Avaya Aura Communication Manager Manuale tecnico

1 October 2011, ver 5

Avaya Aura®Communication Manager

Methods For Updating Daylight Saving Time Rules

Localities worldwide routinely adjust their Daylight Saving Time (DST) rules.

Communication Manager can automatically adjust for Daylight Saving Time based on

the built-in DST rules for each locality. The DST rules are defined by the version of

the “tzdata” Linux RPM included in the software. If there is a change in these rules

for a particular locality, Communication Manager may require software updates.

There are three methods for handling new DST rules. The availability and

appropriateness of each method for a given system depends on that system’s release

and locality.

1. Recent Communication Manager releases have DST rules that were current at

the time of release built into the software.

2. Patches – Some older releases do not have the rules built into the software.

In some cases, patches are available to handle the new rules. These patches

may be applied in addition to a patch already on the system, and supersede

the DST rules originally included in the software (if any).

3. Manual procedures - In some cases, Communication Manager updates (i.e.,

patch or new release) may not be available soon enough to accommodate

support of changing DST start and end dates. In these cases, manual

procedures must be followed. The manual procedures may be the only option

for older Communication Manager releases which are beyond End Of

Manufacturer Support (EOMS) and do not have patches available.

Method 1: DST Rules Included in Launched Communication

Manager Releases

Recent releases of Communication Manager have DST rules that were current at the

time of release already built into the software. The following table shows the tzdata

version included in Communication Manager releases:

Communication Manager

Release Software Load tzdata version*

3.1.4 642.1 2007d

3.1.5 642.3 2007d

4.0.1 731.2 2007d

4.0.3 737.4 2007k

4.0.4 739.0 2007k

4.0.5 742.0 2007k

5.0 825.4 2007h

5.1 414.3 2007k

5.1.1 415.1 2008b

5.1.2 416.4 2008f

5.2 947.3 2008i

5.2.1 016.4 2009k

6.0 345.0 2010i

6.0.1 510.1 2010l

2 October 2011, ver 5

* See “Tzdata Versions” section below for more information regarding this

column.

Method 2: DST Patches

The following Communication Manager Daylight Saving Time patches are available:

Communication

Manager Release Software

Load DST Patch tzdata version*

2.0.1 221.1 00.1.221.1-12514.tar.gz 2006g

2.1 411.7 01.0.411.7-12514.tar.gz 2006g

2.1.1 414.1 01.1.414.1-12514.tar.gz 2006g

2.2 111.4 02.0.111.4-12514.tar.gz 2006g

2.2.2 122.0 02.2.122.0-12514.tar.gz 2006g

3.0 340.3 00.0.340.3-12514.tar.gz 2006g

3.0.1 346.0 00.1.346.0-12514.tar.gz 2006g

3.1 628.6 01.0.628.6-12514.tar.gz 2006g

3.1.1 628.7 01.1.628.7-12514.tar.gz 2006g

3.1.2 632.1 01.2.632.1-14809.tar.gz 2007h

3.1.3 640.2 01.3.640.2-12514.tar.gz 2006g

3.1.4 642.1 01.4.642.1-14809.tar.gz 2007h

3.1.5 642.3 01.5.642.3-14809.tar.gz 2007h

4.0 730.5 00.0.730.5-12514.tar.gz 2006g

4.0.1 731.2 00.1.731.2-14809.tar.gz 2007h

5.2.1

†

016.4 02.1.016.4-19268.tar.gz 2011h

6.0.1

†

510.1 00.1.510.1-19269.tar.gz 2011h

* See “Tzdata Versions” section below for more information regarding this column.

†The patches for CM 5.2.1 and CM 6.0.1 are custom patches not available on the

Avaya Support Site. Contact Avaya Global Support Services or your service provider

to obtain these patches.

If the desired patch is not shown in the table above, the change may already be

incorporated into a released version of Communication Manager (see Method 1). If

the DST change is not available in a patch or in a released version, then the

date/time change must be made manually (Method 3).

Special Note for CM 5.2.1 Patch

The patch for CM 5.2.1 can also be used with SIP Enablement Services (SES) 5.2.1.

Refer to SES 5.2.1 Documentation at http://support.avaya.com for patch installation

procedures.

Special Note for CM 6.0.1 Patch

The patch for CM 6.0.1 can also be used with Avaya Aura®Solution for Midsize

Enterprise 6.1 using the instructions below for CM 6.0 and greater.

