SCO OpenServer 6 Tech Overview

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SCO OpenServer 6 Tech Overview
SCO OpenServer 6 - City to City Tour 2005
Roberto Zini - Strhold Evolution Division
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SCO OpenServer Release 6 Overview

• Code-named Legend
• A multi-year, multi-million dollar development
  effort to produce one of the most significant
  upgrades to OpenServer in the past decade
• Integrated UNIX System V kernel technology
• Application binary compatibility for OpenServer
  5.x OpenServer 6 and UnixWare 7.1.4

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SCO OpenServer 6 Overview

• Contains the hardenedUNIX System V kernel
• Single certification for both OpenServer 6.x and
  UnixWare 7.1.x
• New platform, storage, and new driver
  certifications
• Runs thousands of applications written for UNIX,
  Java, PostgreSQL, mySQL, KDE and Web Services

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Customer Benefits of OpenServer 6

• New SVR5 Kernel
• SCO OpenServer Release 6 brings to users a
  powerful, new and modern operating system with
  large file support, filesystem improvements and
  kernel-level threading for greater application
  support
• Get work done faster
• Significantly faster and increased performance
• Multi processor support increased from 4 to 16
  processors
• Increased Memory Support up to 64 GB
• Dynamic loadable drivers
• Work with thousands of UNIX applications, as well
  as
• Thousands of applications written for MySQL,
  PostgreSQL, Apache, Tomcat, and the latest
  version of Java
• SCOs Web Services Substrate technologies
  integrated to make green screen apps available
  in a Web environment
• Work in a secure environment
• Includes latest security enhancements, including
  SSH, OpenSSL, IP Filter, IPsec, Encrypted File
  System

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What can you expect

• The rock-solid stability, excellent reliability
  you're used to with previous OpenServer5 releases
• OpenServer 5.0.7 applications as well as UnixWare
  applications will run on OpenServer 6 without
  specific portings
• OpenServer 6 will provide much broader hardware
  support
• OpenServer 6 continues our focus on Security,
  Reliability and Value

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SCO OpenServer 6 System Requirements
Hardware Minimum Recommended Maximum
CPU Pentium Pentium P4 32 CPUs
Memory 128Mb 256Mb 16Gb/64Gb
Disk Space 1Gb 4Gb HBA Dependent
HBA IDE SCSI or SATA 32
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SCO OpenServer 6 Features
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SCO OpenServer 6 new Features

• Features new to OpenServer 6 1
• New SVR5 Kernel that delivers 1
• Advanced fine grained locking
• excellent scaling to 16 CPUs supports 32
  (OSR5074)
• Support for up to 16Gb General Purpose Memory
  (OSR54Gb)
• Support via PSE for up to 64Gb using shm/dshm
• Large File Support up to 1Tb (OSR507 2Gb)
• Improved Disk I/O Performance
• Improved Network Stack Performance
• Improved SMP and Load Balancing
• Kernel Threads
• Dynamically Loadable Modules
• Hyperthreading

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SCO OpenServer 6 new Features

• Features new to OpenServer 6 2
• New SVR5 Kernel that delivers 2
• Dynamic Add Memory Support
• Hot Plug CPU
• Hot Plug PCIx
• Veritas Journalling Filesystem
• IPsec and VPN
• MPIO
• NIC Failover
• Automatic Tuning at boot time
• SAN Support (MSA1000)

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SCO OpenServer 6 new Features

• Features new to OpenServer 6 3
• New SVR5 Kernel that delivers 3
• Fiberchannel HBA Support (Qlogic qlc2300 HBA)
• Prism II Wireless Nic Support (pcpms driver)
• Centrino Wireless NIC Support
• Improved AIO (not compatible with OpenServer 5
  AIO)
• AC97 support for i845 chipset for applications
  that do not expect opensound driver.
• USB Printing support
• automatic disk/tapes recognition (no need for
  mkdev hd)

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SCO OpenServer 6 new Features

