HP 3000 Manuals HP 3000 Manuals
AutoRestart/XL Enhancements by Alice Farrelly and Jim Miller Commercial Systems Division The AutoRestart/XL product was first introduced with XL Release 2.1. This article discusses three enhancements made to AutoRestart/XL in this release of MPE/iX. On the initial release of AutoRestart/XL the pre-allocated dump file(s) and the group DISKDUMP.TELESUP were restricted to a non-system volume set with a name of DISKDUMP_VOLUME_SET. This restriction is now lifted. The pre-allocated dump file and the group DISKDUMP.TELESUP can be created on any volume set. You are advised not to create the dump file on the system volume set because of problems with flushing the dump file information out to disk. It is best that a non-system volume set be used to hold the dump files and the group DISKDUMP.TELESUP. The BLDDUMP utility will warn you accordingly if you attempt to create a dump file on the system volume set, but it will not stop you from doing so. BLDDUMP will not allow a dump file to be created on a mirrored volume set. The compression algorithm within the Dump-to-Disk function of AutoRestart/XL has been changed. This change reduces the amount of disk space needed for a dump by an average 50 percent. The program that estimates the amount of disk space that a dump will require, DTODSIZ, has been modified to reduce the disk space estimation. The reduction is a conservative 50 percent because it includes additional factors that were not considered before and the new LZ data compression. For more information regarding the algorithm change in Dump-to-Disk, refer to the article "DUMP/DAT Enhancements" in this Communicator. A new AUTOBOOT toggle has been added to the BLDDUMP utility. The AUTOBOOT flag is a flag in Stable Storage that tells the system whether to look for an AUTOBOOT file or not. The AUTOBOOT flag may now be turned on, turned off, or checked through the BLDDUMP utility as follows: (#2) blddump > AUTOBOOT on Autoboot has been enabled. (#3) blddump > AUTOBOOT on Autoboot is already enabled. (#4) blddump > AUTOBOOT off Autoboot has been disabled. (#5) blddump > AUTOBOOT off Autoboot is already disabled. (#6) blddump > AUTOBOOT status Autoboot is off. For more details on these enhancements to AutoRestart/XL, refer to the AutoRestart/XL User's Guide (36375-90001).