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Storage & Clustering Community Blog
Showing posts tagged with Tip/How to
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Kimberley | 01 May 2009 | 0 comments

In conjunction with Symantec Tech Support, we've started publishing a list of the monthly Tech Support 'Top Technotes' in the Storage Forums area. This is a compilation of the technotes that were most accessed by customers during the prior month. The list covers Storage Foundation Unix/Linux (including Volume Manager and File System), Storage Foundation Windows, and Storage Foundation Manager. Here's the Top Storage Technote April 2009 list. Visit the Technical Support site for full technotes, documentation and product downloads.

New Screencast Series
If you're looking for other ways to get updated product info, check out the available screencasts in the Connect Storage Videos section - these are hands-on product and feature demos created by Symantec's...

elizabetha nelson | 28 Apr 2009 | 0 comments

Problem/Symptoms

During snapshots, server jobs fail due to Storage is inaccessible to the Recovery Solution Server. The following event appears in the application event:

The data storage location 'F:\Altiris\DataStorage' is offline and not accessible now.
Local Event Code: 0x8008000f
System Event Code: 0x00000020: The process cannot access the file because it is being used by another process.
SbsName: , SbsKey: 0, 0

Data File Synchronization job for Synchronous Storage completes with errors.

Environment

Recovery Solution 6.2.2760 (SP2)
EMC CLARiiON SAN Storage*
Synchronous Storage

Cause

It is a physical (timing) problem on the storage.

Definition of the disk latency in a SAN environment is a very difficult task, because there are many physical and logical nodes: operating system, physical disks, RAID, one or more HBAs, one or more fibers (HBA > SAN), ports on SAN, may be fiber-switch, and so on...

Eric.Hennessey | 27 Apr 2009 | 0 comments

A very useful - yet often overlooked - feature of Veritas Cluster Server is Limits and Prerequisites. This feature is often used in conjunction with Service Group Workload Management (SGWM), but can also be implemented on its own. In this post, I'll describe what this feature does and how you can put it to use.

Limits and Prerequisites are attributes in VCS. Limits are system attributes applied to the cluster member nodes, while Prerequisites are attributes applied to service groups. Both are key/value type attributes defined by the user. To better understand how these two attributes work together, it's best to use a common scenario as an example.

Let's say I have a VCS cluster consisting of four nodes and four Oracle database service groups. Let's assume that (1) each node is provisioned identically with the same processor and memory power and (2) each service group places about the same amount of load on each system. Implementing SGWM will automatically keep...

Karthikeyan Sundaram | 22 Apr 2009 | 1 comment

 Medicine for “TB”:

I bought a setup where 1000 and 1000 GB’s of data stored in a storage box. Users frequently access this box to store their project related data’s. We had an audit before 2 weeks and when we check for the space usage, we found 50 % of space is occupied by the SQL DB’s that are copied to this box in daily manner. I have informed DB Administrators regarding this issue and they explained me the clear setup.

Our corporation System uses MS SQL as database engine. As servers don’t have much space to store DB backups(to store one more backup copies), SQL maintenance plan is scheduled to run in mid night to backup the db’s to storage box and VERITAS backup is scheduled to run in the morning to backup the DB backup files from Storage box. DB backup files will be backed up to tapes and tapes will be sending to offshore locations in weekly manner. Suddenly I got a question -“What about the DB files that were...

Karthikeyan Sundaram | 22 Apr 2009 | 1 comment

Get some Live sessions to make your setup more strong!

Here > https://symantecevents.webex.com

phil samg | 14 Apr 2009 | 0 comments

To make better use of storage resources, organizations can leverage storage management technologies. Storage resource management (SRM), for example, enables IT to navigate the storage environment and identify old or non-critical data that can be moved to less expensive storage. These tools can also be used to predict future capacity requirements.

Managing storage without an SRM tool is like going on a journey without a map. Having a clear plan and objective before taking action is the best assurance of rapid progress and success. Storage managers should ask some questions before cost-cutting:

  • What is the average utilization rate?
  • What is the utilization rate by application?
  • Which applications are growing fastest? Slowest?

SRM technology can help companies make an assessment and provide an enterprise-wide view of the storage environment, which helps identify problem areas, consolidation opportunities, and to create a priority...

Rishi Manocha | 02 Apr 2009 | 0 comments

The following services have just been updated. Please find below new functionalities now available to you:

Veritas Installation Assessment Service [VIAS]

  • Combined Notification Center – Users can create user defined ad-hoc or environment specific notifications for new patches, ASL/APM releases, new versions of the HCL and updates to Veritas Operations Services (VOS) from one easy-to-use web application. Both the notification center and VIAS reports now connect directly with Patch Central allowing the applications to synergistically cross-leverage customer data
  • Windows Support (Beta) – Support for the SFWHA “ConfigChecker” application to pre-qualify Windows environments

Find Out More
Link to VIAS

...

Kimberley | 01 Apr 2009 | 0 comments

For those of you who like to get your information delivered, here is a quick list of RSS feeds available for the Storage Management community:

All Storage Management Content (Forums, Blogs, Articles, Videos, Events)
http://www.symantec.com/connect/item-feeds/all/701...

Storage Management Forums
http://www.symantec.com/connect/storage-management...

Products Forums
CommandCentral: http://www.symantec.com/connect/commandcentral/for......

M.Pozzi | 31 Mar 2009 | 0 comments

This is a practical example on how to create and manage a linked snapshot in Storage Foundation.
Initial situation:

Source dg: dg_src (with dco)

root@ / #vxprint -Qqthg dg_src
dg dg_src       default      default  6000     1238408559.174.tx088sd1
dm lun_src      xp12k0_11    auto     65536    204713728 -
v  src_vol      -            ENABLED  ACTIVE   20971520 SELECT    -        fsgen
pl src_vol-01   src_vol      ENABLED  ACTIVE   20971520 CONCAT    -        RW
sd lun_src-01   src_vol-01 ...

Eric.Hennessey | 05 Mar 2009 | 0 comments

Hello from the Storage Foundation/High Availability Technical Product Management team, and welcome to the new Symantec Connect!  In this first VCS blog entry under the new format, we'll take a look at reducing the cost of HA by building larger, more "intelligent" clusters.

When most people think of clustering, they think of a 2-node, active/passive cluster in which a mission-critical application runs on one system (the active node) while a stand-by system (passive node) is ready to take over if something fails on the active node.  This approach works fine in an environment with one or maybe two mission-critical applications, but consider the costs of this approach in an environment with 10 or 15 or 20 mission-critical applications.

To avoid the costs of excessive hardware sparing, an "N+1" approach is often implemented in which "N" represents the number of active nodes and "+1" represents a single spare (idle) server....