SAG make it quite clear that there is no problem recovering an Adabas database using these technologies, as long as the user is aware of the architecture of the Adabas database and sets everything up correctly.
Quoting from a SAG Technical Tip: "As long as the mirrored data is a consistent real time shadow of primary data there is no problem to: 1) Start an Adabas nucleus using mirrored ASSO, DATA, and WORK after a disk crash on primary - Adabas will perform the autorestart. 2) Repair primary data after the hardware is fixed by copying the mirrored data (completely: ASSO, DATA and WORK)." -----Original Message----- From: Ron and Jenny Hawkins That's an interesting position for SAG to take. That would also mean that ADABAS does not support restart after a power outage, MVS crash, or Database crash. A Database that does not support Disk Based Remote Copy or Disk based Copies (Shadowimage, FlashCopy, Timefinder) or even a system crash is quite a surprise. Methinks it is a Database to avoid... Ron > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On > Behalf Of Michael Pratt > Sent: Friday, 26 August 2005 11:07 AM > To: [email protected] > Subject: Re: ADABAS and HDS TrueCopy > > Hi Sarel, > > How are you maintaining ADABAS database consistency using SRDF? The > reason I ask is that according to SAG recovery from a successful "RESTART" > is not a recommended recovery strategy - in fact it is not a supported > method of database recovery in the primary environment. What this this > means of course is that restart based on replicated data (SRDF or PPRC) is > also not supported? > > I guess my question is are you taking special steps to ensure consistency, > or are you simply taking the position that it works, that the liklihood of > index/data inconsistency is highly unlikely and therefore an acceptable > risk? > > Mike. > ---------------------------------------------------------------------- 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
