Avatar of eli290
eli290
 asked on

Add Hard drive to Raid

I have a Raid 5 config on a backup server and I would like to know if there is a way to add another HD to the server. I know I cant add it to the raid array without reconfiguring the array and basically having to rebuild the server. I really just want to add the drive as a slave so that I can see it and use it just for a backup. Is this possible?
Server Hardware

Avatar of undefined
Last Comment
PowerEdgeTech

8/22/2022 - Mon
CHKwan

What hardware are you on? It all depends on the RAID card / NAS feature.
eli290

ASKER
This is a Dell poweredge T410. I am running Vmware esi 5 on it as well
Tony Giangreco

I agree, we need the server brand, model, service tag (if it's a dell), OS and current raid config.
Experts Exchange is like having an extremely knowledgeable team sitting and waiting for your call. Couldn't do my job half as well as I do without it!
James Murphy
PowerEdgeTech

It depends completely on your controller.  

Which server do you have?
Which RAID controller are you using?

Many controllers allow you to add a disk to a RAID array ON THE FLY, without the need for rebuilding the server ... we just need to know which you have to be able to tell you if it is supported.
eli290

ASKER
Dell Service Tag 16KPFN1
PowerEdgeTech

If you are running ESXi on a RAID 5 on a Dell server, then your controller does support "online expansion", or growing your RAID 5 by adding a disk ... whether you are using a PERC 6 or a PERC H700.

This cannot be done from the BIOS though, so you will either have to use the ESXi VIB for OpenManage Server Administrator, or use OMSA Live, or possibly even load OMSA on a Windows guest OS to intiate a Reconfigure of your existing x disk RAID 5 to an x+1 disk RAID 5.
Get an unlimited membership to EE for less than $4 a week.
Unlimited question asking, solutions, articles and more.
Tony Giangreco

I agree with PoewerEdgetech, ESXI adds a leyer of complication. The proper menthing is to use Dell's Open Manage Server app on a client and expand in that manner.
CHKwan

T410 should be running PERC6i RAID card for buildin RAID, which support OCE
Step by step guide
http://blog.biztactix.com.au/content/perc-6i-online-capacity-expansion
PowerEdgeTech

You are using an H700, so this can be done.  Another thing to consider ... how large are your drives?  Your order details show a single 2TB disk, so I would imagine you added your own disks.  Does ESXi still have a 2TB limit per store?
I started with Experts Exchange in 2004 and it's been a mainstay of my professional computing life since. It helped me launch a career as a programmer / Oracle data analyst
William Peck
eli290

ASKER
Yeah I have all 2 Tb drives and ESXi is still limited due to the block size...
PowerEdgeTech

If you currently have a RAID 5 with 2TB disks, that would give you a single 4TB store ... unless you have "sliced" (created multiple arrays across the disks) the disk into smaller virtual disks (arrays), in which case, OCE/expansion is no longer an option.
CHKwan

Just note that it is a H700 through. Also it can be directly extend in ESXi through the LSI utility
http://translate.google.com/translate?sl=auto&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&eotf=1&u=http%3A%2F%2Fwww.cumt.org%2Fblog%2F510&act=url

PS. Google translated
Get an unlimited membership to EE for less than $4 a week.
Unlimited question asking, solutions, articles and more.
eli290

ASKER
i currently have 5 -2tb disks. 4 are sep 1.76tb data stores and 1 is a hotspare.
ASKER CERTIFIED SOLUTION
PowerEdgeTech

Log in or sign up to see answer
Become an EE member today7-DAY FREE TRIAL
Members can start a 7-Day Free trial then enjoy unlimited access to the platform
Sign up - Free for 7 days
or
Learn why we charge membership fees
We get it - no one likes a content blocker. Take one extra minute and find out why we block content.
Not exactly the question you had in mind?
Sign up for an EE membership and get your own personalized solution. With an EE membership, you can ask unlimited troubleshooting, research, or opinion questions.
ask a question