Difference between revisions of "Disk Cache Policy LSI"
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| + | <span data-link_translate_ja_title="ディスク キャッシュ ポリシー LSI" data-link_translate_ja_url="%E3%83%87%E3%82%A3%E3%82%B9%E3%82%AF+%E3%82%AD%E3%83%A3%E3%83%83%E3%82%B7%E3%83%A5+%E3%83%9D%E3%83%AA%E3%82%B7%E3%83%BC+LSI"></span>[[:ja:ディスク キャッシュ ポリシー LSI]][[ja:ディスク キャッシュ ポリシー LSI]] | ||
<span data-link_translate_ar_title="سياسة ذاكرة التخزين المؤقت للقرص LSI" data-link_translate_ar_url="%D8%B3%D9%8A%D8%A7%D8%B3%D8%A9+%D8%B0%D8%A7%D9%83%D8%B1%D8%A9+%D8%A7%D9%84%D8%AA%D8%AE%D8%B2%D9%8A%D9%86+%D8%A7%D9%84%D9%85%D8%A4%D9%82%D8%AA+%D9%84%D9%84%D9%82%D8%B1%D8%B5+LSI"></span>[[:ar:سياسة ذاكرة التخزين المؤقت للقرص LSI]][[ar:سياسة ذاكرة التخزين المؤقت للقرص LSI]] | <span data-link_translate_ar_title="سياسة ذاكرة التخزين المؤقت للقرص LSI" data-link_translate_ar_url="%D8%B3%D9%8A%D8%A7%D8%B3%D8%A9+%D8%B0%D8%A7%D9%83%D8%B1%D8%A9+%D8%A7%D9%84%D8%AA%D8%AE%D8%B2%D9%8A%D9%86+%D8%A7%D9%84%D9%85%D8%A4%D9%82%D8%AA+%D9%84%D9%84%D9%82%D8%B1%D8%B5+LSI"></span>[[:ar:سياسة ذاكرة التخزين المؤقت للقرص LSI]][[ar:سياسة ذاكرة التخزين المؤقت للقرص LSI]] | ||
<span data-link_translate_zh_title="磁盘缓存策略 LSI" data-link_translate_zh_url="%E7%A3%81%E7%9B%98%E7%BC%93%E5%AD%98%E7%AD%96%E7%95%A5+LSI"></span>[[:zh:磁盘缓存策略 LSI]][[zh:磁盘缓存策略 LSI]] | <span data-link_translate_zh_title="磁盘缓存策略 LSI" data-link_translate_zh_url="%E7%A3%81%E7%9B%98%E7%BC%93%E5%AD%98%E7%AD%96%E7%95%A5+LSI"></span>[[:zh:磁盘缓存策略 LSI]][[zh:磁盘缓存策略 LSI]] | ||
Revision as of 20:09, 14 December 2015
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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