[DRBD-user] xfs on drbd problems

yoyo64 lionel.hay at agriculture.gouv.fr
Fri Jun 6 15:37:32 CEST 2008

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


I am not sure than xfs_repair will be sufficient to solve my problem, due to
an hardware
suspicious compatibilty (see other posts)
I am wondering about the todo, if I want to dowgrade to ext3

/hda7 partition is xfs for /home , and /dev/drbd/2 is xfs formated for /home
mount by heartbeat

If I want :
/dev/drbd/2 be ext3 formated for /home mount by heartbeat
I think I have to save all my /home(s) directories, then

Do I have an mkfs.ext3 /dev/drbd/2 command, then a restore for /home ?


Do I have to format my /hda7 partition with ext3, then mkfs.ext3 /dev/drbd/2
command, then a restore for /home 

What about meta date (internal for now)

Thanks a lot

Lars Ellenberg wrote:
> On Fri, May 16, 2008 at 02:24:27PM -0700, yoyo64 wrote:
>> hi
>> We have 4 drbd devices , one is xfs , the others ext3
>> Since the beginning, some problemes appeared on samba share for xfs, RO
>> files and so on
>> Now it begin more and more critical because some files disapear.
>> When I try command setfacl, for rights purpose, it is new to have
>> 'segment
>> fault' error !
>> I read on that forum that xfs is very sensitive about hardware specs.
>> How can I verify (in logs) what is the origin of my problem ?
> When system binaries start to throw segfaults,
> I suspect your main memory is faulty. 
> I suggest to first purge all caches
> # echo 3 > /proc/sys/vm/drop_caches
> which causes every library and system binaries to be re-read from stable
> storage, and most likely to a different main memory location than it had
> been before, which may just get the system usable again (because now
> your binaries by chance live in a healthy area of your RAM).
> then get that system down
> as soon and as clean as possible,
> and do a memcheck.
> once you are certain that RAM is ok,
> do a e2fsck and xfs_check/xfs_repair.
> -- 
> : Lars Ellenberg                           http://www.linbit.com :
> : DRBD/HA support and consulting             sales at linbit.com :
> : LINBIT Information Technologies GmbH      Tel +43-1-8178292-0  :
> : Vivenotgasse 48, A-1120 Vienna/Europe     Fax +43-1-8178292-82 :
> __
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