To download the correct version of the Daylight Saving Time

patch from support.avaya.com:

1. Go to http://support.avaya.com and click sign in then enter your login

information

2. Click Downloads in the left hand navigation list

3. Begin to type Communication Manager in the Product Name field of the pop-up

window and when Avaya Aura®Communication Manager appears as a selection

3 October 2011, ver 5

below, select it. If instead the A-Z List is clicked in the pop-up window and

Avaya Aura®Communication Manger is selected, you will once again need to click

Downloads in the left hand navigation list.

4. Click on Latest TN Circuit Pack, Server, and Media Gateway Firmware and

Software Updates

5. In the Daylight Saving Time Patches for Servers running Communication

Manager table click on the appropriate load of Communication Manager (e.g.,

632.1).

6. Download the appropriate patch for the specific release of Communication

Manager

7. The patches for CM 5.2.1 and CM 6.0.1 are custom patches not available on the

Avaya Support Site. Contact Avaya Global Support Services or your service

provider to obtain these patches.

To obtain patch installation instructions for releases through

CM 5.2.1:

1. Go to http://support.avaya.com and click sign in then enter your login

information

2. Click Downloads in the left hand navigation list

3. Begin to type Communication Manager in the Product Name field of the pop-up

window and when Avaya Aura®Communication Manager appears as a selection

below, select it. If instead the A-Z List is clicked in the pop-up window and

Avaya Aura®Communication Manger is selected, you will once again need to click

Downloads in the left hand navigation list.

4. Click on Latest TN Circuit Pack, Server, and Media Gateway Firmware and

Software Updates

5. Click on Communication Manager 2.0 and Later Software Update

Procedures. These command line procedures can be used for releases through

CM 5.2.1. Refer to release specific documentation for Communication Manager

web page interface instructions.

6. Disregard any text that instructs you to “deactivate all previous updates when

applying a new update”. Daylight Saving Time patches should be applied on top

of currently activated patches and Service Packs.

7. IMPORTANT - After activating the appropriate Daylight Saving Time patch it is

necessary to:

a) re-enter any rules being used on the daylight-savings-rules SAT form

b) re-select the time zone from the System Management Interface (SMI) web

pages (pick a different time zone and click submit, then select the desired

time zone and submit again).

c) reboot the Server.

These are essential additional steps to synchronize all the Linux and

Communication Manager processes.

To obtain patch installation instructions for CM 6.0 and greater:

1. Go to http://support.avaya.com and click Documentation in the left-hand

navigation list.

4 October 2011, ver 5

2. Click View All Documents from the Documentation menu.

3. Select Avaya Aura®Communication Manger from the A-Z List (under “A” for

Avaya).

4. Select 6.0.x from the Release pull-down menu.

5. Click on the document titled Administering Avaya AuraTM Communication

Manager (Doc ID 03-300509) in the Administration and System Programming

section.

6. See Chapter 21: Server Management for instructions on applying the patch.

7. Do not deactivate any existing Communication Manager patches or service packs

running on the system. Daylight Saving Time patches should be applied on top

of currently activated patches and Service Packs.

8. After applying the appropriate Daylight Saving Time patch it is necessary to re-

enter any daylight-savings-rules being used. See Chapter 2: System Basics in

the document referenced above for these procedures.

9. Reselect the desired time zone using the System Platform Date/Time

Configuration page (Set Time Zone button). See Chapter 21: Server

Management in the document referenced above for instructions on setting the

time zone.

10.After re-entering daylight-savings-rules and resetting the time zone reboot the

Communication Manager Virtual Machine using the instructions in Chapter 20:

Managing System Platform virtual machines.

Method 3: Manual Date/Time Changes

If an upgrade cannot be performed, or a DST patch cannot be applied, consult the

Manual DST Procedure below for instructions on making date/time changes to your

system.

Tzdata Versions

Tzdata is a Linux component, or RPM, created and maintained by Red Hat, Inc. This

archive file is used by Communication Manager as part of the operating system, and

defines “time zone data” (i.e., DST rules) worldwide. As new versions of tzdata are

released by Red Hat, they are incorporated into Communication Manager. This file is

included in the upcoming release of Communication Manager, and may be included

in patches for the most recent releases being sold.

To get information about the contents of each version of tzdata, please refer to Red

Hat’s web site. Here are references to various versions of tzdata. If the links below

do not work properly, you may need to copy/paste the URL directly into your

browser.

