Solved

RAID Controller PERC 4e dc - no battery

Posted on 2010-11-16
2
1,011 Views
Last Modified: 2012-05-10
Ok, I have a server that has a PERC 4e dc RAID controller, the memory module went bad so it has been replaced with standard memory with no battery.  Now when we boot the server up it says to disable write back mode.  What risks are we putting ourselves in ?
0
Comment
Question by:redvipergts
[X]
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
  • 2
2 Comments
 
LVL 47

Accepted Solution

by:
David earned 500 total points
ID: 34146837
This is a server, then just bite the bullet, and disable writeback (i.e, set to write-through).   You are risking:
- data loss in event of a power failure, disk failure, or even BSOD
- any rebuild operations will take much longer

Downside is that your writes will be slower, you'll notice it, I'm sure.  But data integrity is probably pretty important, so you just have to put it in write-through mode until new battery can be sourced.

0
 
LVL 47

Expert Comment

by:David
ID: 34146871
Note, since you have no way of protecting against BSOD, bad block(s), disk timeouts, or catastrophic failure, then this really is not an option for you to leave it in write-back mode.   If anybody in management complains about performance in interim, tell then the alternative is to risk data loss and corruption in event of one of these situations ... and if they tell you to do it anyway, then request they send it in email with audit trail.  If your data is medical, financial, i.e, stuff that HIPAA cares about, then they are asking you to break the law to knowingly put it at risk.
0

Featured Post

Why Off-Site Backups Are The Only Way To Go

You are probably backing up your data—but how and where? Ransomware is on the rise and there are variants that specifically target backups. Read on to discover why off-site is the way to go.

Question has a verified solution.

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

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…
Each year, investment in cloud platforms grows more than 20% (https://www.immun.io/hubfs/Immunio_2016/Content/Marketing/Cloud-Security-Report-2016.pdf?submissionGuid=a8d80a00-6fee-4b85-81db-a4e28f681762) as an increasing number of companies begin to…
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 …
This tutorial will walk an individual through the process of installing the necessary services and then configuring a Windows Server 2012 system as an iSCSI target. To install the necessary roles, go to Server Manager, and select Add Roles and Featu…

636 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