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Table 2 Praedico System Outages and Causes, Veterans Health Administration, May 2018 – February 2021

From: Public health surveillance in the U.S. Department of Veterans Affairs: evaluation of the Praedico surveillance system

Outage

Length

Reason

Type

End User Affected

7/28/18

2 days

OITa hardware upgrade

Planned

No, non-business hours

8/18/18

2 days

OIT network update

Planned

No, non-business hours

9/11/18

2 days

Hardware repairs, storage array

Planned

Yes, during business hours

10/19/18

4 h

OIT network outage (for upgrade)

Planned

No, non-business hours

1/11/19

3 h

Hardware repairs, storage array

Planned

Yes, during business hours

3/13/19

4 h

OIT local network outage

Unplanned

Yes, during business hours

4/13/19

2 days

Host migration to OIT management

Planned

No, non-business hours

6/10/19

½ day

VA campus/city-wide power outage

Unplanned

No, non-business hours

6/27/19

4 h

Praedico moved to new OIT servers

Planned

Yes, during business hours

9/14/19

2.5 h

OIT datacenter/network maintenance

Planned

No, non-business hours

  1. aOIT VA Office of Information & Technology