General User Release Notes
3.18 Documentation Corrections
If required to boot an Integrity servers system from a disk created through an
image restore operation, you need to follow one of the method described below to
update the GUID signature of the disk:
• Use the following procedure to add or validate the boot options:
$ @SYS$MANAGER:BOOT_OPTIONS.COM
• Use the following command to update the boot block:
$ SET BOOTBLOCK /INTEGRITY <destination_disk>:[VMS$COMMON.SYS$LDR]SYS$EFI.SYS
The following corrections pertain to the HP OpenVMS System Manager’s Manual,
Volume 2: Tuning, Monitoring, and Complex Systems.
3.18.5.7 Mounting a Volume With Caching Disabled
The following paragraphs should be appended to Section 4.4.
To disable XFC, enter the following command:
MOUNT/CACHE=NODATA
This command disables only data cache (XFC) while metadata cache (XQP) is
enabled.
This example mounts a database volume labeled ORACLE_VOL1 with data cache
(XFC) disabled:
$ MOUNT DUA100: ORACLE_VOL1 /CACHE = NODATA /SYSTEM
3.18.5.8 System-Wide Statistics
In section 4.5.6.1, the following changes should be made to the foot note:
[7] Reads bypassing cache — The total number of read I/Os since system startup
that were seen by the cache but were not cached, for example, because they were
too big, or they were for volumes mounted /NOCACHE or /CACHE=NODATA, or
they specified one of the following QIO modifiers: IO$M_DATACHECK, IO$M_
INHRETRY, or IO$M_NOVCACHE.
[17] Write bypassing cache — The total number of write I/Os since system startup
that were seen by the cache but were not cached, for example, because they were
too big, or they were for volumes mounted /NOCACHE or/CACHE=NODATA, or
they specified one of the following QIO modifiers: IO$M_DATACHECK, IO$M_
ERASE, IO$M_INHRETRY, or IO$M_NOVCACHE.
3.18.5.9 Disabling Caching for a Volume
In Chapter 4, a new section "Disabling Caching for a Volume" has to be added
before Section 4.5.4, "Disabling Caching for a File".
The following text should be added to the "Disabling Caching for a Volume":
From OpenVMS Version 8.4 onwards, XFC can be dynamically enabled or
disabled or cleared for a volume using the DCL "SET VOLUME" command.
In the earlier versions, XFC caching attributes of the volume were specified
when the volume was mounted. Once the volume is mounted there is no way to
dynamically modify the XFC caching attributes. Therefore, to modify the XFC
caching attributes, the volume had to be dismounted and mounted again with the
appropriate XFC caching attributes.
3–16 General User Release Notes
