[DRBD-user] drbd-user Digest, Vol 59, Issue 34

Gabriel Rosca missnebun at gmail.com
Tue Jun 23 21:00:47 CEST 2009

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


Tino ... thank you so much for the replay ... the problem was my domU config
... I had in  there:
bootloader = "/usr/bin/pygrub"
disk = [ "phy:drbd1,xvda,w" ]

as per drbd manual ... said :


   -

   You are configuring a domU without the kernel, initrd, and extra options,
   relying instead on bootloader and bootloader_args to use a Xen
   pseudo-bootloader, *and* that pseudo-bootloader does not support the
   drbd: syntax.


the correct dumU config:

name = "genxrestore"
uuid = "365ed881-6e29-43d1-6529-2f702e8daefa"
memory = "512"
maxmem = 512
kernel = "/home/domukernel/vmlinuz-2.6.18-128.1.14.el5xen_x64"
ramdisk = "/home/domukernel/initrd-2.6.18-128.1.14.el5xen_64.img"
root = "/dev/xvda3"
extra = ""
disk = [ "drbd:genxrestore,xvda,w" ]
vif = [ "mac=00:16:3e:20:6c:a2,bridge=xenbr0" ]
vfb = [  ]
vcpus=1
on_poweroff = "destroy"
on_reboot = "restart"
on_crash = "restart"

now I have to move on and create a fail over :)

xen0                     xen1

domU1                 domU3
domU2                 domU4

now if xen1 fail then I want domU3 and domU4 to start in xen0

Thank you

Gabe



On Tue, Jun 23, 2009 at 6:00 AM, <drbd-user-request at lists.linbit.com> wrote:

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> Today's Topics:
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>   1. Re: Xen LVM DRBD (Maros Timko)
>   2. DRBD 8.3.1 linux 2.6.27.25-highmem Crash (Tim Evers)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 23 Jun 2009 11:39:31 +0200
> From: Maros Timko <timkom at gmail.com>
> Subject: Re: [DRBD-user] Xen LVM DRBD
> To: drbd-user at lists.linbit.com
> Message-ID: <20090623093931.GB9124 at soda.linbit>
> Content-Type: text/plain; charset=us-ascii
>
> Hm,
>
> this looks like you have desperately tried a lot of things together in one
> big step. Have you already tried to ask old good friend google, or chek the
> site:
> http://www.drbd.org/users-guide/s-xen-configure-domu.html
>
> The issue I can see in your setup is that you don't have equal xen DomU
> files on both machines (xvda1 VS xvda). May be you could first try live
> migration on a shared storage. It could be easier at the beginning.
> The question is if you really need live migration when you want to create
> higly available system. Live migration can be handy for maintanance tasks,
> but will not work on failovers.
>
> Tino
>
>
> [edit by list admin:
> trimmed 700+ quoted lines without comment.
> trimmed the double amount in the html of this multipart message.
> please trim your posts, and your replies. ]
>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 22 Jun 2009 22:34:06 +0200
> From: Tim Evers <it at niemail.de>
> Subject: [DRBD-user] DRBD 8.3.1 linux 2.6.27.25-highmem Crash
> To: drbd-user at lists.linbit.com
> Message-ID: <4A3FEABE.3080100 at niemail.de>
> Content-Type: text/plain; charset=ISO-8859-15
>
> Hi,
>
> I have a iSCSI SAN server using drbd in the backend. This results in atm
> 32 logical volumes each with drbd on top and exported via iscsi.
>
> During normal operation everything is fine. But if I fire up a new drbd
> device (drbdadm up res or drbdadm adjust res) sometimes (about 1 out of
> ten times) the machine crashes with kernel panic.
>
> Unfortunately I have no trace of the crashes. It seems to be more likely
> under heavy IO activity.
>
> A hint anyone?
>
> Config:
>
> Intel L5420
> 8 GIG Ram
> 3 3ware 9690SA
> 16 WDC FYPS 1TB
> 4 WDC Velociraptor HLFS150
> combined into 5 RAID10 (2+2+2+2+0.6 TB)
> Kernel 2.6.27.25-highmem
> DRBD 8.3.1
> Enterprise ISCSI target 4.0.17
> on Debian Lenny
>
> Regards
>
> Tim Evers
>
>
> ------------------------------
>
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>
> End of drbd-user Digest, Vol 59, Issue 34
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