Dell PERC H755 compatibility

rickylai

Cadet
Joined
Jun 13, 2023
Messages
2
<div class="bbWrapper">I am planning to buy a new Dell R750 Server for my TrueNAS Server. The dell server comes with Dell PERC H755 SAS Raid Card.<br /> <br /> I heard that Raid Card should be avoided for TrueNAS. But the H755 comes with HBA (non-raid) mode. <br /> <br /> So is it ok to use the H755 has controller card?<br /> <br /> Thanks!</div>
 

jgreco

Resident Grinch
Joined
May 29, 2011
Messages
18,680
<div class="bbWrapper"><blockquote data-attributes="member: 125759" data-quote="rickylai" data-source="post: 764609" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/community/goto/post?id=764609" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-764609">rickylai said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> I am planning to buy a new Dell R750 Server for my TrueNAS Server. The dell server comes with Dell PERC H755 SAS Raid Card.<br /> <br /> I heard that Raid Card should be avoided for TrueNAS. But the H755 comes with HBA (non-raid) mode.<br /> <br /> So is it ok to use the H755 has controller card?<br /> <br /> Thanks! </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote><br /> No, of course not. It's still a RAID card. Get rid of it and use a true HBA.<br /> <br /> <div class="bbCodeBlock bbCodeBlock--unfurl js-unfurl fauxBlockLink" data-unfurl="true" data-result-id="7963" data-url="https://www.truenas.com/community/resources/whats-all-the-noise-about-hbas-and-why-cant-i-use-a-raid-controller.139/" data-host="www.truenas.com" data-pending="false"> <div class="contentRow"> <div class="contentRow-main"> <h3 class="contentRow-header js-unfurl-title"> <a href="https://www.truenas.com/community/resources/whats-all-the-noise-about-hbas-and-why-cant-i-use-a-raid-controller.139/" class="link link--internal fauxBlockLink-blockLink" target="" rel="" data-proxy-href=""> What&#039;s all the noise about HBAs, and why can&#039;t I use a RAID controller? </a> </h3> <div class="contentRow-snippet js-unfurl-desc">1) An HBA is a Host Bus Adapter. This is a controller that allows SAS and SATA devices to be attached to, and communicate directly with, a server. RAID controllers typically aggregate several disks into a Virtual Disk abstraction of some sort...</div> <div class="contentRow-minor contentRow-minor--hideLinks"> <span class="js-unfurl-favicon"> <img src="https://www.truenas.com/community/data/assets/logo/FORUMSFAVICON.png" alt="www.truenas.com" class="bbCodeBlockUnfurl-icon" data-onerror="hide-parent"/> </span> www.truenas.com </div> </div> </div> </div></div>
 
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