Difference between revisions of "Disk Cache Policy LSI"
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| + | <span data-link_translate_he_title="מדיניות מטמון הדיסק LSI" data-link_translate_he_url="%D7%9E%D7%93%D7%99%D7%A0%D7%99%D7%95%D7%AA+%D7%9E%D7%98%D7%9E%D7%95%D7%9F+%D7%94%D7%93%D7%99%D7%A1%D7%A7+LSI"></span>[[:he:מדיניות מטמון הדיסק LSI]][[he:מדיניות מטמון הדיסק LSI]] | ||
<span data-link_translate_ro_title="Politică de Cache disc LSI" data-link_translate_ro_url="Politic%C4%83+de+Cache+disc+LSI"></span>[[:ro:Politică de Cache disc LSI]][[ro:Politică de Cache disc LSI]] | <span data-link_translate_ro_title="Politică de Cache disc LSI" data-link_translate_ro_url="Politic%C4%83+de+Cache+disc+LSI"></span>[[:ro:Politică de Cache disc LSI]][[ro:Politică de Cache disc LSI]] | ||
<span data-link_translate_ru_title="Политика кэша диска LSI" data-link_translate_ru_url="%D0%9F%D0%BE%D0%BB%D0%B8%D1%82%D0%B8%D0%BA%D0%B0+%D0%BA%D1%8D%D1%88%D0%B0+%D0%B4%D0%B8%D1%81%D0%BA%D0%B0+LSI"></span>[[:ru:Политика кэша диска LSI]][[ru:Политика кэша диска LSI]] | <span data-link_translate_ru_title="Политика кэша диска LSI" data-link_translate_ru_url="%D0%9F%D0%BE%D0%BB%D0%B8%D1%82%D0%B8%D0%BA%D0%B0+%D0%BA%D1%8D%D1%88%D0%B0+%D0%B4%D0%B8%D1%81%D0%BA%D0%B0+LSI"></span>[[:ru:Политика кэша диска LSI]][[ru:Политика кэша диска LSI]] | ||
Revision as of 20:09, 14 December 2015
he:מדיניות מטמון הדיסק LSI
ro:Politică de Cache disc LSI
ru:Политика кэша диска LSI
pl:Polityki pamięci podręcznej dysku LSI
ja:ディスク キャッシュ ポリシー LSI
ar:سياسة ذاكرة التخزين المؤقت للقرص LSI
zh:磁盘缓存策略 LSI
de:Disk Cache Policy LSI
nl:Schijf Cache beleid LSI
it:Criteri di Cache del disco LSI
pt:Diretiva de Cache de disco LSI
es:Directiva de caché de disco LSI
fr:Disk Cache Policy LSI
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Introduction
Enabling or disabling the disk cache policy with a LSI Raid card (Avago ) under Linux.
Place
To enable or disable disk cache policy, we must perform the procedure below. By default, LSI (Avago) Let the cache disk policy enabled the Raid for 0 - Stripping. Reminder, the activation of the cache provides a performance gain but also a risk of corruption of data in the event of loss of power from Server.
Here are the commands to perform :
- CD /usr/local/src
- wget http://mirror02.ikoula.com/priv/binaries/raid/lsiutil/lsiutil.x86_64
- chmod +x lsiutil.x 86_64
- ./lsiutil.x86_64
Select the raid card concerned :
Then, choose the option 21. RAID action :
Go to the option 32. Change volume settings:
The question Write Caching, select "0" to disable the cache disk policy or "1" to activate :
Finish by testing that it is enabled. Why redo the option 21 Then 32:
We can see above the write cache is now enabled.
Conclusion
We just modify the cache disk e policy by enabling or disabling the option disk write cache. For a gain in performance, so it's important to do it after creating a raid 1 (Mirroring ). This procedure works in Linux Debian and Centos.
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