AIX Version 4.3 Differences Guide

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• Debugging purposes. These trace points are only enabled when the driver is compiled with -DDEBUG turned on, and therefore, the driver can contain as many of these trace points as desired. The main goals for having trace points in a CDLI device driver are to be able to monitor drivers for errors and to track packets as they move through the driver. To this end, it is important that trace points be placed at the beginning and end of each main routine that does processing on packets. Also, it is important to try and trace the flow of buffers (for example, mbufs) as they flow through the system. There should also be trace points placed at each point where an error could occur. The device driver also has trace points to support the netpmon program (component cmdperft). There are generally five trace points: WQUE An output packet has been queued for transmission. WEND The output of a packet is complete. RDAT An input packet has been received by the device driver. RNOT An input packet has been given to the demuxer. REND The demuxer has returned. All CDLI drivers must register for a trace hook IDs. NOTE: CDLI device drivers may register for more than one trace hook ID. In the case of multiple trace hook IDs, one could be used for transmit, one for receive, and another for errors. 7.13.3 Error Logging The device driver will do error logging when the following situations occur: • An error on PIO operations • A hardware failure on the device • An error on DMA operations • Network errors • Other device specific errors 7.14 Open Network Computing (ONC+) The ONC+ technology has been licensed from SunSoft and is being included within AIX to meet customer requirements. This technology contains many different functional components; the main ones being: NFS Version 3, NIS+, CacheFS, TIRPC, and AutoFS. Not all of these components are included with this release of AIX. NFS V3 was introduced in AIX Version 4.2.1. CacheFS was introduced in AIX Version 4.3.0, and AutoFS was included in AIX 4.3.1. 7.14.1 CacheFS CacheFS is a local disk cache mechanism for NFS clients. It provides the ability for an NFS client to cache file system data on its local disk, thereby avoiding use of the network and NFS server when the data is accessed and is not in physical memory. This improves NFS server performance and scalability by reducing 182 AIX Version 4.3 Differences Guide
server and network load. Designed as a layered file system, CacheFS provides the ability to cache one file system on another. In an NFS environment, CacheFS increases the clients per server ratio, reduces server and network loads, and improves performance for clients particularly on slow links. CacheFS is contained in the bos.net.cachefs fileset, which is not automatically installed when installing AIX. 7.14.1.1 How CacheFS Works After creating a CacheFS file system on a client system, the system administrator specifies which file systems are to be mounted in the cache. When a user on that client attempts to access files that are part of the back file system, those files are placed in the cache. Note that the cache does not get filled until a user requests access to a file or files. Therefore, the initial request to access a file will be at normal NFS speeds, but subsequent accesses to the same file will be at local JFS file system speeds. Refer to Figure 43 to see the relationship of the components in CacheFS. Figure 43. CacheFS Components 7.14.1.2 Configuring CacheFS There are two steps involved in setting up a cached file system: 1. Create the local cache. 2. Specify and mount the file systems to cached. Networking Enhancements 183
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AIX Version 4.3 Differences Guide R
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Take Note! Before using this inform
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2.12.5 Boot Logical Volume Scaling
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Chapter 6. System Management and Ut
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7.1.8 Commands and Applications Ena
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8.2.23.1 Input Method Values . . .
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10.6 National Language Enhancements
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xiv AIX Version 4.3 Differences Gui
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51. Documentation Search Service. .
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51. List of Locales for Euro-Specif
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The authors of the First Edition ar
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xxii AIX Version 4.3 Differences Gu
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The RS/6000 Enterprise Server Model
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• 1 MB of Level 2 (L2) cache. •
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The Model 260 is designed for custo
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Table 3 is a comparison of various
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1.6 Gigabit Fibre Channel Adapter A
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12 AIX Version 4.3 Differences Guid
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work as on previous releases of AIX
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For AIX systems using AIX Version 3
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destructive overlay can be caught w
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The maximum number of file descript
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2.12.1.2 Network Memory Buffer Pool
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2.12.3 Larger Pipe Buffer Pool The
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The nice value has a much greater i
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Table 9. Old Priority Algorithm, sc
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where it can be directly manipulate
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one trillion terabytes. Other 64-bi
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ecently used mappings of segment nu
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• Executable data and BSS Followi
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Figure 6. Interfacing 64-Bit Proces
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that can be larger than 2 32 for la
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The addr struct is a library-side s
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It is also possible to have a situa
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A single remap struct fits into a s
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Depending on the execution environm
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3.2.4.2 Parameter Passing Examples
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On AIX 4.3, the same algorithm is u
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All of the following services are e
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UNIX98 interface will add very litt
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cases, the user is free to override
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These ANSI types are defined throug
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The following libraries and APIs ar
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symbols exported with svc3264 are a
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In general, no command user interfa
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mlockall() mq_getattr() mq_open() m
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from the address space. Termination
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4.3.2 The M:N Model In the M:N mode
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sharing the VPs. When the mutex loc
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4.4 Pthreads Suspend and Resume (4.
