[DRBD-user] Detection of Logical Volume on nested LVM

Olivier LAMBERT lambert.olivier at gmail.com
Mon Mar 15 10:02:55 CET 2010

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

Dan Barker, you are my hero !

In my iSCSI config on my DRBD hosts, I had :

So, iSCSI use some caching, and replacing by :

works perfectly now !

Thank you everyone for suggestions :)

Last question for you Dan : where did you find that was iSCSI blockio
the answer of your problems ?



On Fri, Mar 12, 2010 at 11:34 PM, dbarker <dbarker at visioncomm.net> wrote:
> 2)
>  You observe that data written on some iscsi client
>  to a target on top of DRBD is not (immediately) visible
>  from some other iscsi client.
>  This I have to believe you.
> I haven't figured out the structure here from these messages, but I did see
> the keyword iSCSI. I had similar problems with iscsi-target LUNs on drbd
> when I had them defined as fileio. iscsi-target was caching. Changing the
> definitions to blockio fixed all. Don't know if this is applicable to your
> situation, but the following worked for me. I was using a VMFS filesystem on
> the iSCSI targets.
> Dan Barker
> cat /etc/ietd.conf
>  Target iqn.2010-03.com.visioncomm.Storage00:Storage00
>  Lun 0 Path=/dev/drbd1,Type=blockio,ScsiSN=SPIDSK-090311-00
>  Lun 1 Path=/dev/drbd2,Type=blockio,ScsiSN=SPIDSK-090312-00
>  Alias iDISK0
> --
> View this message in context: http://old.nabble.com/Re%3A-Detection-of-Logical-Volume-on-nested-LVM-tp27805567p27883699.html
> Sent from the DRBD - User mailing list archive at Nabble.com.
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