RAID Array 450 HSZ50 HSOF Software Version 5.7 for Compaq Tru64 UNIX Release Notes

RAID Array 450 HSZ50 HSOF Software Version 5.7 for Compaq Tru64 UNIX
Page 14 AA–R1ZZE − TE
• In a rare occurrence the HSZ50 controller may not be able to use the
HSUTIL program to perform a “code load” firmware upgrade to
TZ87/88/89 tape drives or any associated Automated Tape Library. In
such a case the HSUTIL program refuses to perform the upgrade because
it incorrectly determines that there is a tape present in the target tape drive
when there is none. Please see Section 7.1 HSUTIL Program Failure
During a Code Load Firmware Upgrade for a description of this issue and
directions for resolution.
• A rare occurrence of a drive reporting “Not Ready/Becoming Ready”
where the drive was unable to recover, triggering a controller reset
4.0 Features from Previous Releases
Sections 4.1 through 4.5 briefly describe changes that were introduced in the
code version previous to HSOF V5.7 Software release that are not covered in
other documentation
• Host-Level I/O Failure Problem Resolution
• Support for TZ887
• Action for repeated Reboots Problem Resolution
• Support for Large Drive Formatting
• Support for up to Fourteen 18GB Drives
4.1 Host-Level I/O Failure Problem Resolution
The V5.4 release addressed the problem in which host-level I/O failures occur
due to a storageset unit not-ready condition. This condition is caused by disk
devices becoming spontaneously not ready or not responding to controller read
or write commands.
4.2 Support for TZ887
A few sites reported that the tape and loader unit would become misconfigured
when a TZ887 was added using the CLI ADD command. This is corrected in
HSOF Version 5.4. See Table 2-2, “Supported Tape Drives,” in the “Device
Support” section for information including capacity, minimum microcode
version, and minimum hardware version.