I double Glenn here! We currently use the exact SAP/DB2 & DS8K Flashcopy solution he has pointed out and it really works like a charm. We can IPL our DR anytime we want (I often do it to test a z/OS upgrade, for example), with like 2-3h of preparation time*.
* I understand 2-3h of prep. time is not doable in some cases, but it is doable for my client. ------------------------------------------------------------------------------------------------------------------------------- *Lucas Rosalen* Emails: [email protected] / *[email protected] <[email protected]>* LinkedIn: http://br.linkedin.com/in/lrosalen Phone: +55 19 9-8146-7633 2015-04-29 12:56 GMT-03:00 Lizette Koehler <[email protected]>: > Does that apply to all hardware vendors for the DB2 BACKUP/RESTORE or only > the IBM DS8K family? > > Lizette > > > > -----Original Message----- > > From: IBM Mainframe Discussion List [mailto:[email protected]] > > On Behalf Of Glenn Wilcock > > Sent: Wednesday, April 29, 2015 8:06 AM > > To: [email protected] > > Subject: Re: Thoughts on DFSMShsm ABARS in today's environment > > > > Hi Again, > > > > As you can imagine, over the years our L2 folks have been called out to > help > > recover data after many an 'oops'. In many cases, there isn't a backup > for all > > of the data, which has resulted in data loss. Hence, most will concur > that any > > backup is better than no backup. > > > > For the case of backing up Online Systems, investigate what the > applications > > themselves offer. In the case of DB2, DB2 and DFSMS have worked together > > to create a Continuous Data Protection solution (CDP) through the DB2 > > BACKUP SYSTEM / RESTORE SYSTEM utilities. BACKUP SYSTEM creates a > > fuzzy backup that can be made consistent during recovery through Log > > Applies. In order to create a consistent recovery, > > creates/renames/deletes/extended must be quiesced during the backup, > > but data updates are allowed to continue. (Essentially VTOC updates are > > held to ensure that the VTOCs are data consistent). DB2 invokes DFSMShsm > > to create FlashCopy PiT backups (FRBACKUP). During Recovery, the client > > selects the recovery point, which can be 'current', or a prior point in > time. > > DFSMShsm recovers the PiT copy using FlashCopy (if still on disk) or from > > Tape (if the backup copy has rolled off to tape). DB2 then performs a > log > > apply up to the recovery point, creating a data consistent recovery. > Some > > clients also use this process to create Clones. When this CDP solution > is > > combined with Metro Mirror, there is a very high level of protection from > > both physical and logical loss. This solution can also be used for SAP > systems, > > when DB2 is the database. > > > > Glenn Wilcock > > DFSMShsm Architect > > > > ---------------------------------------------------------------------- > 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