• Features new to OpenServer 6 4
• SCOAdmin FTP Manager
• SCOAdmin Hot Plug Manager
• SCOAdmin Printer Manager can invoke CUPS Admin
• Network Install/Media Less Install (Not in Beta)
• KDE Desktop Release 3
• X.org X11R6 X Server
• Greater device support
• Improved performance

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SCO OpenServer 6 new Features

• Features new to OpenServer 6 5
• Emergency Recovery CD/DVD
• no floppies but who uses them nowadays ?
• Boot Splash Screen replaces Hardware Listing
• DocView support the Print Book Option in
  Postscript and PDF format
• DocView content changed from Book to Topic format
• Extended Shells (bash, zsh and tcsh)
• foomatic, ghostscript and hpijs
• lsof, vim and xpdf

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SCO OpenServer 6 updated Features

• Updated Features in OpenServer 6 1
• Updated Web Services Components
• Perl 5.8.5
• Apache 1.3.33 (docview) with
• mod_perl 1.29
• mod_ssl 2.8.22
• Mozilla 1.7.8
• Tomcat 4.1.31
• Squid 2.5Stable7

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SCO OpenServer 6 updated Features

• Updated Features in OpenServer 6 2
• Updated Networking Components
• Samba 3.0.13
• NFS v3
• Sendmail 8.13.x (but use whatever you want !)
• OpenSSH OpenSSL
• Updated Database Components
• Postgresql 7.4 (Version 8 available soon after
  FCS)
• MySQL 4.1.10
• CDRecord DVD Pro v 2.01.01a01

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SCO OpenServer 6 updated Features

• Major Kernel Difference 1
• Dynamically loadable modules
• Allows loading of drivers without a kernel relink
  and reboot
• modadmin s to list loaded modules
• modadmin l ltmod_namegt to load a module
• Modules held in
• /etc/conf/mod.d
• To make a module static
• Add static to /etc/conf/sdevice.d/ltmod_namegt
• Relink the kernel
• Modules can be removed from the loaded set by the
  kernel to save resources (eg, RAM)

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SCO OpenServer 6 updated Features

• Major Kernel Difference 2
• Kernel Relink
• Linking is deferred by default until reboot
• Kernel Autotuning
• Kernel tunables are set based on amount of memory
  detected at boot
• See Autotune(4) for more details
• All UW and OSR5 Device Names provided
• OSR5 takes precedence if there is a clash

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SCO OpenServer 6 updated Features

• Major Filesystem Differences 1
• Support for following filesystems
• VXFS
• HTFS (no journalling)
• EAFS (boot filesystem)
• AFS and S51k
• dosfs supporting DOS, VFAT, FAT 12, FAT16,
  FAT32(New)
• cdfs supporting JOILET(New), Rockridge, ISO9660
  and High Sierra
• Raw Slice/Division
• Memfs (Improved)
• NFS
• Xenix and DTFS filesystem types not supported

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SCO OpenServer 6 updated Features

• Major Filesystem Differences 2
• VXFS Filesystem Supports
• gt 64k inodes
• File size up to 1Tb
• Encrypted filesystems supported using marry(ADM)
• Support for up to 15 divisions/slices per
  partition
• /stand is mounted read/write
• fdisk(ADM) now supports writing of Masterboot

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SCO OpenServer 6 updated Features

• Major Filesystem Differences 3
• both SCSI IDE follows the very same naming
  scheme
• /dev/rdsk/cbtds
• /dev/rdsk/cbtdp
• where
• is a hex number (0-F)
• c is the SCSI/IDE controller number of the
  device (starting from 0)
• b is the HBA bus number (SCSI) - always 0 for
  IDE devices
• t is the SCSI ID number - for IDE, 0 master, 1
  slave
• d is the SCSI LUN - always 0 for IDE
• s is the slice number
• p is the partition number, where p0 means the
  whole disk

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SCO OpenServer 6 updated Features

• Steps to create an Encrypted filesystem 1
• Create a regular file with appropriate
  permissions
• touch ltregfilegt
• Create a mount point with the correct permissions
• mkdir ltmount_pointgt
• Create the block special device using marry(ADM)
• cryptfsmarry a b blksz c passphrase
  regfile
• Note 5 of the blksz blocks (512 bytes) are used
  for encryption information

