[dm-devel] Status of resizing/growing dm-multipath devices on the fly

Sharif Nassar lists-dmdevel at mrwacky.com
Mon Aug 11 20:18:13 UTC 2008


On Thu, 7 Aug 2008, Domenico Viggiani wrote:

> * Sharif Nassar wrote:
>>
>> We seem to have a working method for resizing multipath luns
>> from our NetApp filers.  It works on CentOS 4 & 5, for us,
>> and our NetApps.
>> (2 HBA, times 2 paths on each makes for four SCSI LUN to resize)
>>
>> The poorly formatted, unpolished, YMMV, no warranty recipe is:
>>
>> ...
>>
>> Pfew! Done!
>
> Incredible! I will study this later, thanks.
> Any idea if this could work with an EMC Clariion CX 700 array?


While we haven't tested it, I don't see any reason why not.  Since the 
core concern is freeing the device so the kernel can see the new size, it 
shouldn't be an issue.

-sharif




More information about the dm-devel mailing list