H06.09 Software Installation and Upgrade Guide

H06.09 Installation, Migration, and Fallback
Considerations
H06.09 Software Installation and Upgrade Guide—544316-002
2-5
OSS Large Files
OSS Large Files
Starting with the H06.06 RVU, OSS files larger than the previous 2 GB limit (large files)
are supported. The OSS file system and utilities are able to handle file sizes up to 1
terabyte.
To implement this capability, the OSS file system and utilities are modified to support
Format 2 files (previously, all files were created as Format 1). All large files are created
as Format 2; small files (less than 2 GB) can be created as either Format 1 or Format
2. Format 1 files are automatically converted to Format 2 when opened using the OSS
64-bit utilities or Enscribe.
The ability to access large files can lead to problems if you install the H06.06 or later
RVU, then need to fall back to an earlier RVU. Format 2 files are not supported in pre-
H06.06 RVUs; if your applications have created new Format 2 files (large or small),
those files cannot be accessed on a pre-H06.06 system. Following are descriptions of
recommended fallback SPRs. For complete details on this issue, see Support Note
S06056A, OSS Files Larger Than 2 GB for H-Series RVUs.
DP2
A DP2 fallback SPR, T9053AQM, is available. This fallback SPR is preinstalled in
H06.05 systems, so for those systems, no action is required. You can install the
fallback SPR on systems running H06.03 or H06.04, as long as all the prerequisites
are met:
•
If you are currently running the H06.03 RVU, consider upgrading to H06.05 before
upgrading to H06.09 so as to facilitate fallback if fallback becomes necessary.
•
If you are currently running the H06.04 RVU, HP strongly recommends that you
install the fallback SPR before migrating to H06.09. If you do not install the fallback
SPR before migrating to H06.09, you must install it during fallback to ensure a
successful fallback.
The installation of T9053AQM requires a system load.
Falling back to H06.03 is not supported.
Once the T9053AQM fallback SPR is installed:
•
Format 2 OSS files smaller than the 2 GB limit are converted to Format 1 when
opened, so that the files remain usable. The file size cannot exceed the Format 1
limit.
•
Format 2 OSS files larger than the 2 GB limit are no longer accessible through the
OSS file system and utilities, and DP2 returns an error for any operation other than
WARNING. If you do not install the DP2 fallback SPR before migrating to H06.09 and a
fallback becomes necessary, you must perform a system load on the prior RVU, and then,
before using any OSS files, you must install and coldload to the DP2 SPR.