Dell PERC 6/i SAS T774H raid card, does it *need* a battery pack to function?

Posted on 2016-10-10
Last Modified: 2016-12-08
Hello all,
I bought a Dell PERC 6/i T774H raid card, but it did not come with a battery pack. Is it necessary in order to use the card in general, or more just a good idea to have one?

Question by:MostHated
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2

Accepted Solution

Casey Weaver earned 500 total points
ID: 41837623
It doesn't have to have it, but because of risks, you'll have to override settings to make it use the card's cache. I also don't recommend any parity based raid like 5 or 6 without a battery as with a power failure or sudden shutdown the risk of parity data not getting written will be high. Parity raids without caching enabled will suffer huge write performance losses.

Author Comment

ID: 41837626
Is it possible to get things setup and installed while I try and source a battery pack, and then plug it in once it arrives and retain everything I already had setup?

Assisted Solution

by:Casey Weaver
Casey Weaver earned 500 total points
ID: 41837629
Yes, and most cards the battery is even hot swappable. On some versions, write caching automatically enables itself in the presence of a battery, in other models, you go into the software and check some boxes to enable it after installing the battery.

Author Comment

ID: 41837632
Much appreciated sir, and thank you for the quick replies. You have been a great help.

Expert Comment

by:Casey Weaver
ID: 41837633

In this document it appears the 6/i enables and disables caching in the presence of a battery. There is a force write back option without a battery, as the page explains.

Featured Post

Edgartown IT Case Study

Learn about Edgartown's quest to ensure the safety and security of the entire town's employee and citizen data. Read the case study!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

This article is an update and follow-up of my previous article:   Storage 101: common concepts in the IT enterprise storage This time, I expand on more frequently used storage concepts.
Finding original email is quite difficult due to their duplicates. From this article, you will come to know why multiple duplicates of same emails appear and how to delete duplicate emails from Outlook securely and instantly while vital emails remai…
This video Micro Tutorial explains how to clone a hard drive using a commercial software product for Windows systems called Casper from Future Systems Solutions (FSS). Cloning makes an exact, complete copy of one hard disk drive (HDD) onto another d…
This video teaches viewers how to encrypt an external drive that requires a password to read and edit the drive. All tasks are done in Disk Utility. Plug in the external drive you wish to encrypt: Make sure all previous data on the drive has been …

730 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question