Difference between revisions of "Disk Cache Policy LSI"

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<span data-link_translate_es_title="Directiva de caché de disco LSI"  data-link_translate_es_url="Directiva+de+cach%C3%A9+de+disco+LSI"></span>[[:es:Directiva de caché de disco LSI]][[es:Directiva de caché de disco LSI]]
 
<span data-link_translate_fr_title="Disk Cache Policy LSI"  data-link_translate_fr_url="Disk_Cache_Policy_LSI"></span>[[:fr:Disk Cache Policy LSI]][[fr:Disk Cache Policy LSI]]
 
<span data-link_translate_fr_title="Disk Cache Policy LSI"  data-link_translate_fr_url="Disk_Cache_Policy_LSI"></span>[[:fr:Disk Cache Policy LSI]][[fr:Disk Cache Policy LSI]]
 
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Revision as of 20:09, 14 December 2015

es:Directiva de caché de disco LSI fr:Disk Cache Policy LSI

This article has been created by an automatic translation software. You can view the article source here.

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 :

  1. CD /usr/local/src
  2. wget http://mirror02.ikoula.com/priv/binaries/raid/lsiutil/lsiutil.x86_64
  3. chmod +x lsiutil.x 86_64
  4. ./lsiutil.x86_64

Select the raid card concerned :

Disk Cache Policy LSI 1.PNG

Then, choose the option 21. RAID action :

Disk Cache Policy LSI 2.PNG

Go to the option 32. Change volume settings:

Disk Cache Policy LSI 3.PNG

The question Write Caching, select "0" to disable the cache disk policy or "1" to activate :

Disk Cache Policy LSI 4.PNG

Finish by testing that it is enabled. Why redo the option 21 Then 32:

Disk Cache Policy LSI 5.PNG

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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