Lizette, One of the main selling points of the DataDomain is the Global Compression feature (data deduplication). This works well for multiple backups but not for archived data which ML2 data effectively is, so in your case using a DataDomain at the backend would be a very expensive option.
Luminex have options for mainframe tapeless solutions that include 'hardware compression' which is a much more appropriate solution for archive type data. Richard -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Lizette Koehler Sent: Thursday, August 29, 2013 3:16 PM To: [email protected] Subject: EMC DLM Data Domain and z/OS We are beginning to investigate the possibility of having a DLm and Data Domain tapeless solution in our shop. We are just looking If anyone in a medium to large shop is using this, and you would like to share your observations with me, that would be great. We have about 1PB of tape storage (mostly HSM ML2 data) between my two data centers. And I would like that data to be replicated to both devices. I will also have long tern retention needs for some of my data. I need to have my primary tape data in the secondary data center for DR. It would be nice to have my critical development data sent to the primary site just in-case the DR site is the one that is down. Mostly my Source Management files. EMC is suggestion an DLm8000 family and Data Domain for dedup of the data for the mainframe. Some questions I might be interested in How is the performance when the data has to be rehydrated? Is there any significant impact on distances between DD + DLm for DR usage? What size transmission pipe will make it happy? Our Primary and secondary sites are about 800 miles apart. Are there any concerns or issues that might be good to know up front? Any lessons learned. Thanks for any input. You can respond to my private email : starsoul at mindspring dot com Lizette ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