2011h - http://rhn.redhat.com/errata/RHEA-2011-1128.html

2010l - http://rhn.redhat.com/errata/RHEA-2010-0673.html

2010i - http://rhn.redhat.com/errata/RHEA-2010-0381.html

2009k - https://rhn.redhat.com/errata/RHEA-2009-1214.html

2008i - https://rhn.redhat.com/errata/RHEA-2008-0969.html

5 October 2011, ver 5

2008f - https://rhn.redhat.com/errata/RHEA-2008-0941.html

2008b - https://rhn.redhat.com/errata/RHEA-2008-0506.html

2007k - https://rhn.redhat.com/errata/RHEA-2008-0185.html

2007h - http://rhn.redhat.com/errata/RHEA-2007-0928.html

2007f - http://rhn.redhat.com/errata/RHEA-2007-0689.html

2007d - http://rhn.redhat.com/errata/RHEA-2007-0128.html

2007c - http://rhn.redhat.com/errata/RHEA-2007-0104.html

2006m - http://rhn.redhat.com/errata/RHEA-2006-0745.html

2006g - http://rhn.redhat.com/errata/RHEA-2006-0622.html

2006a - http://rhn.redhat.com/errata/RHEA-2006-0277.html

2005m - http://rhn.redhat.com/errata/RHEA-2005-656.html

Changes to the tzdata file are cumulative. Files are named chronologically, with the

year and a letter designation. Any higher-numbered file is more recent than a lower-

numbered file. Newer files contain the most up-to-date information, including any

current or updated information from older files. For example, 2007h contains all of

the changes in 2007f and all previous versions from 2007. 2007h also includes the

current or updated information from any file created in 2006, 2005, etc.

Following are some examples of how different countries were handled with different

tzdata versions:

United States – The 2005m version has most of the DST changes that went

into effect in March 2007. Most US locations are covered with 2005m or later.

Isolated US changes have been made to tzdata since then. For example,

changes were made in 2007h to handle updates for specific counties in

Indiana.

Canada – The 2006a and 2006g versions have the main DST changes that

went into effect in March 2007.

New Zealand – 2007f contains New Zealand’s DST updates.

Australia – 2007g contains Australia’s DST updates.

Russia – 2011h contains Russia’s DST changes for 2011

Manual Date/Time Change Instructions for

Daylight Saving Time Adjustments

Localities worldwide routinely adjust their Daylight Saving Time (DST) rules.

Communication Manager can automatically adjust for Daylight Saving Time; however,

this is based on the built-in schedule dates for Daylight Saving Time for each locality.

If there is a change in these schedules for a particular locality, Communication

Manager may require software updates.

In some cases, Communication Manager updates may not be available soon enough

to accommodate support of changing Daylight Saving Time start and end dates. The

6 October 2011, ver 5

manual procedures may be the only option for older Communication Manager

releases which are beyond End Of Manufacturer Support (EOMS) and do not have

patches available. This section provides instruction on how to manually make these

changes.

The two tables below show specific country examples of changes beginning in 2007.

Example 1: US and Canada Changes – early 2007

Transition Old Rules New Rules

Daylight Saving Time

Start Date First Sunday in April at 2:00 AM Second Sunday in March at 2:00

Daylight Saving Time

End Date Last Sunday in October at 2:00

A.M First Sunday in November at 2:00

A.M

Example 2: New Zealand Changes – late 2007

Transition Old Rules New Rules

Daylight Saving Time

Start Date First Sunday in October at 2:00

AM Last Sunday in September at 2:00

Daylight Saving Time

End Date Third Sunday in March at 3:00

A.M First Sunday in April at 3:00 A.M

The Following steps must be followed in the exact order specified to be used

as a manual procedure for servers running releases of Communication

Manager that do not have a Daylight Saving Time patch available or have

not upgraded to a release of Communication Manager with the required DST

rules.

See the section at the end of the document for procedures specific to the

2011 DST changes for Russia.

Manual Procedure to Change Time for Start of Daylight Saving Time: 1

1. If Daylight Saving Time rules other than 0 (zero) are being used in the daylight-

savings-rules SAT form, these rules must be updated via the SAT to appropriately

reflect the new Daylight Saving Time changes/adjustments.

