• Expiration of storage lease—The New Jersey storage needed to be returned
to the leaseholder.
• Hardware move — Physical servers had to be moved via courier.
• Data move over distance — Data had to be moved from the New Jersey
storage area network (SAN) to the New York City SAN.
• Limited downtime — The only allowable outage was from Friday night
to Saturday morning.
The bank reviewed several migration options:
• Offline migration — Restore from tape after physically moving the servers
was possible but would have required complete shutdown of application
servers over a 48-hour period. Availability requirements made this option
impossible.
• FTP transfer — The lack of bandwidth control, inability to verify the
complete transfer of data and the requirement for file-by-file movement
prompted the rejection of this option.
• VERITAS Volume Replicator — This option required the installation of
VERITAS Volume Manager on the source and target machines.
• Hardware-based mirroring — This option was not possible because the
source and target arrays were dissimilar.
Softek’s TDMF UNIX (IP) software was chosen for its ability to work
with multiple operating systems and perform fast, controllable transfers.
The migration allowed the bank to realize economies of scale and increase
administrative control. In addition, the increased storage capacity allowed the
bank to more fully utilize the Sybase application in support of key operations.
Softek solution: global migration to new storage over distance
1. In the target environment, all new storage was defined, with the bank opting
to use “swing server” to perform the migration. Data for the New Jersey servers
was allocated to the swing server, which served as a proxy during the migration.
Storage migrations made simple.
Page 21
Highlights
A Fortune 1000 bank chose Softek’s
TDMF UNIX (IP) software for its
migration based on its ability to
work with multiple operating sys-
tems and perform fast transfers.
