Utility for fixing time sync issue - Domain Time II

Utility for fixing time sync issue - Domain Time II

In recent past faced issues with time sync issues when the domain controller or particular server getting 100% CPU utilization for long time and this results in delaying servers clock by duration which can create time sync issue along with kerberos to fail.

Domain Time II is the tool which help to narrow this gap and triggers frequent time sync to avoid this issue.

Resolving time Sync issue in Windows - Active Directory domain

The DC with the PDCemulator role is the time source in the domain. You can
use this command to configure the PDCEmulator to an external time source:

w32tm /config /manualpeerlist:peers /syncfromflags:manual /reliable:yes /update

With "peers" you can set the time source, either DNS name (time.windows.com)
or an ip address from a reliable time source.

In case you have another DC in domain acting as time server - use above command to point PDCEmulator to point to this time server.

General commands for time sync and time details on servers, DCs.

c:\>Net time (to check time source and current time)
c:\>Net time /domain:domain name /set (local system time with corresponding domain controller)
c:\>Net time /QUERYSNTP (To check current time source)
c:\>w32tm /resync (to sync with configured time server)
c:\>w32tm -once -test –v (watch an attempt to sync this computer to its time source)

Some important EMC CLI commands

Contents

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· 1 Allocating and Unallocating Storage on a Symmetrix

o 1.1 Adding Storage

o 1.2 Removing Storage

o 1.3 SRDF Configuration

o 1.4 SRDF Operations

§ 1.4.1 List SRDF group across different dmx

§ 1.4.2 SRDF Split and failover

§ 1.4.3 Set SRDF mode to adaptive copy

§ 1.4.4 Set SRDF mode to sync

§ 1.4.5 Search device 4FC from Symmetrix ####

§ 1.4.6 List capacity of host myhost in Symmetrix ####

§ 1.4.7 Swap the personalities of the devices and mark the old R1 devices to be refresh from the old R2 dev

§ 1.4.8 To remove dev in a SRDF group

§ 1.4.9 To add dev in a SRDF group

§ 1.4.10 Delete and Add a SRDF group

§ 1.4.11 List connected dev on control center manager

§ 1.4.12 Check masking by dev or wwn

§ 1.4.13 Check if the wwn login to the fabric port

o 1.5 TimeFinder (BCV) Configuration

o 1.6 Common Symmetrix Commands

· 2 Allocating and Unallocating Storage on a Clariion

o 2.1 About Navisphere CLI

o 2.2 Create a Navisphere Security File on the host

o 2.3 Adding Storage

§ 2.3.1 Creating a Raid Group

§ 2.3.2 Get status of the Raid Group

§ 2.3.3 Bind the LUN

§ 2.3.4 Create Storage Group

§ 2.3.5 Register the Host

§ 2.3.6 Present LUN to Host

§ 2.3.7 Create Meta LUN

o 2.4 Removing Storage

§ 2.4.1 To get Partitions Properties in a RAID Group

§ 2.4.2 Destroying a RAID Group via Command Parameters

§ 2.4.3 Destroying Storage Groups

o 2.5 Clariion MirrorView Configuration

o 2.6 Clariion SnapView Configuration

o 2.7 Common Clariion Commands

· 3 PowerPath Commands

o 3.1 To display powerpath registration key

o 3.2 PowerPath license registration

o 3.3 To set or validate the Load balancing policy

§ 3.3.1 To set the policy to default Clariion Optimization

§ 3.3.2 To set the policy to default Symmetrix Optimization

o 3.4 Restoring device paths under PowerPath control on a Solaris host

o 3.5 Display the powerpath devices for the new LUNs

o 3.6 Rename powerpath devices

o 3.7 PowerPath shows paths in an Active/Dead state

o 3.8 Solaris host not able to see newly assigned CLARiiON LUN's.

o 3.9 How to completely remove/uninstall PowerPath package on Solaris.

o 3.10 Reconfigure EMC master agent for relocated ECC server

o 3.11 What is the meaning of corrupt label; wrong magic number in /var/adm/messages on a Solaris server?

· 4 Reference Architecture for Backup and Recovery of OLTP's with Data Domain and using Fibre Channel

o 4.1 Document purpose

o 4.2 DB2 Backup Terminology and Parameters

§ 4.2.1 Backup Type

§ 4.2.2 Logging

§ 4.2.3 Log file

§ 4.2.4 Recovery history file

o 4.3 Reference architecture

o 4.4 Hardware and Software Installation

§ 4.4.1 Hardware Installation

§ 4.4.1.1 M5000

§ 4.4.1.1.1 LAN Information

§ 4.4.1.1.2 SAN Information

§ 4.4.1.2 Clariion

§ 4.4.1.2.1 Physical Size Considerations

§ 4.4.1.2.2 Drive Configuration Rules and Guidelines

§ 4.4.1.2.3 Power Requirements

§ 4.4.1.2.4 LAN Information

§ 4.4.1.2.4.1 Initializing the storage system

§ 4.4.1.2.5 SAN Information

§ 4.4.1.3 Centera

§ 4.4.1.3.1 Power Requirements

§ 4.4.1.3.2 LAN Information

§ 4.4.1.3.3 SAN Information

§ 4.4.1.4 Celerra

§ 4.4.1.4.1 Power Requirements

§ 4.4.1.4.2 LAN Information

§ 4.4.1.4.3 SAN Information

§ 4.4.1.4.4 NDMP tape backup device cables

§ 4.4.1.5 Data Domain 880

§ 4.4.1.5.1 Power Requirements

§ 4.4.1.5.2 LAN Information

§ 4.4.1.5.3 SAN Information

§ 4.4.1.6 SL3000 Tape Labrary

§ 4.4.1.6.1 Power Requirements

§ 4.4.1.6.2 LAN Information

§ 4.4.1.6.3 SAN Information

§ 4.4.2 Software Installation

· 5 NetWorker Commands

o 5.1 NetWorker Resource Relationships

o 5.2 mminfo commands

o 5.3 mminfo, savetime and greater than/less than

o 5.4 How can I find out what files were backed up?

o 5.5 Changing saveset browse/retention times

o 5.6 Labelling and Relabelling without Unmounting

o 5.7 mmpool command

o 5.8 Setting cleaning tape usage/registering a cleaning tape