2. After the Daylight Saving Time start date per the new rules occurs:

a. If the Server is synchronizing to a network time server, use the

following steps to disable synchronization.

NOTE: Once synchronization with a network time server is

disabled it is possible to experience clock drift on the

1For duplicated Server-pairs, start with the stand-by Server first. After completion of the time-change on

the stand-by Server, interchange Servers and perform the same steps to change the time on the other Server.

7 October 2011, ver 5

Communication Manager server. Clock drift occurs when the

time on the server slowly deviates or drifts from the correct

time. If the clock drift becomes too great the server time

should be set to the correct time manually (see below for

instructions on setting the time manually).

i. Select Configure Server from the Maintenance Web Interface.

ii. Click the Continue button to proceed until a Configure

individual services radio button is available.

iii. Select the Configure individual services radio button and

click the Continue button.

iv. Select Configure Time Server.

v. Note the IP address or host name of the network time server

and copy it to a safe place. This is needed when the

synchronization to the network time server is enabled again.

Select the This computer synchronizes with the duplicated

server radio button on duplicated servers and the Use Local

Clock radio button on non duplicated servers. It is important to

note that these choices might be different depending on the

release of Communication Manager Software. As long as the

choice other than Use these Network Time Servers is

selected, meaning the Use these Network Time Servers

radio button is NOT selected, the synchronization with

network time servers will be disabled.

vi. Click the Change button and a success message should be

displayed.

vii. Click the Close window button.

b. Manually set the server time to be correct.

NOTE: When setting the time manually via the Maintenance

Web Interface on Servers running Communication Manager

3.1.2 there is a known issue that can cause the server to

perform a reset! To fix this known issue contact your technical

support organization and request patch 12768 or any combo

patch or Service Pack (Service Pack 12866 or later 3.1.2

Service Packs) containing it.

i. Select Server Date/Time from the Maintenance Web Interface

ii. Set the time on the server to the correct time for Daylight

Saving Time and click the Submit button.

REPEAT THIS PROCEDURE ON THE SECOND SERVER OF DUPLICATED SERVER

PAIRS!!

REPEAT THIS PROCEDURE ON ANY ESS or LSP SERVERS ALSO AFFECTED BY

THE DST EXTENSION.

No further changes are required until after the Daylight Saving Time start date using

the old rules occurs.

NOTE: Do NOT enable synchronization with the network time server during

this interval.

8 October 2011, ver 5

3. After the Daylight Saving Time start date using the old rules occurs, the time is

automatically adjusted forward one hour on the Server. NOTE: It is very

important to let this transition occur and let the Server make the

automated time adjustment before taking additional steps!

a. At the appropriate time, the time will be set forward one hour

automatically on the server. NOTE: At this point you cannot set

the time back! You must wait one full hour after the time is

automatically set forward before trying to manually set the

time back! After waiting at least one hour, manually set the time to

be correct.

NOTE: When setting the time manually via the Maintenance

Web Interface on Servers running Communication Manager

3.1.2 there is a known issue that can cause the server to

perform a reset! To fix this known issue contact your technical

support organization and request patch 12768 or any combo

patch or Service Pack (Service Pack 12866 or later 3.1.2

Service Packs) containing it.

i. Select Server Date/Time from the Maintenance Web Interface.

ii. Set the time on the server to the correct time for Daylight

Saving Time and click the Submit button.

b. If synchronization to a network time server was previously disabled in

step 1, use the following steps to enable it.

NOTE: When enabling synchronization to a network time server

via the Maintenance Web Interface on Servers running

Communication Manager 3.1.2 there is a known issue that

causes the synchronization to fail! To fix this known issue

contact your technical support organization and request patch

12868 or any combo patch or Service Pack containing it. If the

patch is applied while synchronized to a network time server,

the Change button on the Configure Time Server page must be

clicked to activate the fix.

i. Select Configure Server from the Maintenance Web Interface

ii. Click the Continue button to proceed until a Configure

individual services radio button is available

iii. Select the Configure individual services radio button and

click the Continue button

iv. Select Configure Time Server

v. Select the Use these Network Time Servers radio button

and provide the Network Time Server information.

vi. Click the Change button and the message Successfully

added NTP information should be displayed.

vii. Click the Close window button.

REPEAT THIS PROCEDURE ON THE SECOND SERVER OF DUPLICATED SERVER

PAIRS!!

