Lizette, ML2 data does not dedupe well, 2 to 1 if you are very lucky. DataDomains are a very expensive option if the dedupe ratio is poor. Ask EMC if they have other disk options that can be placed behind their DLM boxes that just have normal compression and replication features, it should work out alot cheaper, if not check out other solutions.
Richard ________________________________________ From: IBM Mainframe Discussion List [[email protected]] on behalf of Lizette Koehler [[email protected]] Sent: 01 October 2013 02:41 AM To: [email protected] Subject: DLm2100 and DD4500 Config for MF Just curious if any one has experience with a DLm2100 with a DD4500 for the Mainframe? I need to know any lessons learned. Any things to watch out for? Any performance considerations? I/O Gen considerations? I do not find a lot of details on how the device works with internet searches. Any guidance will be helpful. My objective is to compare and contrast a DLm8100 with DD990 with the DLm2100 with DD4500. Probably 80% of my tapes are ML2. And I have software encryption. To do a comparison, I will need to address those issues as well as performance. Thanks for any thoughts. So far, you all have provided a lot of good info, I just need this one little bit to be done. Thanks 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
