Friday, October 19, 2012

AIX: chvg -g on scalable and mirror pool VGs can fail with 0516-058 lchangevg: Not enough memory available now.

Problem summary:

Can not increase size of scalable volume group with mirror pool with 29 and more hdisks on AIX 6.1.

Problem description:

chvg -g on scalable and mirror pool VGs can fail with
# chvg -g VGName
0516-058 lchangevg: Not enough memory available now.
         Try again later
0516-732 chvg: Unable to change volume group VGName
if the VG has 29 or more hdisks

Thursday, October 11, 2012

TSM: Server doesn't start after upgrade from 6.2.3 to 6.2.4 - page corruption issue on TSMDB1

Technote (troubleshooting)

Problem(Abstract)

TSM Server doesn't start after upgrade from 6.2.3 to 6.2.4

Google does redirect of blogger sites to a country-specific URL (ccTLD)

In last days I noticed that Google redirects my blog from address radek-it.blogspot.com to radek-it.blogspot.cz.

I googled today to know the reason of doing that and here is the explanation:

http://support.google.com/blogger/bin/answer.py?hl=en&answer=2402711

How can they do such change without noticing blog owners?
Yes, I know, it's for free but anyway I don't agree with this process and I'm considering to move blog from blogger to own web hosting with another blogging application.

TSM Client Functional Compatibility Table for versions 6.1, 6.2, 6.3

Which IBM Tivoli Storage Manager (TSM) servers support and are compatible with the major new functionality in the TSM 6.1, 6.2, and 6.3 clients?


Database size, database reorganization, and performance considerations for Tivoli Storage Manager Version 6 servers

Technote (troubleshooting)

Problem(Abstract)

Unexpected database growth and reduced server performance can occur over time on a Tivoli Storage Manager Version 6 server.

For more check IBM web site:

http://www-01.ibm.com/support/docview.wss?uid=swg21452146&myns=swgtiv&mynp=OCSSGSG7&mync=E

How to check missing library volumes in TSM using QUERY LIBVOLUME and SHOW SLOTS

Technote (troubleshooting)

Problem(Abstract)

Missing library volumes from the QUERY LIBVOLUME output when compared with the SHOW SLOTS output.

Estimating deduplication on a TSM server database and storage pools

Determining the impact of deduplication on a Tivoli Storage Manager server database and storage pools

How can I tell how much Tivoli Storage Manager server database space is being consumed to manage my deduplicated storage pools? How much data am I saving in my deduplicated storage pools? If my server continues to manage more and more data, how much growth can I expect within my database? This document addresses these questions from a cost-benefit angle. 


For information go to IBM web site:
http://www-01.ibm.com/support/docview.wss?uid=swg21596944



Tuesday, October 2, 2012