REPEAT THIS PROCEDURE ON ANY ESS or LSP SERVERS ALSO AFFECTED BY

THE DST EXTENSION.

9 October 2011, ver 5

Manual Procedure to Change Time for End of Daylight Saving Time: 2

1. If Daylight Saving Time rules other than 0 (zero) are being used in the daylight-

savings-rules SAT form, and the rules were not previously changed/adjusted to

appropriately reflect the new rules, they must be updated via the SAT.

2. After the Daylight Saving Time end date using the old rules occurs, the time is

automatically adjusted back one hour on the Server. NOTE: It is very

important to let this transition occur and let the Server make the

automated time adjustment before taking additional steps!

a. If the Server is synchronizing to a network time server, use the

following steps to disable synchronization.

NOTE: Once synchronization with a network time server is

disabled it is possible to experience clock drift on the S8xx0

series server. Clock drift occurs when the time on the server

slowly deviates or drifts from the correct time. If the clock drift

becomes too great the server time should be set to the correct

time manually (see below for instructions on setting the time

manually).

i. Select Configure Server from the Maintenance Web Interface.

ii. Click the Continue button to proceed until a Configure

individual services radio button is available

iii. Select the Configure individual services radio button and

click the Continue button

iv. Select Configure Time Server

Note the IP address or host name of the network time server

and copy it to a safe place. This is needed when the

synchronization to the network time server is enabled again.

Select the This computer synchronizes with the duplicated

server radio button on duplicated servers and the Use Local

Clock radio button on non duplicated servers. It is important to

note that these choices might be different depending on the

release of Communication Manager Software. As long as the

choice other than Use these Network Time Servers is

selected, meaning the Use these Network Time Servers

radio button is NOT selected, the synchronization with

network time servers will be disabled.

v. Click the Change button and a success message should be

displayed.

vi. Click the Close window button.

b. Manually set the server time to be correct.

NOTE: When setting the time manually via the Maintenance

Web Interface on Servers running Communication Manager

3.1.2 there is a known issue that can cause the server to

perform a reset! To fix this known issue contact your technical

support organization and request patch 12768 or any combo

patch or Service Pack (Service Pack 12866 or later 3.1.2

Service Packs) containing it.

i. Select Server Date/Time from the Maintenance Web Interface

ii. Set the time on the server to the correct time for Daylight

Saving Time and click the Submit button.

10 October 2011, ver 5

REPEAT THIS PROCEDURE ON THE SECOND SERVER OF DUPLICATED SERVER

PAIRS!!

REPEAT THIS PROCEDURE ON ANY ESS or LSP SERVERS ALSO AFFECTED BY

THE DST EXTENSION.

No further changes are required until after the Daylight Saving Time end date, using

the new rules occurs.

NOTE: Do NOT enable synchronization with the network time server during

this interval.

3. After the Daylight Saving Time end date using the new rules occurs, take the

following steps

a. Manually set the time to be correct.

NOTE: When setting the time manually via the Maintenance

Web Interface on Servers running Communication Manager

3.1.2 there is a known issue that can cause the server to

perform a reset! To fix this known issue contact your technical

support organization and request patch 12768 or any combo

patch or Service Pack (Service Pack 12866 or later 3.1.2

Service Packs) containing it.

i. Select Server Date/Time from the Maintenance Web Interface

ii. Set the time on the server to the correct time for Standard

Time (non Daylight Saving Time) and click the Submit button.

b. If synchronization to a network time server was previously disabled in

step 1, use the following steps to enable it.

NOTE: When enabling synchronization to a network time server

via the Maintenance Web Interface on Servers running

Communication Manager 3.1.2 there is a known issue that

causes the synchronization to fail! To fix this known issue

contact your technical support organization and request patch

12868 or any combo patch or Service Pack containing it. If the

patch is applied while synchronized to a network time server,

the Change button on the Configure Time Server page must be

clicked to activate the fix.

i. Select Configure Server from the Maintenance Web

Interface

ii. Click the Continue button to proceed until a Configure

individual services radio button is available

iii. Select the Configure individual services radio button and

click the Continue button

iv. Select Configure Time Server

v. Select the Use these Network Time Servers radio button

and provide the Network Time Server information.

vi. Click the Change button and the message Successfully

added NTP information should be displayed.

vii. Click the Close window button.

REPEAT THIS PROCEDURE ON THE SECOND SERVER OF DUPLICATED SERVER

PAIRS!!

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