storage Capacity Subscription||25 GB||25 GB|
|Data Security||Fabric Zoning||Yes||Yes|
|Fiber Channel SAN Interface||Yes||Yes|
|IP SAN Interface||Yes||Yes|
|Customized Security Deployment||Optional||Optional|
Comparative - NAS v/s SAN
|Identifies data by file name, transfers file data or file meta-data and handles security, user authentication, file locking||Addresses data by disk block number and transfers raw disk blocks.|
|Protocol: TCP IP / NFS / CIFS||Protocol: iSCSI / Fibre Channel|
|File System managed by NAS head unit||File System managed by servers|
|Good for Graphical oriented Apps, File serving based Apps||Good for OLTP App, DB Clusters, ERP App, Messaging, etc..|
Backups and mirrors are done on files, not blocks, for a savings in bandwidth and time.
|Backups and mirrors require a block by block copy, even if blocks are empty.|
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