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Sample – Distributed Storage, Backup & Long-term Retention guidelines

Posted in Application (380),Data Center - SOC - NOC,Web Services (250) by Guest on the October 16th, 2018

Distributed Storage, Backup & Long-term Retention

The IT Storage provides tiered storage service levels that align with storage provider capabilities and are based on your business requirements. A detailed description of the tiers can be found below. In addition to tiered disk rates, a monthly data Backup charge, and a long-term Backup data retention charge have been implemented and described below.

  • The characteristics of Tier 1 SAN/NAS Disk, Tier 2 SAN/NAS Disk and Tier 3 SAN/NAS DiskĀ are described below.
  • The cost for backing up disk storage to tape is in addition to the storage costs. The frequency of the backups varies by tier of disk. Backup of internal disk is a consumption-based charge model to more-accurately reflect the costs of the distributed tape backup environment.
  • A long-term data retention cost is incurred for data retained longer than 56 days.

The following table is a summary of the tiered levels of disk; additional details for each tier follow the table.

Disk Resource Tier 1 Tier 2 Tier 3
Connectivity to Storage Area Network (SAN) Dual path, Fiber Channel. Single path, Fiber Channel Single path, iSCSI, low-end Fiber.
Disk drives High performance, high availability RAID. Moderate performance, high availability RAID. Serial ATA (SATA) interface, low-performance RAID.
Scalability High Moderate Low
Non-disruptive maintenance Yes Usually, but some outages required. Hardware/software maintenance requires an outage.
Pro-active hardware monitoring Yes Yes No
Root cause analysis Yes For significant problems. None
Support hours 7×24 7×24 5×8 (7:00-16:30, Mon-Fri)
Backup schedule Full weekly, daily incrementals, plus monthly DR. Full weekly, daily incrementals, plus monthly DR. No routine backup; monthly DR only. Additional backups at users request.

 

Tier 1 SAN/NAS Disk Characteristics:

  • Dual path connectivity to SAN or NAS (Network) attached high performance fiber disk array.
  • High availability RAID configuration, to minimize disruption from a disk hardware failure.
  • Highly scalability.
  • Non-disruptive hardware and micro-code upgrades.
  • Pro-active hardware monitoring, root cause analysis for all problems and downtime problem escalation within 30 minutes.
  • 7×24 support for hardware, availability and performance.
  • Standard backup schedule (full weekly backups with daily incrementals. Additional backups may be requested). The IT Storage maintains monthly backups of the data for disaster recovery purposes; other special backups may also be taken when maintenance is applied to the Tier 1 SAN disk environment.

 

Tier 2 SAN/NAS Disk Characteristics:

Single path connectivity to SAN or NAS (Network) attached moderate performance fiber disk array.

  • High availability RAID configuration to minimize disruption from a disk hardware failure.
  • Moderate scalability.
  • Hardware and micro-code upgrades may be disruptive.
  • Pro-active hardware monitoring, root cause analysis for problems that significantly impact the environment; downtime problem escalation after 4 hours.
  • 7×24 support for hardware and availability; no performance analysis is included in the base rate.
  • Support for performance problems and other support services are available on a time and material basis at the standard IT Storage workday rate.
  • Standard backup schedule (full weekly backups with daily incrementals; additional backups may be requested). The IT Storage maintains monthly backups of the data for disaster recovery purposes; other special backups may also be taken when maintenance is applied to the Tier 2 SAN disk environment.

 

Tier 3 SAN/NAS Disk Characteristics:

Single path connectivity to SAN, using iSCSI, NFS or low-end fiber attached to low performance SATA disk array.

  • High availability RAID configuration, to minimize disruption from a disk hardware failure.
  • Low to moderate scalability.
  • Disruptive hardware and micro-code upgrades.
  • No pro-active hardware monitoring or root cause analysis performed. Down-time problem escalation after 24 hours, 7:00 AM-4:30 PM, EDT time, Monday through Friday.
  • Hardware and availability support 7:00 AM- 4:30 PM, EDT time.
  • No performance analysis is included in the base rate.
  • Support for performance problems and other support services are available on a time and material basis at the standard IT Storage workday rate).
  • No routine backup of the data; all backups are individually scheduled (e.g. weekly, monthly, etc) at the user’s request. The IT Storage maintains monthly backups of the data for disaster recovery purposes; other special backups may also be taken when maintenance is applied to the Tier 3 SAN disk environment.

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