Lizette, I'm sorry but I have to disagree with you. A 3390-27 or even 3390-54 in no way "cramps" your style. There is nothing in the underlying technology from any vendor that would cause the performance of larger volumes to be any different when an Array Group is sliced and diced to emulate a large or small form factor.
The only problematic issue with large volumes is IOS Queuing, and that is overcome with PAV. If you don't have PAV than good candidates for large volumes would be low activity/archive datasets, Hiperbatch managed files, TMM pools, etc. Ron -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Lizette Koehler Sent: Monday, July 09, 2007 9:37 AM To: [email protected] Subject: Re: [IBM-MAIN] 3390 Model 27 John, Just from reading many posts and manuals on it, I would say that unless you have a real need for a very large volume - the performance and support could cramp your style. Look at previous archive entries for this device type. The issues for recovery, backup, restore time frames have me very leary of using them yet. I will be installing 1 3390-27 in the near future. Its only purpose will be for our SMP/E Downloads for Service Pac. Other than that, I feel that 3390-3 and 3390-9 are sufficient for us for now. Lizette > >We are expanding our storage by 1.5TB...we have an option to make some of >this 3390-27 volumes... > > > > We are looking for a best fit allocation for these volumes: > JES2, public, storage, paging, ML1? > > Our concerns include duration of a full volume backup, device >response time, contention. > > Our DBAs say they will not use for our IDMS databases... > > Suggestions? Experiences? Advice? > > > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
