Sam, We do not currently use our ESS for larger than model 3s We define every linear data set for both storage pool and database volumes to use 100% of a model 3. We also use file volumes for database snapshot and for backupsets. These are defined at 2gb. We do not have much of an issue with device delays with this scenario. Our problem is getting enough cpu to stress the i/o I too would be interested to hear the experience of anbody using the larger device sizes. regards, John
Sam Sheppard <[EMAIL PROTECTED]> on 06/11/2003 12:04:48 AM Please respond to "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] cc: (bcc: John Naylor/HAV/SSE) Subject: OS/390 volume sizes We are installing an ESS in the next couple of weeks and I'm interested in any recommendations anyone has on appropriate volume sizes for the database and storage pools on this device. Currently, we are OS/390 V2.10 with everything on an RVA2 with 3390-3 device sizes. With the ESS, you can go up to 'mod-27' sizes. Any guidelines out there for mod-3 vs. mod-9 vs. bigger would be appreciated. Thanks, Sam Sheppard San Diego Data Processing Corp. (858)-581-9668 ********************************************************************** The information in this E-Mail is confidential and may be legally privileged. It may not represent the views of Scottish and Southern Energy plc. It is intended solely for the addressees. Access to this E-Mail by anyone else is unauthorised. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. Any unauthorised recipient should advise the sender immediately of the error in transmission. Scottish Hydro-Electric, Southern Electric, SWALEC and S+S are trading names of the Scottish and Southern Energy Group. **********************************************************************
