Database & Cloud – Page 4 – Finding the right solutions

VirtualBox VM caused system hung after laptop upgrade

In last week I upgraded my laptop from T420s to E485 to get maximum 32G memory also because the T420s was so old and the cooling system worked inefficiently, so during the summer it would become slowe...

10/06/2019Oracle129 viewsComments

Configure iSCSI target on latest NexentaStor Community Edition

Last night I installed the latest NexentaStor Community Edition (5.2.1) and tried to create an iSCSI target then added it to some ESXi nodes to build my home lab environment.At the beginning I tho...

28/07/2019Virtualization377 viewsComments

So lazy I am!

Cannot image I have not written anything for such a long time!These days my primary task, almost the only task, is to pass the IELTS exam. Although I have got big improvement, now I can pass the L...

19/08/2015English86 viewsComments

Baidu and Google

My first post appeared on Dec 12, now Google seems already found my website, and able to find most of the posts. I don't know how Google finish this task, but have to say I'm surprised. About Baidu,...

19/12/2014Life112 viewsComments

mysql.user table is damaged. Please run mysql_upgrade

I have forgot why I upgraded my blog to PHP7 and MySQL5.7, but I just did it.First have to say, even I had no upgrade plan for such thing. At that time I thought I could upgrade the MySQL rpm to 5...

15/04/2017MySQL2,034 viewsComments

Scheduling policies for mirrored volume on AIX system

On the day before last day, I helped my friend to handle an Oracle block corruption issue of her SAP system.From the alert log file, I found many error messages of corrupted blocks, and I tried to...

11/03/2017Oracle203 viewsComments

The difference between ‘&&’ and ‘-a’

These days I am reading the book 'Advanced Bash-Scripting Guide' and I got confused about '&&' and '-a'.The related part was here: [ 1 -eq 1 ] && [ -n "`echo true 1>&2`" ] # t...

18/08/2018Linux213 viewsComments

Fix the UPnP issue in double NAT environment

After several days research, I fixed the UPnP issue in my own network environment.Let me introduce my network environment first so you will know why I have to fix this issue.I share the same h...

27/02/20181,909 viewsComments

Migrate the SQL Server 2008

Recently I migrated one SQL Server 2008 from one server to another with different directories, and did encounter some problems. Finally I resolved all of them, and though maybe I should make a note. ...

29/08/2015SQL Server119 viewsComments

Archivelog backups were not removed per backup policy

Suddenly our support guys found some archivelog backups were not deleted even they were not needed by the backup policy ( recover window of 7 days).At the beginning I thought maybe it was a simila...

30/11/2019Oracle150 viewsComments

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