Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
We had check that our current LE settings
are not idetical, Thanks for the tips. Its now working.
----- Original Message -----
From: "Lars Ellenberg" <Lars.Ellenberg at linbit.com>
To: <drbd-user at lists.linbit.com>
Sent: Saturday, October 08, 2005 11:16 AM
Subject: Re: [DRBD-user] attempt to access beyond end of device
/ 2005-10-07 19:08:11 +0800
\ Francis I. Malolot:
> But we double check our volume,all nodes has the size
> it had all 1.5TB.See below the xfs_info of both nodes.
the xfs_info is read from the super block, which is located at the very
start of the device, and has been mirrored by drbd, so it is identical.
obviously.
> data = bsize=4096 blocks=384008192,
if I just take this line,
this is 8*384008192 == 3072065536 sectors.
this is clearly _the_same_ as [A],
but clearly larger than [B] and
therefore beyond end of device (after connect).
> ok. then, your lower level devices on the two nodes are not of the same
> size, and you created the file system on the larger one.
> now they connect, and DRBD can only "export" the minimum of the device
> sizes to user space.
>
> let me quote from the log below:
>
> first creation of state block:
> > drbd0: 1536032768 KB now marked out-of-sync by on disk bit-map.
[A] 3072065536 sectors
> after handshake:
> > drbd0: 1535508480 KB now marked out-of-sync by on disk bit-map.
> these are 3071016960 sectors, which is later the "limit"
> in the "attempt ..." messages.
>
> > drbd0: rw=0, want=3072065536, limit=3071016960
[A] ^^^^^^^^^^ ^^^^^^^^^^ [B]
> whereas XFS still thinks it has 3072065536 sectors,
> and tries to use them.
>
> does that make sense to you?
you want to compare
# cat /proc/partitions
# lvs --units s
# dmsetup table
# ...
--
: Lars Ellenberg Tel +43-1-8178292-0 :
: LINBIT Information Technologies GmbH Fax +43-1-8178292-82 :
: Schoenbrunner Str. 244, A-1120 Vienna/Europe http://www.linbit.com :
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