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SCO OpenServer 6 updated Features

• Steps to create an Encrypted filesystem 2
• Make a filesystem on the marry device using
• mkfs -f vxfs cryptfs blksz-5
• Mount the filesystem on the mountpoint using
• mount cryptfs ltmount_pointgt

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SCO OpenServer 6 updated Features

• Examples of accelerated networking NFS v3 1
• Version 2 clients can access only the lowest 2GB
  of a file (signed 32 bit offset).
• Version 3 clients support larger files (up to 64
  bit offsets). Maximum file size depends on the
  NFS server's local file systems.
• NFS Version 2 limits the maximum size of an
  on-the-wire NFS read or write operation to 8KB
  (8192 bytes).
• NFS Version 3 over UDP theoretically supports up
  to 56KB (not to mention you can have NFS over
  TCP with version 3)

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SCO OpenServer 6 updated Features

• Examples of accelerated networking NFS v3 2
• NFS Version 2 requires that a server must save
  all the data in a write operation to disk before
  it replies to a client that the write operation
  has completed.
• This can be expensive because it breaks write
  requests into small chunks (8KB or less) that
  must each be written to disk before the next
  chunk can be written.
• Disks work best when they can write large amounts
  of data all at once.

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SCO OpenServer 6 updated Features

• Examples of accelerated networking NFS v3 3
• NFS Version 3 introduces the concept of "safe
  asynchronous writes."
• A Version 3 client can specify that the server is
  allowed to reply before it has saved the
  requested data to disk, permitting the server to
  gather small NFS write operations into a single
  efficient disk write operation.
• A Version 3 client can also specify that the data
  must be written to disk before the server
  replies, just like Version 2 does

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SCO OpenServer 6 updated Features

• Examples of accelerated networking NFS v3 4
• "Seeing is believing" test 1
• NFS writing from a client box to a shared folder
  on SCO OS 5.0.7 and 6.0.0 of a 100MB archive on a
  PIII-700Mhz, 128MB, Intel Pro 10/100 network card
  using a crossed network cable

SCO OS 5.0.7 SCO OS 6.0.0 NFS 20.52 seconds
(1) 8.78 seconds (3) 23.94 seconds (2)
(1) NFS writes completely Asynch'd (2) NFS
writes mostly Asynch'd (kernel hack) (3) NFS v3
over TCP/IP (default configuration)
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SCO OpenServer 6 updated Features

• Examples of accelerated I/O VxFS filesystem 1
• VxFS uses the intent logging feature
• before committing an I/O request to disk, the
  filesystem writes it to a circular log
  (journal)
• if theres a crash, on startup the system
  examines the log searching for pending operations
  and committing them if necessary
• result a much faster filesystem check which has
  only to check the log file instead of the whole
  filesystem (which gives a faster boot especially
  for very large filesystem fscks ofull option
  still applies if needed)

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SCO OpenServer 6 updated Features

• Examples of accelerated I/O VxFS filesystem 2
• "Seeing is believing" test 2
• glimpseindex compiled under SCO OS 5.0.4 and
  ported "as-is" onto OpenServer 6.0.0
• mission the reindexing of a 96MB (2700 files)
  and 400MB (9000 files) archive under the same HW
  box (old PIII-700, 128MB of RAM, 20GB EIDE HD)
  with 2 partitions (SCO OS 5.0.7 HTFS and 6.0.0
  VxFS)

SCO OS 5.0.7 SCO OS 6.0.0 96MB 166
seconds 92 seconds 400MB 865 seconds 305
seconds
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SCO OpenServer 6 updated Features

• Examples of accelerated I/O VxFS filesystem 3
• "Seeing is believing" test 3
• given the above 400MB folder, create a tar file
  on the local (root) filesystem
• under SCO OS 5.0.7, the filesystem is HTFS
• under SCO OS 6.0.0, the filesystem is the new
  VxFS

