Re: 2105-800 to EMC DMX4 conversion
>explore some small volumes for spool, CDS files etc and other reserve >sensitive files You really don't have to do that anymore (imo). With faster DASD, channels, reserve to enq conversion, and PAV (to name a few), the days of 'smaller' volumes are effectively over. - -teD 300,000 Kilometres per Second Not only is it a good idea! It's the LAW!!! -- 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
2105-800 to EMC DMX4 conversion
We are planning to move our zSeries disk from our 2105-800 to an EMC DMX4 disk array later this year. Currently the 2105 is mirrored and that is what we are probably going to do on the DMX. I believe the 2105 also stripes the zSeries logical volumes across multiple little SCSI disks. The 2105 handled all of the logical volume placement within the array that appears to be all user configurable in the DMX so I am curious on the various opinions for the Hiper (sp) size in the DMX. The array will be used for distributed systems and zSeries and the distributed work is already using a DMX1000 that will migrate so I think they have some set Hiper size values in mind for that work (but I think they are using about 5GB which seems way to large for a zSeries, or am I wrong?). Also, does this depend on 3390 emulated volume sizes? We currently are mostly mod -3 and mod -9 due to a DR contract that will eventually go away so we may explore some small volumes for spool, CDS files etc and other reserve sensitive files and some larger volumes for the larger databases and such. Any opinions you might have on this would also be welcome. You can respond on or off list, whichever you would prefer (if responding off list, I am not sure which email address my post will come from so please use [EMAIL PROTECTED] for the reply address) I realize I asked for opinions and although my question is regarding Hiper (sp) size I would be interested in any opinions/advice I can get regarding migrating from a 2105-800 to a DMX4. Thank you for your time and assistance, Greg -- 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
