On Sat, Mar 03, 2012 at 10:28:20PM +0100, John Obaterspok wrote: > Please see below for errors I get when trying to add internal bitmap. [snip...] > okay, I'm trying to add an interal bitmap to see how much it slows down things: > > [root@Emperor ~]# mdadm --version > mdadm - v3.2.3 - 23rd December 2011 > > > [root@Emperor ~]# mdadm --grow --bitmap=internal /dev/md2 > mdadm: failed to set internal bitmap. I think you are using the wrong cmd line syntax. Try the following for adding an internal bitmap to /dev/md2 mdadm --grow /dev/md2 --bitmap=internal If you want to use an external bitmap, use --bitmap="path to file". > [root@Emperor ~]# mdadm --examine-bitmap /dev/md2 > Filename : /dev/md2 > Magic : 00000000 > mdadm: invalid bitmap magic 0x0, the bitmap file appears to be corrupted > Version : 0 > mdadm: unknown bitmap version 0, either the bitmap file is corrupted > or you need to upgrade your tools > [snip...] Bryan -- 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
