Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Please don't bypass the mailing-list ...
On 12/21/2012 06:04 PM, Anthony G. wrote:
> Thank you for your input. That was my first thought, but I caught hell
> trying
> to get the partition sizes to match. I'm not sure which size reading I
> need to
> take on -nfs2 and then which specific lvcreate command I need to execute on
> -nfs1 to get the size on the latter set properly.
well, you could try the one I put in my previous answer ... and it does
not need to be of the exact size on nfs1 ... equal or more
>
> I've recreated the lv, though (just to try and make some progress), and
> am now
> getting the following, when I try to 'service drbd start' on -nfs1:
>
> DRBD's startup script waits for the peer node(s) to appear.
> - In case this node was already a degraded cluster before the
> reboot the timeout is 0 seconds. [degr-wfc-timeout]
> - If the peer was available before the reboot the timeout will
> expire after 0 seconds. [wfc-timeout]
> (These values are for resource 'nfs'; 0 sec -> wait forever)
> To abort waiting enter 'yes' [ 123]:yes
>
> 'netstat -a' doesn't show -nfs2 listening on port 7789, but I do see
> drbd-related
> processes running on that box.
so the resource on nfs2 is in disconnected state .... do a "drbdadm
adjust nfs" on nfs2
Regards,
Andreas
>
> -Anthony
>
> Date: Fri, 21 Dec 2012 17:25:01 +0100
> From: andreas at hastexo.com
> To: drbd-user at lists.linbit.com
> Subject: Re: [DRBD-user] “The peer's disk size is too small!” messages
> on attempts to add rebuilt pee
>
> On 12/21/2012 12:13 AM, Anthony G. wrote:
>> Hi,
>>
>> There's so much information relating to my current configuration, that
>> I'm not sure what I should post here. Let me start by saying that I had
>> two Ubuntu 10.04 hosts configured in a DRBD relationship: sf02-nfs1
>> (primary) and sf0-nfs2 (secondary). -nfs1 suffered a major filesystem
>> fault. I had to make -nfs2 primary and rebuild -nfs1. I want to
>> eventually have all of my machines on 12.04, so I took this as an
>> opportunity to set -nfs1 on that OS.
>>
>> Here is a copy of my main configuration file (/etc/drbd.d/nfs.res):
>>
>> resource nfs {
>> on sf02-nfs2 {
>> device /dev/drbd0;
>> disk /dev/ubuntu/drbd-nfs;
>> address 10.0.6.2:7789;
>> meta-disk internal;
>> }
>> on sf02-nfs1 {
>> device /dev/drbd0;
>> disk /dev/ubuntuvg/drbd-nfs;
>> address 10.0.6.1:7789;
>> meta-disk internal;
>> }
>> }
>>
>>
>> I'm trying to re-introduce -nfs1 into the DRBD relationship and am
>> having trouble. I have:
>>
>>
>> 1.) created the resource "nfs" on -nfs1 ('drbdadm create-md nfs')
>>
>> 2.) run 'drbdadm primary nfs' on -nfs2 and 'drbdadm secondary nfs' on -nfs1.
>>
>> 3.) run drbdadm -- --overwrite-data-of-peer primary all' from -nfs2.
>>
>>
>> But /var/log/kern.log shows:
>>
>> =====
>>
>> Dec 19 19:55:47 sf02-nfs2 kernel: [9284165.843938] block drbd0:
>> Handshake successful: Agreed network protocol version 91
>>
>> Dec 19 19:55:47 sf02-nfs2 kernel: [9284165.843949] block drbd0: conn(
>> WFConnection -> WFReportParams )
>>
>> Dec 19 19:55:47 sf02-nfs2 kernel: [9284165.844171] block drbd0: Starting
>> asender thread (from drbd0_receiver [2452])
>>
>> Dec 19 19:55:47 sf02-nfs2 kernel: [9284165.844539] block drbd0:
>> data-integrity-alg: <not-used>
>>
>> Dec 19 19:55:47 sf02-nfs2 kernel: [9284165.844610] block drbd0: *The
>> peer's disk size is too small!*
>>
>> Dec 19 19:55:47 sf02-nfs2 kernel: [9284165.844617] block drbd0: conn(
>> WFReportParams -> Disconnecting )
>>
>> Dec 19 19:55:47 sf02-nfs2 kernel: [9284165.844626] block drbd0: error
>> receiving ReportSizes, l: 32!
>>
>> Dec 19 19:55:47 sf02-nfs2 kernel: [9284165.844680] block drbd0: asender
>> terminated
>>
>> Dec 19 19:55:47 sf02-nfs2 kernel: [9284165.844691] block drbd0:
>> Terminating asender thread
>>
>> Dec 19 19:55:47 sf02-nfs2 kernel: [9284165.844746] block drbd0:
>> Connection closed
>>
>> Dec 19 19:55:47 sf02-nfs2 kernel: [9284165.844755] block drbd0: conn(
>> Disconnecting -> StandAlone )
>>
>> Dec 19 19:55:47 sf02-nfs2 kernel: [9284165.844791] block drbd0: receiver
>> terminated
>>
>> Dec 19 19:55:47 sf02-nfs2 kernel: [9284165.844794] block drbd0:
>> Terminating receiver thread
>>
>> =====
>>
>>
>> So, it seems that a difference in the size of drbd0 on the respective
>> machines is the source of my trouble. 'cat /proc/partitions' (output
>> pasted at the end of this message) on each machine tells me that -nfs2's
>> partition is around 348148 blocks larger than -nfs1's. -nfs2 contains
>> my company's Production data, so I do not, of course, want to do
>> anything destructive there. I can, however, certainly recreate the
>> resource on -nfs1.
>>
>>
>> Does anyone out there know what steps I need to take to make the
>> partition sizes match? Of course, I'm working under the belief that the
>> "peer's disk size is too small" message points up the source of my
>> trouble. Let me know, of course, if I need to post more information on
>> my setup.
>
> You are using LVM, so simply resize the lv below DRBD on nfs1 to be at
> least of the same size or bigger ala:
>
> lvresize -L+200M ubuntuvg/drbd-nfs
>
> ... then recreate meta-data on that resized lv on nfs1 and on nfs1 do a:
>
> drbdadm up nfs
>
>
> Regards,
> Andreas
>
> --
> Need help with DRBD?
> http://www.hastexo.com/now
>
>>
>>
>> Thanks,
>>
>>
>> -Anthony
>>
>>
>>
>>
>>
>>
>> ==========
>>
>> root at sf02-nfs1:/dev/ubuntuvg# cat /proc/partitions
>>
>> major minor #blocks name
>>
>>
>> 8 0 1952448512 sda
>>
>> 8 1 512000 sda1
>>
>> 8 2 1 sda2
>>
>> 8 5 1886388224sda5
>>
>> 252 0 20971520 dm-0
>>
>> 252 1 5242880 dm-1
>>
>> 252 2 1706033152 dm-2
>>
>> 147 0 1705981052 drbd0
>>
>>
>>
>> root at sf02-nfs2:/etc/drbd.d# cat /proc/partitions
>>
>> major minor #blocks name
>>
>>
>> 8 0 1952448512 sda
>>
>> 8 1 248832 sda1
>>
>> 8 2 1 sda2
>>
>> 8 5 1952196608 sda5
>>
>> 252 0 209715200 dm-0ubuntuvg-root
>>
>> 252 1 36098048 dm-1ubuntuvg-swap
>>
>> 252 2 1706381312 dm-2ubuntuvg-drbd--nfs
>>
>> 147 0 1706329200 drbd0
>>
>>
>>
>>
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>>
>
>
>
>
>
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