Re: recovering failed and unrecognizable RAID5 during mdadm --grow without backup

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, May 13, 2016 at 05:26:02PM +0300, Claudiu Rad-Lohanel wrote:
> 1. i can't find any documentation anywhere about the --revert-reshape 
> option. how should the command look like? is it available in v3.3.2?

IIRC it's --assemble --update=revert-reshape and it's not mentioned 
in the man page...
 
> 2. is it safe?

Theoretically...
You could do this with overlays.

https://raid.wiki.kernel.org/index.php/Recovering_a_failed_software_RAID#Making_the_harddisks_read-only_using_an_overlay_file

That's what I'd also recommend when running fsck... 
all of these things write on your disks without providing an undo function.

Regards
Andreas Klauer
--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux RAID Wiki]     [ATA RAID]     [Linux SCSI Target Infrastructure]     [Linux Block]     [Linux IDE]     [Linux SCSI]     [Linux Hams]     [Device Mapper]     [Device Mapper Cryptographics]     [Kernel]     [Linux Admin]     [Linux Net]     [GFS]     [RPM]     [git]     [Yosemite Forum]


  Powered by Linux