Disaster Recovery Procedure Overview

Table 1 provides an overview comparison of the procedures you should perform and the order in which to perform them, according to the disaster backup strategy you are using. Following sections describe each disaster backup strategy in more detail and list any conditions assumed.

Comparison of Recovery Procedures to Perform

Recovery Procedure

Note: This table is for comparison; for detailed procedures by strategy, see Table 1 through Table 1.

Active Shadowa

Inactive Shadowa

No shadow b

Restoring Operations

to the Main LSMS

After Running on

Active Shadowb

Restoring Operations

to the Main LSMS

After Running on

Inactive Shadowb

Repair or replace the LSMS

   

1

1

1

Recovery acceptance test

1

1

2

2

2

Contact each NPAC from which the LSMS needs data to request download files

 

2

3

 

3

Contact each NPAC from which the LSMS needs data to provide it with the IP address with which to establish association to the mate LSMS

 

3

 

3c

4

FTP data from NPAC and import it into the LSMS

 

4

4c

4c

5c

Start LSMS GUI

 

5

5

5

6

Add locally provisioned data that had been entered since last backup (or not already entered on mate LSMS)

2

6

6

*

*

Reconnect network elements

3

7

7

6

7

If the disaster outage has lasted 7 days or less, perform a time range audit and reconcile to network elements and a full-range audit of DGTT, OGTT, and NPA-Splits (otherwise perform a bulk download to network elements and then reassociate network elements)

4

8

8c

7c

8c

If query servers are installed, stop all directly connected query servers

5

9

 

8

9

If query servers are installed, configure each directly connected query server to use the IP address of the mate LSMS for its master host

6

10

 

9

10

If query servers are installed, reload each directly connected query server from the mate LSMS

7

11

9

10

11

Run on the shadow LSMS until main LSMS is restored

8

12

     

Return operations to restored main LSMS

9d

13d

     

aPerform these procedures on the shadow LSMS.

bPerform these procedures on the main LSMS.

cPerform only as required.

dAs described in Table 1 (and summarized in the rightmost columns of this table).

*Backups should always be scheduled immediately before switching from the shadow LSMS to the main LSMS; no additional data should have been locally provisioned.