SCO OS 5.0.7 SCO OS 6.0.0 TAR 647
seconds 213 seconds
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SCO OpenServer 6 updated Features

• Examples of enhanced I/O large fs (LFS) 1
• LFS enabled by default of Root filesystem is vxfs
• Check that LFS its enabled using
• fsadm / (should report unlimited)
• To allow for the creation of large files run
• ulimit unlimited
• Applications from OSR5 must be ported to take
  advantage of LFS
• Use open64(S) instead of open(S)
• Use stat64(S) instead of stat(S) etc

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SCO OpenServer 6 updated Features

• Examples of enhanced I/O large fs (LFS) 2
• Test Large Filesystem Support using
• dd if/dev/zero ofbig bs1024k count2100
• ls -l big
• Utilities that are Large File Aware
• cat(1), du(1), pathchk(1), chgrp(1), ff(1M)
• pax(1), chmod(1), find(1), pwd(1), chown(1)
• fsck(1M), cksum(1), fsdb(1M), rm(1)
• cmp(1), ln(1), rmdir(1), compress(1), ls(1),
  sum(1)
• cp(1), mkdir(1), rcp(1) touch(1), cpio(1),
  mkfs(1M), ulimit(1)
• dd(1M), mv(1), uncompress(1), df(1M) ncheck(1M),
  zcat(1)
• cpio(C) - All except cpio(C) are found in /u95/bin

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SCO OpenServer 6 Commands utils

• Command and Utility Differences 1
• OpenServer 6 contains
• Many OpenServer 5 commands and utilities
• Some are redundant (e.g. badblk(ADM) )
• Some updated OpenServer 5 commands and utilities
• e.g. cpio(C) now handles large files
• Some new commands and utilities
• e.g. sdiadd(ADM) supports a new features of OSR6
• Some SVR5 commands for compatibility with
  UnixWare
• These are found in /udk/bin
• Some LFS commands that are not OSR5 compatible
• These are found in /u95/bin

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SCO OpenServer 6 Commands utils

• Command and Utility Differences 2
• pstat(C) has been removed, use crash(ADM) instead
• kprf(ADM) and kprpt(ADM) replaced by
  prfstat(ADM), prfsnap(ADM) and prfpr(ADM)
• The following commands are obsolete
• eisa(ADM), pipe(ADM), pipestat(ADM) and
  tickadj(ADM)
• badblk(ADM) and badtrk(ADM) dkinit(ADM)

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SCO OpenServer 6 Commands utils

• Command and Utility Differences 3
• Large Filesystem Aware commands will all be based
  on UnixWare commands with exception of cpio(C)
• SCO OpenServer 6 PATH recommendation
• /bin - traditional OSR5 user
• /u95/bin/bin - traditional OSR5 user who wants
  LFS
• /udk/bin/u95/bin/bin - users running a UW7 app

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SCO OpenServer 6 post FCS

• Features being considered post FCS
• In-place Upgrade
• Network Install
• Merge 5 with VNET, Audio, Winsock2 WinXP
  support
• Java 1.5
• OpenServer 6 Replication Kit
• Online Data Manager (ODM)
• Reliant HA
• SCOadmin DNS Manager

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Sample screenshots
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OpenServer Boot splash screen
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OpenServer graphical Login Screen
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OpenServer Online Help
You can access the online help either local or
from any remote webclient http//machine8457
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Printbook create your PDFs from Help
The Printbook feature in the SCO Online help
allows to create PDF Files for certain chapters
or topics of the SCO Openserver documentation
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KDE3.3 is provided as alternative Desktop
/etc/default/X11 allows to switch between old
XDT3 and KDE3
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Webbrowser and Email Client - Mozilla 1.7.8
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Scoadmin Software Manager
The admin tools you are familiar with
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OpenServer 5.0.7 apps are available
old scomail runs on OpenServer 6
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System Certification Suite
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System Certification Suite
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System Certification Suite
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SCO OpenServer 6 - City to City Tour 2005
Roberto Zini - Strhold Evolution Division