What are the recognized ways to increase the size of the RAID array online/offline?

Posted by user149509 on Server Fault See other posts from Server Fault or by user149509
Published on 2012-12-13T15:15:54Z Indexed on 2012/12/13 17:05 UTC
Read the original article Hit count: 173

Filed under:

raid

|

resize

|

array

Is it possible, in theory, increase the size of the RAID-array of any level just by adding new drive(s)? Variant like "backup whole data -> delete old array -> add/replace disks -> create new array -> restore data" is obvious so what are the other options?

Does it depend on the RAID-level only or on the implementation of RAID-controller only, or on both?

Adding new disks to a striped array necessarily leads to a rebuilding of the array with the redistribution of the strips to the new drives?
What steps should be done to increase size of RAID-array in online/offline scenarios?
Especially interesting RAID-5 and RAID-10.
I would like to see the big picture.

© Server Fault or respective owner

Related posts about raid

Booting from integrated RAID controller when another RAID controller is installed in a PCIe slot

as seen on Server Fault - Search for 'Server Fault'
I have a GA MA785GT UD3H motherboard with Windows Server 2008 R2 installed on a RAID1 using the on-board RAID controller. I have now installed a RocketRaid 2680 controller and set up a RAID5 for all my data to be stored on. Unfortunately I now cannot boot from the RAID1 anymore, the PC is trying… >>> More
Onboard RAID vs Software RAID

as seen on Server Fault - Search for 'Server Fault'
My motherboard, an Asus M4a79t Deluxe, advertises RAID 0/1/5 capabilities. My limited understanding is that onboard RAID is better than software RAID. Is this necessarily true? Is an onboard RAID controller closer in performance to a software controller or a dedicated hardware controller? >>> More
RAID-1 and regular drive removal (using RAID-1 as a backup measure)

as seen on Super User - Search for 'Super User'
Is using mdadm's RAID-1 of 2 partitions (one on laptop's internal HDD, one on external HDD) a good idea. I want the system to work as RAID-1 if both drives are present, work as regular volume (degradad RAID-1) if external HDD is unplugged and quickly resync when I plug external HDD again. Questions: Is… >>> More
Explain difference in SQLIO numbers for RAID 0 versus RAID 5 over 6 disks

as seen on Stack Overflow - Search for 'Stack Overflow'
When using the SQLIO benchmark tool on a 4-core Dell server with 6 15k 450GB (fast) drives, RAID 0, we found the max throughput was 2MB per second. But when configured as RAID 5, we get 30 MB per second. It seems that the RAID controller, Dell Perc 5i integrated controller, is maxing out the… >>> More
RAID 5 RECONSTRUCT with RAID Reconstructor

as seen on Server Fault - Search for 'Server Fault'
I have Dell Poweredge server 2600 with Raid 5 in 3 hard drive Scsi 36gb each, it was fail to boot sinc the third drive is offline. I attached Sata card adapter to Sata hard drive and install OS SERVER 2003 to it, downloaded drivers for Raid and everything goes fine when I use recovery data software… >>> More

Related posts about resize

Resize Clipping Path on window resize in WPF

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, I was wondering how to resize a Clipping path dynamically when resizing the window. Right now I'm taking a rectangle in Expression Blend that resizes with the window. Applying this rectangle to a circle as a clipping path makes the rectangle fixed, and it won't resize anymore. I've seen different… >>> More
How to resize YouTube player when Window Resize

as seen on Stack Overflow - Search for 'Stack Overflow'
I want to show Popup window contain YouTube video. My question is how to resize YouTube Player when user resize the Popup Window ? Head section of Popup windows PHP/HTML code <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html… >>> More
JavaScript window resize

as seen on Stack Overflow - Search for 'Stack Overflow'
I have piece of javascript code, which should process when the browser window is resized. var resize=$('div.resize',$(this).parent())[0]; resize.style.marginRight=(resize.offsetWidth-$(this)[0].offsetWidth)+'px' Tryed this stuff (doesn't work): var resize=$('div.resize',$(this).parent())[0]; window… >>> More
JQUERY UI Accordion Resize on Window Resize?

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm using the JQUERY UI Accordion module: <script type="text/javascript"> $(function() { $("#sidebar_column_accordion").accordion({ fillSpace: true, icons: { 'header': 'ui-icon-plus', 'headerSelected': 'ui-icon-minus' } }); }); </script> By using the fillSpace… >>> More
Gridpanel auto resize on window resize

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm using the array-grid extjs example to try and fit a gridpanel into a container window. The problem is on resizing the container window, the gridpanel doesn't automatically fit the new size. As I understand it that's how it's supposed to work. Here's the link to the example: http://www.extjs.com/deploy/dev/examples/grid/array-grid… >>> More