The key migration challenges were as follows:
• Adding new storage—The goal was to free up existing storage and implement
new faster, cheaper storage.
• Limited downtime — The application had a limited downtime window from
12 a.m. to 6 a.m. Saturday morning and from 12 a.m. to 2 a.m. Tuesday
morning — but it was estimated that the full migration would take a week.
• Reconfiguration of a large number of volumes — There were 30 volumes to
be moved, creating potential configuration issues.
The bank considered these options:
• Restore from tape backups — This was not possible due to application avail-
ability requirements.
• EMC Open Migrator — This was initially selected but failed during an early
migration test.
• File-level migration/replication — This was considered but found to be too
expensive and difficult to configure for users lacking expert-level implemen-
tation experience.
Softek’s TDMF Windows (IP) software was chosen because of its ease of
use, price and ability to maintain continuous application availability during
data migration.
Softek solution: local Windows array-to-array migration
1. During scheduled Saturday downtime, Softek TDMF software was installed
on the production server. Target volumes were connected to the volume/disk
manager and the system was rebooted to allocate the BAB buffer (RAM)
and register target volume at volume/disk manager. Installation took ten
minutes per server. Application was restarted at the end of scheduled downtime.
Storage migrations made simple.
Page 26
Highlights
A Fortune 500 bank chose Softek’s
TDMF Windows (IP) software for
its ease of use, price and ability to
maintain continuous application
availability during data migration.