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4.6.1 Opening Files for Direct I/O
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performance of network memory buffe
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The send_file call only supports th
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• The volume group's disks must b
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The relationship of factor -t, PP n
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The LVM in AIX 4.3.2 supports both
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MAX LVs: 256 FREE PPs: 81 (324 mega
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extended to 511 logical volumes and
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Note Although the chlvcopy command
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Figure 11. Default SMIT Menu SMIT p
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• NIM Install Manager Figure 13 s
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interface. Web-Based System Manager
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configuration change tasks in which
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Find Close Exit Opens a search dial
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Tree Changes the presentation of ic
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6.2.5.11 Status Line The status lin
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Note: The Web-Based System Manager
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A multiple selection is enabled for
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Figure 23. Example of Container Win
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6.4.3 Registered Applications This
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6.5 Daylight Savings Time Before AI
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keep the data and index files synch
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At the end of the install a volume
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cloned alt_inst_rootvg. The default
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6.8.4 Alternate Disk Installation E
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hdisk0 00006091aef8b687 rootvg hdis
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Support in SMIT was updated to allo
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Page 160 and 161: exhaustively consumed. When a NIM o
Page 162 and 163: In summary, Table 25 shows the diff
Page 164 and 165: 6.14 Error Message Templates (4.3.2
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Page 176 and 177: Error messages are identified by ha
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Page 242 and 243: • Snap-back scrolling, a feature
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232 AIX Version 4.3 Differences Gui
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The browser must be a forms-capable
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Figure 50. Documentation Search Ser
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If you have not run Netscape previo
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Previously, the man command had to
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Single-Byte Character Set Support (
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abandoning its standards-based inte
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• __mblen_std() - For all other c
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Locale method Unicode locales ISO88
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Unicode Locale Chinese (Traditional
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10.5 Euro Symbol Support for AIX (4
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Any UTF-8 based locale installed on
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Encoding UTF-8 multi-byte: Byte S
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Keyword p_sign_posn n_sign_posn Des
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Table 54 summarizes the AIX keyboar
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10.5.4 Input Methods for the Euro S
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A selection menu can be closed by p
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Figure 55. UNIVERSAL Input Method:
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Table 56 summarizes the new iconv c
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Converter Type Fileset UCS-2_IBM-11
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• X11.loc.XX_XX.Dt.rte • X11.lo
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Figure 56. German UTF-8: Add Additi
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SMIT uses the chlang command to set
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os.loc.iso.de_DE bos.loc.iso.en_US
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• Thai Cultural Conventions (Unic
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In Japan, most of operating systems
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X11.base.rte This fileset ships the
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Documentation Search Service does n
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Figure 59. Searching Japanese Docum
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Figure 61. A Japanese Book 10.7.3.2
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Figure 63. Input Chinese Character
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Figure 65. A Chinese Book for Insta
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Client 3 capabilities. In this case
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Figure 67. Stand-Alone LDAP Directo
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provides encryption of data and tra
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Changes to schema definitions previ
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environments may vary significantly
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• AIX Version 4 Getting Started,
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• http://www.lexmark.com • http
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How Customers Can Get ITSO Redbooks
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LDIF LFT LID LP LPI LPP LPR/LPD LDA
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authentication 300 authentication h
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E ed command 141 EDTMPDIR 141 effec
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kernel changes. crash command 17 de
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-command security 166 RDB glue 299
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web based systems management 95 arc
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SG24-2014-01 Printed in the U.S.A.
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AIX Version 4.3 Differences Guide

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