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Re: [linux-lvm] Full DRDB device on LVM is now unusable



Dne 29.1.2014 13:45, Seb A napsal(a):
Write Protect appears to be off here (Thanks Angel):

[root Openfiler2 ~]# grep -i "Write Protect" /var/log/messages
kern.info<6>: Jan 28 17:28:11 Openfiler2 kernel: Write protecting the kernel
read-only data: 7056k
kern.notice<5>: Jan 28 17:28:11 Openfiler2 kernel: sd 0:0:0:0: [sda] Write
Protect is off
kern.notice<5>: Jan 28 17:28:11 Openfiler2 kernel: sd 0:0:1:0: [sdb] Write
Protect is off
kern.notice<5>: Jan 28 17:28:11 Openfiler2 kernel: sd 0:0:2:0: [sdc] Write
Protect is off

Kind regards,

Seb A





As a follow-up of irc discussion.


incorrect  filter rules were set.


For drbd its mandatory to let lvm2 command see only those devices which are supposed to be used.

Reference to drbd lvm nesting guide:
http://www.drbd.org/users-guide-8.3/s-nested-lvm.html

Rule #1 - set an appropriate 'filter' is very important.

For activation of nested LV  lvm must not see drbd origin nodes!


Zdenek


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