Technical data

OpenVMS Associated Products Release Notes
3.7 DECram Version Support
from the S1 address into the S2 address space. This change allows for the
creation and addressing of devices larger than 2 gigabytes (GBs).
Any Alpha-based system can be easily upgraded to DECram Version 3.0. With
Version 3.0 you can use the new DECRAM command interface or continue
using the same familiar commands from SYSMAN for creating, initializing, and
mounting DECram disks.
DECRAM Version 3.0 disks are created and formatted by the DECRAM> prompt
and are initialized using the DCL INITIALIZE (INIT) command. If you are
configuring DECram Version 3.0 or later on OpenVMS Alpha (Version 7.2-1H1
and later), you can generate a DECram startup procedure to set up the disk and
copy any required files to it. Usually, this procedure is called from the system
startup procedure SYS$MANAGER:SYSTARTUP_VMS.COM.
It is important to remember to check for disk errors after issuing any DECRAM
command. Not all errors are returned to the user interface. Errors specific to
a device are sent to the system errorlog. Type SHOW DEVICE MD at the DCL
prompt to see if any device errors were generated as a result of a DECram
command. You will need to use an errorlog analyzer tool to recover the error.
Errors are logged in ASCII file format so you could search for errors with an
MD-E-FAILURE prefix in the SYS$SYSROOT:[SYSERR]ERRLOG.SYS file.
On OpenVMS Alpha systems (Version 7.2-1H1 or later) running DECram Version
3.0, the only requirements are that a DECram disk must have 516 bytes of free
page list per block (512 bytes) of disk space allocated.
If you plan to use freeze writes with OpenVMS Volume Shadowing for OpenVMS,
be sure to verify that the version of volume shadowing that you are using
supports this feature. If it does not, then be aware that if the physical disk goes
away, you will be writing to a volatile disk.
DECram Version 3.0 and supporting documentation are included in the OpenVMS
Version 7.3 kit in the following directory:
[.DECRAM_030]
DECram documentation is also included on the OpenVMS Documentation
CD–ROM.
For the next major release of OpenVMS, DECram Version 3.0 will be the only
version supported on OpenVMS Alpha. We will continue to support DECram
Version 2.3 on OpenVMS VAX.
For more information about the contents of the DECram directory, refer to
the Guide to OpenVMS Version 7.3 CD–ROMs. For information about the new
features of DECram V3.0, refer to the OpenVMS Version 7.3 New Features and
Documentation Overview.
3.8 Lightweight Directory Access Protocol (LDAP) API
The following sections contain release notes pertaining to the LDAP API.
3.8.1 The Routine ldap_get_option Returns Error -1 When ld Is NULL
V7.3
Using a value of NULL for the ld parameter in a call to ldap_get_options( )
results in an error of -1 being returned, rather than the routine returning a set of
global default data.
3–6 OpenVMS Associated Products Release Notes