Purpose and Scope
The purpose of this policy is to define requirements for proper controls to protect the
availability of Helpwise’s information systems.
This policy applies to all users of information systems within Helpwise. This typically includes
employees and contractors, as well as any external parties that come into contact with systems
and information controlled by Helpwise (hereinafter referred to as “users”). This policy must be
made readily available to all users.
Background
The intent of this policy is to minimize the amount of unexpected or unplanned downtime (also
known as outages) of information systems under Helpwise’s control. This policy prescribes
specific measures for Helpwise that will increase system redundancy, introduce failover
mechanisms, and implement monitoring such that outages are prevented as much as possible. Where
they cannot be prevented, outages will be quickly detected and remediated.
Within this policy, an availability is defined as a characteristic of information or information
systems in which such information or systems can be accessed by authorized entities whenever
needed.
Policy
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Information systems must be consistently available to conduct and support business
operations.
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Information systems must have a defined availability classification, with appropriate
controls enabled and incorporated into development and production processes based on this
classification.
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System and network failures must be reported promptly to Helpwise’s lead for Information
Technology (IT) or designated IT operations manager.
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Users must be notified of scheduled outages (e.g., system maintenance) that require periods
of downtime. This notification must specify the date and time of the system maintenance,
expected duration, and anticipated system or service resumption time.
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Prior to production use, each new or significantly modified application must have a
completed risk assessment that includes availability risks. Risk assessments must be
completed in accordance with the Risk Assessment Policy.
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Capacity management and load balancing techniques must be used, as deemed necessary, to help
minimize the risk and impact of system failures.
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Information systems must have an appropriate data backup plan that ensures:
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All sensitive data can be restored within a reasonable time period.
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Full backups of critical resources are performed on at least a weekly basis.
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Incremental backups for critical resources are performed on at least a daily basis.
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Backups and associated media are maintained for a minimum of thirty (30) days and
retained
for at least one (1) year, or in accordance with legal and regulatory requirements.
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Backups are stored off-site with multiple points of redundancy and protected using
encryption and key management.
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Tests of backup data must be conducted twice per year.
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Information systems must have an appropriate redundancy and failover plan that meets the
following criteria:
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Network infrastructure that supports critical resources must have system-level
redundancy (including but not limited to a secondary power supply, backup
disk-array, and secondary computing system). Critical core components (including but
not limited to routers, switches, and other devices linked to Service Level
Agreements (SLAs)) must have an actively maintained spare. SLAs must require parts
replacement within twenty-four (24) hours.
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Servers that support critical resources must have redundant power supplies and
network interface cards. All servers must have an actively maintained spare. SLAs
must require parts replacement within twenty-four (24) hours.
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Servers classified as high availability must use disk mirroring.
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Information systems must have an appropriate business continuity plan that meets the
following criteria:
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Recovery time and data loss limits are defined in Table 1.
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Recovery time requirements and data loss limits must be adhered to with specific
documentation in the plan.
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Company and/or external critical resources, personnel, and necessary corrective
actions must be specifically identified.
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Specific responsibilities and tasks for responding to emergencies and resuming
business operations must be included in the plan.
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All applicable legal and regulatory requirements must be satisfied.
Availability Classification
|
Availability Requirements
|
Scheduled Outage
|
Recovery Time Requirements
|
Data Loss or Impact Loss
|
High
|
High to Continuous
|
30 minutes
|
1 hour
|
Minimal
|
Medium
|
Standard Availability
|
2 hours
|
4 hours
|
Some data loss is tolerated if it results in quicker restoration
|
Low
|
Limited Availability
|
4 hours
|
Next business day
|
Some data loss is tolerated if it results in quicker restoration
|
Last updated: 2nd November 2021