IBM Systems Magazine, Mainframe Edition - March/April 2011 - 31

they allowed Citi to use LPARs on its mainframe systems to channel backups. This meant the organization’s previously distributed backup model for its largest and most — ucture, Citigroup Inc. complex servers could erprise-systems infrastr Managing director of ent be consolidated to fewer systems and therefore Initial backups are of the fewer backup media. full system. Following that, daily “This is a very cost-effective incremental backups take place, backup mechanism,” Kennedy says. with FDR/UPSTREAM looking to “We were able to leverage the copy only the files that have changed mainframe tape infrastructure, which since the previous backup. Once a allowed us to make the most of our week, merged backups combine the cartridges by filling them with data that incrementals to create a new, full-system had like retention requirements.” That weekly backup. can be difficult to do in a distributed “Those weekly backups can take backup environment, where overall place outside the typical window for cartridge utilization of unexpired data server backups, and we don’t have to tended to be lower. Managing cartridge be connected to the server to do that,” utilization is key to managing the overall Kennedy says. “This is in contrast to cost of a backup solution. many backup models, where you have to be connected to the server. Now we An Important Characteristic can drive those business class machines Other organizations may have been 24 hours a day with productive work satisfied with these improvements, but without impacting the servers that are not Citi. When IBM announced the being managed by those machines. It’s System z10 BC machines, Citi decided all very efficient.” to further bolster its backup model by Citi can now also aggregate dedicating these boxes—one located backups based on retention. In the at each of the corporation’s primary past, different backups with different North American data centers—purely retention rates were stacked on top of for backup purposes. This would allow each other. Sometimes tapes were kept the organization to move all of its in storage because, even though one backup loads for its largest servers off server’s retention-based backup may its production systems. have expired, others hadn’t. Citi installed one z10 BC at each “You might end up with a situation of its main North American data where 60 or 70 percent of the data on a centers, with the boxes supporting the tape might be expired, but you couldn’t local backup requirements for large reuse that tape because the other 30 servers at these data centers. When or 40 percent had not yet expired,” a group wants to add a server to the Kennedy says. “You ended up with backup schedule, it fills out a changetape capacity you couldn’t reclaim. management template that identifies Since FDR/UPSTREAM uses more what it wants backed up, how often traditional mainframe tape-management they want it backed up and what the mechanisms, we can now stack data so retention period is for the backup. At when data on the tape has expired, the that point, someone in the distributed tape is immediately available for reuse.” backup team creates an FDR/ This data is encrypted as it’s UPSTREAM job and schedules it written to tape, some 650 TB a month, according to user requirements.

ng “IBM has some stro algorithms built into l as the machines, as wel crypto engines and ent.” certificate managem

according to Citi’s Jim Jurasin, vice president of enterprise systems infrastructure. The encryption process occurs on the organization’s IBM tape drives instead of on the System z10 BC machines. This reduces CPU overhead, which allows the mainframes to run their jobs without taking performance hits. Citi has also implemented disk encryption on the backup servers “to ensure the environment is completely secured from the time the data goes to disk and then to tape,” Kennedy adds. “That’s an important characteristic for us,” he continues. “We have a lot of very sensitive data around here, so it’s critical that we make it as secure as possible, and IBM has some strong algorithms built into the machines, as well as crypto engines and certificate management.”

Exceeding Expectations
Citi’s customers probably don’t think about this type of back-end processing, but if they did, they’d be impressed at the measures the corporation has taken to make sure their data is backed up, safe and secure. Additionally, this streamlined backup model has also benefitted the corporation itself. Backups that run on the BC machines no longer bog down the corporation’s traditional networks, servers don’t have to be taken offline when they’re being backed up, backup media is being used more efficiently and automated processes have reduced backup administration. In the end, it’s all about Citi’s customers and their service expectations—which are now more than being met.

Jim Utsler, IBM Systems Magazine senior writer, has been covering technology for nearly 20 years.

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IBM Systems Magazine, Mainframe Edition - March/April 2011

Table of Contents for the Digital Edition of IBM Systems Magazine, Mainframe Edition - March/April 2011

IBM Systems Magazine, Mainframe Edition - March/April 2011
Table of Contents
Editor's Desk: Predicting a Good Read
Dashboard: Charging Ahead
Data Display: Smarter Cities Large and Small
Think Smarter: Capture Insight From Real-Time Operational Data With Smart Analytics Systems
Insider: Agnostic Development Tools Support Mainframe-Centric Businesses
Trends: DataPower Support for zEnterprise Extends its Multiplatform Capabilities
Case Study: Citigroup tames its backup environment with dedicated mainframes.
Driving Outcomes: Successful companies fuel business with predictive analytics.
Hurdling Barriers to Success: IBM demonstrates Cognos BI on Systems z is less expensive than x86 deployments.
Tips and Techniques: Overcome Eight Key Service-Delivery Challenges and Reduce Costs
Solutions
Advertisers’ Index
Stop Run: Bijan Davari Changed the Computer Chip®
Reference Point
IBM Systems Magazine, Mainframe Edition - March/April 2011 - IBM Systems Magazine, Mainframe Edition - March/April 2011
IBM Systems Magazine, Mainframe Edition - March/April 2011 - Cover2
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 1
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 2
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 3
IBM Systems Magazine, Mainframe Edition - March/April 2011 - Table of Contents
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 5
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 6
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 7
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 8
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 9
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 10
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 11
IBM Systems Magazine, Mainframe Edition - March/April 2011 - Editor's Desk: Predicting a Good Read
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 13
IBM Systems Magazine, Mainframe Edition - March/April 2011 - Dashboard: Charging Ahead
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 15
IBM Systems Magazine, Mainframe Edition - March/April 2011 - Data Display: Smarter Cities Large and Small
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 17
IBM Systems Magazine, Mainframe Edition - March/April 2011 - Think Smarter: Capture Insight From Real-Time Operational Data With Smart Analytics Systems
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 19
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 20
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 21
IBM Systems Magazine, Mainframe Edition - March/April 2011 - Insider: Agnostic Development Tools Support Mainframe-Centric Businesses
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 23
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 24
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 25
IBM Systems Magazine, Mainframe Edition - March/April 2011 - Trends: DataPower Support for zEnterprise Extends its Multiplatform Capabilities
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 27
IBM Systems Magazine, Mainframe Edition - March/April 2011 - Case Study: Citigroup tames its backup environment with dedicated mainframes.
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 29
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 30
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 31
IBM Systems Magazine, Mainframe Edition - March/April 2011 - Driving Outcomes: Successful companies fuel business with predictive analytics.
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 33
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 34
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 35
IBM Systems Magazine, Mainframe Edition - March/April 2011 - Hurdling Barriers to Success: IBM demonstrates Cognos BI on Systems z is less expensive than x86 deployments.
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 37
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 38
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 39
IBM Systems Magazine, Mainframe Edition - March/April 2011 - Tips and Techniques: Overcome Eight Key Service-Delivery Challenges and Reduce Costs
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 41
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 42
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 43
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 44
IBM Systems Magazine, Mainframe Edition - March/April 2011 - Solutions
IBM Systems Magazine, Mainframe Edition - March/April 2011 - 46
IBM Systems Magazine, Mainframe Edition - March/April 2011 - Advertisers’ Index
IBM Systems Magazine, Mainframe Edition - March/April 2011 - Stop Run: Bijan Davari Changed the Computer Chip®
IBM Systems Magazine, Mainframe Edition - March/April 2011 - Cover3
IBM Systems Magazine, Mainframe Edition - March/April 2011 - Cover4
IBM Systems Magazine, Mainframe Edition - March/April 2011 - Reference Point
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