Tuesday, March 6, 2012

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)

Tuesday, January 31, 2012

Some important EMC CLI commands

Contents

[hide]

· 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