Solaris vs Linux
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This presentation describes the main differences between most major Linux distributions and Solaris Operating Systems.
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Solaris vs Linux
- 1. Solaris vs. Linux Technological Perspective Haim Tzadok CEO
- 2. Disclaimer This lecture describes my solely personal opinion. The information might not be accurate and might be subject to changes at any time. It does not project any opinion from any other company or institute which I am affiliated with. You are encouraged to participate in the lecture and to reflect your own opinion.
- 3. How to compare between OS’s ? In order to compare between Solaris and Linux Operating systems we need to declare several things - What is the purpose of the operating system ? Goal Who is using the operating system ? Usability How the operating system is built ? Quality
- 5. Solaris vs. Linux Purpose Linux Solaris • Embedded • Tablet/Phones • Server X86/X86_64 • Growing application coverage • Good support for DB • No availability • No Availability • Server X86/X86_64 (Intel) • Large ISV install base • Better support for DB • Heavy duty (Mainframe, Itanium) • Minimal ISV install base • Poor support for DB • Heavy duty – SPARC • Large ISV install base • Better support for DB
- 7. Solaris vs. Linux Role Demand Linux Solaris Managers Consistency High system throughput • Good stability • Excellent stability End users Low application response time • Good HW/SW Integration. • Excellent HW/SW Integration. Programmers Fast access to system resources • Excellent API’s • Good binary compatibility • Good API’s • Excellent binary compatibility System Administrators Ability to install and administer the system easily • Good administration Ability • Excellent Administration Ability
- 8. Solaris vs. Linux Quality Hardware Integration Intel, SPARC vs. Kernel Well engineered vs. File-system ZFS vs. Networking Network virtualization vs. Scheduling Scheduling classes vs. IO & Storage Multipathing/COMSTAR vs. Virtualization Zones OVM for Sparc Installation Jumpstart/AI Packaging IPS Services SMF Intel/Mainframe Well developed ext4/btrfs Regular network Optional API’s Standard device mechanism vs. LXC SW hypervisor vs. Kickstart vs. RPM vs. SVR4
- 9. Hardware Integration – Solaris X86 Integration with Intel CPU’s Sun Microsystem and Intel are collaborating since 2007.
- 10. Hardware Integration – Solaris X86 (cont) FMA – Fault Management Architecture
- 11. Hardware Integration – Solaris SPARC SPARC – The fastest Microprocessor in the world Best of breed architecture CPU features: • Accelerated Cryptography – Cryptography is done by hardware. • Critical Thread optimization – Ability to utilize a core in 2 ways: • 8 hardware threads - when multithreaded behavior is needed. or • 1 hardware thread in case single thread intensive processing is needed. • A Multithreaded Hypervisor – allows to utilize the Virtual environment in Oracle VM for SPARC better, by splitting the hypervisor operations to several hardware threads.
- 12. Hardware Integration – LINUX X86 CentOS RedHat Oracle Linux Oracle Solaris Suse Ubuntu HP ORACLE DELL IBM Where as most Linux distribution require complex matrix of support to other HW vendors, Oracle Linux and Oracle Solaris are adjusted to Oracle Hardware better.
- 13. Kernel - Solaris Well Engineered • Binary compatibility • Kernel Debugger in real time and for postmortem (mdb, crash analysis) • Security (RBAC aware) • Well defined APIs vs. • • • • • Well Developed 18K lines in one day. Much more feature rich Scheduling Security (RBAC aware) Constant changes in API’s
- 14. File System ZFS vs. ext4/btrfs • Matured • Ext4 – very old, btrfs - still • Ease of administration new not implemented in • No evacuation of disk most of the distributions. (until BPR is • Use the old UNIX/POSIX implemented). command semantics. • ZFS integrated with • It sometimes takes 1 zfs DTRACE for better command to be observation, monitoring implemented in 2-4 btrfs and analysis. commands. • Integrated with Image Packaging System More info: http://www.seedsofgenius.net/solaris/zfs-vs-btrfs-a-reference
- 15. Networking Network virtualization vs. • Allows Virtual objects – VNICS, Virtual Switches. • Well engineered. • Structured driver model – the hardware driver layer is separated from other layers. • Structured administration model(dladm, ipadm) • Move from files to DB configuration. • Configuration is object driven (e.g: addresses are now objects) and not text driven (using files). • Flow(QoS) administration • The network configuration is implemented as a service. With Dependency mechanism. Regular network • Basic Network configuration with no virtualization. • Driver have one static implementation for all the functionality of the driver. • Configuration is in old text files. • Most of the configuration is spread over several files.
- 16. Scheduling Scheduling classes vs. • Variety of Scheduling classes (dispadmin –l) • FSS – Fair Share Scheduler. • Ability to configure Scheduling class if needed. • Ability to use – Realtime and Fixed priority classes very easy with no need of programming skills. Optional API’s • Basic Scheduling • Nice for configuring priorities.
- 17. IO & Storage Multipathing COMSTAR • Rich Multipathing support MP supports cross protocols. • Wider support for: • Infiniband • FC • FCoE • Iscsi • COMSTAR – • Ability to create software defined storage – with lun provisioning vs. Standard • Standard IO ability
- 18. Virtualization Local Virtualization (Zones ) or HW virtualization vs. Local Virtualization (LXC) or SW Hypervisor • Zone – • Well engineered • Well embraced • Rich resource management ability • LXC – not yet embraced. • OVM for SPARC– • Hypervisor on chip • Enterprise class virtualization • Supports Oracle stack. hypervisors – Variety of Linux based hypervisors. XEN/Vmware/KVM based.
- 19. Installation Jumpstart/AI vs. Kickstart • Very rich installation • Matured installation ability method. • Integrated update mechanism with ZFS • Boot Environment facility.
- 20. Packaging IPS vs. RPM • Feature rich • Matured packaging packaging system system • Integrated with ZFS • Introduced dependency • Contains dependency facility facility. • Integrated patch mechanism into packaging system.
- 21. Services SMF • Feature rich Services Mechanism • DB driven with xml configuration semantics. • Allows dependencies. • Allows to administer services configuration. And rollback from a configuration if needed. vs. SVR4 • Very old services mechanism. • Text based. • No dependency. • No ability to rollback services configuration.
- 22. Thank you ! See you next Oracle Solaris Forum event