Chapter 3: Basic System Operations
Before Upgrading Firmware
58
StorNext M660 Metadata Appliance Hardware Guide
Before Upgrading Firmware
TSM Indexing Delay for
Large Databases
A database index named
classndxatimeme
will be automatically
added to the tmdb.tier000files% and tmdb.tier001files% tables upon
starting TSM for the first time after upgrading to specific StorNext 5
releases.
StorNext 5 Releases affected
: 5.0.1, 5.1, and 5.1.1
Upgrading from
: 4.3.2, 4.3.3, 4.7.0, 4.7.0.1, 4.7.1, 4.7.2, and the initial
release of StorNext 5.
Note:
This does not apply to direct upgrades from StorNext 5 Release
5.0.1 to StorNext 5 Release 5.1 or later. So do not use the script
below for these upgrades.
This index improves the performance of certain operations such as
truncation policies. However, the creation of this index can take multiple
hours for very large databases. TSM will be unavailable after upgrading
until the indexing has completed.
Running the Script
To minimize TSM downtime after upgrade, the
classndxatimeme
index
can be created prior to performing the upgrade using the
index_tierfiles.pl
script availablefrom the StorNext Metadata
Appliances page on CSWeb. The script can be run while TSM is running,
although it may impact the performance of other operations while the
index is being added to the database.
Caution:
The following script should only be executed against
StorNext release as indicated in the previous section.
To manually add the index:
1
Download the
index_tierfiles.pl
file from CSWeb.
2
Login to the primary MDC, and access the command line of the
system.
• User:
stornext
• Password: (enter the password for the
stornext
account)