Msg: 5963 *Conference*
08-16-95 14:09:00
From: RON WIESEN
To : COMET _
Subj: REPLY TO MSG #5953 (UNDELETE -- COLD START RECOVERY)
Use 256K RAMPACs here. They may be available in larger capacity, I don't know, but considering backup to disk the 256K RAMPAC mates with the 202K capacity of the TDD2. Program NPL.BA in Downloads is good for direct RAMPAC-to-PDD2 transfers (not memory buffered) but note my warnings about its use for ASCII (.DO) files and not to mix NPL backup diskettes with other diskettes. Use an ExtRAM and RAMPAC together without conflict: ExtRAM in Option ROM socket; RAMPAC on Bus connector of M102. Don't know about an XR4, perhaps there is a conflict with RAMPAC/Bus connector but I would doubt it. If you end up with a RAMPAC, you may want to "borrow some code" for an OS extension that gives one-key invocation from the main Menu for: 1. Disk file transfer 2. RAMPAC file transfer 3. In memory file compaction/grouping. Since we discussed cold-start recovery, I have located the OS extension code in that area which appears to survive cold-starts. Got a cold-start yesterday while out of town on business (hate it when that happens). With my ROM2/Cleuseau, I found the start@ of 1st ASCII file and the end@ of the last ASCII file then used BASIC direct statement to save it as one file. I didn't care about recovering the BASIC and M/L files. Also I knew the ASCII files consumed less than half the available memory at time of cold-start so I knew the following would work. OPEN"ALL"FOROUTPUTAS#1:FORA=strTOend:D$=PEEK(A):IFASC(D$)=26THENNEXT:ELSEPR INT#1,D;:NEXT My client was present at the cold-start (thought his data was gone forever) and was much relieved to see it recovered in a few seconds. Funny you and I were discussing cold-start recovery recently and one occurred yesterday!