Storage

Reading the newspaper can be scary for mainframe data center managers. Headlines shout about the theft of millions of names from credit card company databases or the loss of tapes containing sensitive records of hundreds of thousands of government employees. The scariest part may be that these data losses and the myriad problems associated with them could have been avoided. All these organizations needed was widespread encryption of stored data…

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Introduced in May 2002 on zSeries G7 systems, the Fibre Channel Protocol (FCP) opened the door to the Small Computer System Interface (SCSI) world for Operating Systems (OSes) running on a zSeries machine. While access to classical zSeries storage via ESCON and FICON channels required control units that conform to zSeries- specific I/O and storage access protocols, the FCP channel allows attaching industry-standard storage controllers. These controllers typically use the SCSI command protocol, based on different underlying physical transmission media and protocols. …

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Explosive information growth has many corporations struggling to protect their information assets. Data loss, never an attractive proposition, has become more risky than ever, especially due to new corporate and regulatory mandates for information retention. The threat of terrorism, regional blackouts, and natural disasters has many enterprises reviewing and retooling their existing plans and procedures to ensure their data is adequately protected and recoverable.
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The data storage industry has steadily progressed, based on a model of delivering increasing device capacity with a decreasing price per unit. How often have you heard someone state how cheap storage has become? Since the early ‘90s, the price per gigabyte of disk storage has fallen 25 to 40 percent annually. Most of the dialogue centers around the price and capacity of storage, but the third key element—performance—is less often discussed yet it’s increasingly important…

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Sizing Your ESCON to FICON Conversion

When you invest in new mainframe disk or tape storage equipment, you’re most likely looking at FICON equipment. Most modern disk and tape sub- systems are so fast they need FICON channels to exploit the performance potential they offer. FICON has been around for five years and all vendors are in at least their second iteration of the hardware, software, and firmware. This means you can expect a smooth, fast ride when investing in FICON…

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As an IBM mainframe shop, you’ve inevitably encountered the dilemma of migrating from Enterprise System Connection (ESCON) to Fiber Connectivity (FICON) channel. You’ve weighed the pros and cons of this major overhaul, but you’re still undecided whether it’s worth the time, effort, and cost. This article examines why ESCON has been widely adopted in the mainframe world and shows why migrating to FICON is the best choice for your business. At the end of this article, you may ask yourself, “Is 2005 the year for our FICON migration?”…

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