Comparison: Enterprise Linux Vs. Solaris need feedback and inputs.
Hello All!
First of all, wish you all a very happy and prosperous new year! I was going through some email threads! I saw below comments observations from one of the engineer. I thought this would be the right forum for discussing the same. Any inputs, feedback, comments are most welcome. This would help me as an engineer understand which OS is best and which OS suits what kind of business and business applications. Thanks in Advance! 1. We cannot dynamically allocate new LUNs to linux hosts. This means that every time there is a need for new space, the host must be rebooted. 2. We do not have the ability to obtain core files from paniced or hard hung systems so root cause/diagnosis of issues is next to impossible. 3. Most hardware/OS issues require a reboot. They do not have the stability of Solaris to have a reboot be the last resort. 4. We do not have hardware monitoring on linux so we currently are not aware of local disk failures or memory errors. 5. We are having trouble getting reliable consoles on linux hosts. This means that if a host falls off the network, or hard hangs, we sometimes can't even get onto the console to see what's wrong. 6. There is a known issue with RHEL4 and SUSE 9 having time sync problems. The clock skews from a few seconds to many minutes. There is a work around but time sync problems can serious corruption to databases and applications. 7. Linux scalability above 2 CPU's: linux does not perform well at 4 cpu's and above, making any cost savings a loss in performance. 8. Oracle doens't support VCS on linux so we have to use their RAC. To my knowledge, we have had no successful failovers of the RAC cluster when one of the two nodes had OS related issues. Also, because we cannot use Veritas with RAC, we don't have dynamic multipathing, so there is only one path to the storage. This creates single points of failure for connectivity to the data. 10. Network service resiliance - if linux systems lose network connectivity, they tend to not recover from it (if at all) as well as Solaris boxes do. We've seen multiple cases where linux hosts have lost their network connection and had to be rebooted to be usable again. Regards, Savith |
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Thanks a lot KimVette! Thanks a bunch for your valuable thoughts. I knew, Enterprise Linux is not as bad as it was reported, but wanted to hear from an expert and get to know more. I'll get back to you as soon as I can, with answers for your questions.
Thanks a lot again. |
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