My freeware (Ian Miller - miller at encompasserve dot org) for the VMS operating system. (NOTE - A better download site for released versions of this software is here )
Some programs for the VMS Operating system written for my own fun and education which may be of use to someone else. (NOTE - development snapshot versions may or may not be newer than the released version and may or may not work). (NOTE - SDA extensions are for OpenVMS Alpha V7.2 and later, OpenVMS I64 V8.2 and later unless otherwise stated. They can be used to look at crash dumps or the currently running system.) MBU - Mailbox Utillity V1.6 mbu016.zip (updated on 06-Mar-2008) development snapshot mbu.zip (updated on 06-Mar-2008) MBU displays detailed information about a mailbox and who is using it, can view messages in a mailbox without reading the message. MBU can create/delete/read/write mailboxes. MBU displays data about a mailbox not easily obtainable via other utilities including information about waiting requests for the mailbox. MBU can display a list of mailboxes matching specified criteria such as mailboxes containing messages which have no channels assigned to them. There are rudementary scripting facilities. Future ideas - improve formatting of displayed messages; improving handling of stream mailboxes; make MBU work on VAX/VMS like it used to [the current version does not build on VAX/VMS]. MBMON - Mailbox Monitor - a program to copy messages as they are written to a mailbox and display and/or record them. MBMON is useful when debugging or testing applications that communicate via VMS mailboxes. V1.0 mbmon010.zip (updated on 06-Mar-2008) development snapshot mbmon.zip (updated on 06-Mar-2008) PWAIT$SDA - Process Wait SDA extension - aids investigation of what a process is waiting for especially the various RWxxx resource wait states. V0.D pwait_sda00d.zip (updated on 06-Mar-2008) V1.0 pwait_sda010.zip (updated on 06-Mar-2008) development snapshot pwait.zip (updated on 06-Mar-2008) Future ideas - reformat displays to be less messy; improve on I64 VMS by getting register values as is done on Alpha; Better analsys of of the many causes of RWAST; GBLSEC$SDA - a SDA extension to look at global sections. Displays various information about the global section including which processes have the global section mapped. V1.2 gblsec_sda012.zip (updated on 06-Mar-2008 ) development snapshot gblsec.zip (updated on 06-Mar-2008 ) Futures: interpret the global section name; given a filename of a installed file then find the global sections; display the ORB. PF$SDA - a SDA extension to find which processes are using a specific page file. It can display number of pages each process has in the the pagefile and their location. Optionally the number of global pages in the pagefile can be counted. V1.1 pf_sda011.zip (updated on 06-Mar-2008 ) development snapshot pf.zip (updated on 06-Mar-2008 ) Futures: Display pagefiles used by a specified process; Calculate pagefile fragmentation LN$SDA - an SDA extension to display logical names. Logical names can be specified by name or by value and optionally using wildcards (normal VMS wildcards * and %). The logical name tables of the currently selected process in SDA and/or shared tables are searched. V1.0 ln_sda010.zip (updated on 06-Mar-2008 ) development snapshot ln.zip (updated on 06-Mar-2008 ) PAC$SDA - an SDA extension to display port allocation class data. PAC data describes [port],[port-allocation-class] correspondences and can be defined at boot time during a conversational boot or defined in SYS$DEVICES.DAT. There is also data discovered by sending inquries down the SCSI buses. If the data discovered by inquries on the SCSI buses does not correspond to the configured PAC data then on the console a message similar to the following is output by code in [CLUSTER]SCCPUVER %SCSI_CPU-W-RETRY, port PKE alloclass n status 94 inconsistency, retry 1/5 This software was created while looking into these messages. It displays the port allocation class data configured and the data collected by OpenVMS from SCSI inquries. V1.0-1 pac_sda010.zip (updated on 18-Aug-2010 ) LISTEN - a set of programs to listen to the LAN and build a list of names and addresses. Looks at DECnet, IP and NetBUEI packets on the LAN and picks out interesting information. Future Ideas: decode more network packets from Windows systems V1.0 listen010.zip development snapshot listen.zip (updated on 06-Mar-2008 ) ESET - a old (1997) program for VAX/VMS which sets various process attributes which where not supported by SET at the time. This program is not of much use on current systems. eset.zip RK - a quickly written program to read single keys including cursor keys for using in DCL procedures. rk.zip (updated on 06-Mar-2008 ) Other ideas for future freeware (no promise that they will ever be created) The following list is various thoughts I have had about software I could write. If you have opinions on these or the programs I have already written then email me. A SDA extension to display all information about a mailbox including the various queues (MBU SHOW MAILBOX does this already but only for the current system) and parhaps which processes have a channel assigned to the mailbox. formatted file dump with allowing user to define the record strucure (use common code for displaying user defined records for this and other programs). There are already progams that do this e.g dix and there are languages for descibing data structures such as SDL (although this does not say how a data field should be displayed). Software which syncronises the time across a cluster which uses the cluster communication channel for communications (ICC$x system services) not DECnet, TCP/IP etc and therefore independant of these. One way would be the equivilent of doing SYSMAN SET ENV CLUSTER;SET CONFIG TIME but this sets the time on all nodes to be the same as this node. Parhaps some way of agreeing a best time and converging to it. It is generally a good idea for all nodes to have the same time. Cluster wide SHOW DEV/FILES (useful but you can now use SYSMAN to do SHOW DEV/FILES cluster wide). Something to look at I/O requests queued for a device with someway of only displaying the ones by a specified process. Could be an SDA extension. Where I/O requests are queued varies depending on the device and the type of request. This is when you can see a process has I/O requests outstanding and you want to now why. An issue with this is how useful it would be on a running system where I/O requests start and end rapidly. It may be useful for the case where a device has stopped responding and is in a mount-verify state. There may also be uses in investigating the system I/O activity when a system crashed. A better search for SDA (ESEARCH$SDA) - parhaps using the Boyer-Moore search algorithm for speed when searching for strings. Is there a need for a faster SEARCH command or pattern matching? -ESEARCH/NPAGDYN is SEARCH @mmg$gl_npagedyn:@MMG$GL_NPAGNEXT -ESEARCH/TYPE=YYY/SUBTYPE=ZZZ - use the type and subtype fields in a standard packet. If YYY or ZZZ start with a letter then lookup in table of types (DYNDEF) like IRP, UCB etc. If start with digit then use as decimal type (should be hex?). Could use a length or minimum length for the specified type. Could exclude packets on known lists? Page last updated on 28-Jan-2011 and accessed 9,167 times since I started counting. 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%SCSI_CPU-W-RETRY, port PKE alloclass n status 94 inconsistency, retry 1/5
This software was created while looking into these messages. It displays the port allocation class data configured and the data collected by OpenVMS from SCSI inquries.
