HP-UX Compressed Dump Release Notes Version A.01.01 Edition 1 HP-UX Servers and Workstations Manufacturing Part Number: 5187-2760 June 2003 U.S.A. © Copyright 2003 Hewlett-Packard Development Company LP. All rights reserved.
Legal Notices The information in this document is subject to change without notice. Hewlett-Packard makes no warranty of any kind with regard to this manual, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard shall not be held liable for errors contained herein or direct, indirect, special, incidental or consequential damages in connection with the furnishing, performance, or use of this material. Warranty.
Publication History The manual publication date and part number indicate its current edition. The publication date and part number will change when a new edition is released. To ensure that you receive the new editions, you should subscribe to the appropriate product support service. See your HP sales representative for details. • First Edition: June 2003, 5187-2760, HP-UX 11i version 1 (B.11.11) CD-ROM (Software Pack June 2003) and Web (http://docs.hp.
Conventions We use the following typographical conventions. audit (5) An HP-UX manpage. audit is the name and 5 is the section in the HP-UX Reference. On the web and on the Instant Information CD, it may be a hot link to the manpage itself. From the HP-UX command line, you can enter “man audit” or “man 5 audit” to view the manpage. See man (1). Book Title The title of a book. On the web and on the Instant Information CD, it may be a hot link to the book itself. KeyCap The name of a keyboard key.
HP-UX Compressed Dump Release Notes Announcement 1 HP-UX Compressed Dump Release Notes The information in this document applies to the release of HP Compressed Dump software product HP-UX CDUMP11i A.01.01. Announcement The HP-UX Compressed Dump, version A.01.01 software speeds up the memory dump for HP-UX in the event of a system crash. With this product, the dumps are taken faster and thus the system availability is improved.
HP-UX Compressed Dump Release Notes What’s in This Version What’s in This Version This section lists and describes the features that HP-UX Compressed Dump A.01.01 supports. HP-UX Compressed Dump A.01.01 offers the following features: • increased dump speed by at least a factor of 3 for selective dumps excluding UNUSED pages NOTE On a machine that took X hrs. of time to dump, with the option of compressed dump, the dump time should reduce to X/3 hrs.
HP-UX Compressed Dump Release Notes What’s in This Version Total pages on system: Total pages included in dump: Dump compressed: DEVICE -----------31:0x03a000 4194304 328120 ON OFFSET(kB) ---------310112 SIZE (kB) ---------4194304 ---------4194304 LOGICAL VOL. -----------64:0x000002 NAME ----------------/dev/vg00/lvol2 Turning compression option ON using crashconf, gives a hint to the system to use compression while dumping.
HP-UX Compressed Dump Release Notes What’s in This Version The compression option is turned ON by default. The init script option for crashconf sets the compression option every time the system boots up. Setting CRASHCONF_COMPRESS to 1 in /etc/rc.config.d/crashconf turns compressed dump ON whenever the system boots up. Setting it to 0 turns compressed dump OFF. Not setting it, will not change the default compression hint in the kernel, which is to dump compressed.
HP-UX Compressed Dump Release Notes What’s in This Version The Compressed Dump product uses a new crash dump format, PARDIR, for saving the dumps. Existing versions of kernel dump debug tools do not support PARDIR format dumps. To use with existing dump debug tools, the dump needs to be converted to any of the older crash dump formats. The following command converts crash.0 which is in PARDIR format into CRASHDIR format in crash.1. The converted dump will take up considerably more disk space.
HP-UX Compressed Dump Release Notes Known Problems Known Problems This section lists known problems and workarounds in this release of HP-UX Compressed Dump product. For the most current information go to the IT Resource web site at the following URL: http://itrc.hp.com/ Uncompressed Dumps on Machines with Virtual Partitions On a machine with virtual partitions (vPars) running, the dump taken by issuing a TOC from GSP may not be compressed even if there are five or more CPUs.
HP-UX Compressed Dump Release Notes System Requirements and Installation Instructions System Requirements and Installation Instructions This section provides information about installation and system requirements. Supported Hardware and Software HP-UX Compressed Dump A.01.01 product has the following requirements: • Hardware: 64-bit PA-RISC HP-UX servers • Operating system: HP-UX 11i, version 1.0 • Disk space: ~2.0 Mb • Memory: ~3.0 Mb Installing from Software Pack CDROM 1. Log in as root. 2.
HP-UX Compressed Dump Release Notes System Requirements and Installation Instructions HP-UX Compressed Dump product includes the following components: • Compressed Dump kernel library • enhancement kernel patches to support the Compressed Dump product • updated man pages for crashconf, crashutil, savecrash and libcrash • enhanced crashconf, crashutil, savecrash and libcrash Installing from Software Depot 1. Go to the following web site: http://software.hp.com 2. Select Enhancement Releases. 3.
