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August 1st, 2024 17:52

How to properly rebuild virtual disks

All,

I have a Dell PowerEdge R630 with a Perc H730 controller running iDRAC 8 and have remote IPMI access.  I need to replace all of the drives without downtime and I am struggling to find the correct documentation on how to rebuild these drives.   Here's where I am currently at:

1) There are a total of 3 Virtual Disks, each in a RAID 1 (Mirror) configuration, as each as 2 physical drives, which is a total of 6 physical.  I had 2 free spare slots. (the drives were 0:1:0, 0:1:1,0:1:2,0:1:3,0:1:4 and 0:1:5)

2) I added two new physical drives into the empty slots, they appeared as global hot spares.

3) I could not find a proper process on how to add a global hot spare into an existing virtual, so I finally just had remote hands pull physical disk 0:1:2 from the system.  The hot spare rebuilt but left me showing 0:1:2 was missing from the system.

4) After the rebuilt was completed and logged in storage events, I had remote hands move the hotspare  in 0:1:6 (which had the remote data rebuilt) into the slot of 0:1:2 hoping that it would see the data as consistent and return to a normal state.  However, it detected it as 'Foreign' and tagged it as 0:2:

5) Knowing that was not what I wanted, I moved that hotspare from the physical slot 0:1:2 back to 0:1:6 and tried inserting a NEW drive in 0:1:2.

Now I have slot #6 has 0:6 with a state of Foreign.  Slot #2 has a ready disk in 0:1:2, and Slot #7 is my OTHER hotspare as 0:1:7.  My virtual disk 1 is showing as degraded, with 0:1:3 and 0:1:7 

Through IPMI/iDRAC8 what is the proper way to move a global hotspare into being actually part of a virtual disk array?

Secondarily, how can I get my first global hotspare, which had rebuilt virtual disk 1, back to not being detected as foreign?

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August 1st, 2024 18:11

It looks like virtual disk 1 rebuilt itself. Now I show physical 0:1:2 as online, and my virtual disk 1 as online.  It is now made up of 0:1:3 (original) and 0:1:7 which was my second hotspare.  

The first hotspare, which got marked as foreign when I moved it, is still marked as foreign.  And the clean drive I inserted into 0:1:2 is online but not a part of any virtual disk, but its also not marked as a hot spare.   I really need to know the proper process for this.

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4K Posts

August 2nd, 2024 04:52

Hello, thanks for choosing Dell and welcome to our community.

 

First and foremost, data backup of course

 

Then Without hotspare remove VD 0:1:0

New disk in

Rebuilding

remove0:1:1

new disk in

rebuild again

Then Online Capacity Expansion (OCE)

 

The video below may help:

 

https://dell.to/4fpMGjj

 

How to change RAID Level or Size of a configured Virtual Disk in iDRAC9 and PERC BIOS

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August 13th, 2024 00:14

First and foremost you should never move a disk with data on it to a different slot in a system as it runs a high risk of corrupting your RAID / Data . 

As for fixing your 'Foreign drive'  issue, that is easy enough. 

Reboot System -> Cntrl+R to enter PERC BIOS, select the controller and press F2 > Foreign Config > Import

CTRL+N to enter Physical Disk Management screen to verify status is good. 

I laterif  you come across a disk being 'Ready' but not rebuilding Select Disk -> press F2 -> Rebuild to start the process. 

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